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ARC Audio X2 Series 12” Sealed Subwoofer System
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ARC Audio X2 Series 12” Sealed Subwoofer System
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$ 379.99
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🎵 ARC AUDIO X2 V2 12" SEALED SYSTEM 🎵
Complete Subwoofer + Sealed Enclosure Package
⚡ 250W RMS ⚡ 📦 SEALED DESIGN 📦 🎯 1.1 CU.FT. 🎯
ARC Audio X2 v2 Subwoofer + Pro-Line X Performance Series Enclosure
READY-TO-INSTALL COMPLETE SYSTEM
ARC Audio Returns: Precision Engineering Meets Turnkey Convenience
Audio Intensity proudly presents the ARC Audio X2 v2 12" Sealed Subwoofer System—a complete ready-to-install package that reunites enthusiasts with ARC Audio (the 7th brand in our premium catalog, previously featured in Products 38-41 for standard-depth ARC Series subwoofers and Products 44-45 for A-Series shallow-mount designs) while continuing the revolutionary complete subwoofer system category established in Product 49. This turnkey solution combines ARC Audio's acclaimed X2 v2 12" subwoofer—representing the company's entry-level tier where "entry-level" means engineering and build quality that would represent mid-tier or premium products from many mainstream manufacturers—with a Pro-Line X Performance Series sealed enclosure optimized specifically for the X2 v2's Thiele-Small parameters and power handling characteristics.
What distinguishes this system from the recently documented DC Audio Level 1 12" Ported System (Product 49) is the fundamental enclosure design philosophy: sealed vs. ported. Where ported enclosures prioritize deep bass extension and maximum output (the DC Audio system's 34 Hz tuning extends usable response into the 30-40 Hz region), sealed enclosures optimize transient accuracy, power handling safety margins, and compact dimensions. This ARC Audio sealed system delivers bass that sounds tight, controlled, precise, and effortless—characteristics that define audiophile-grade bass reproduction where accuracy matters more than sheer volume, where musical detail preservation takes precedence over chest-thumping impact, and where amplifier power translates directly to acoustic output without the frequency-dependent efficiency variations inherent to ported designs.
The X2 Series represents ARC Audio's Level 1 tier in a product hierarchy that extends upward through premium lines featuring ever-increasing power handling, excursion capability, and exotic materials. But "Level 1" in ARC Audio's engineering-first product philosophy means a subwoofer incorporating double-stacked FEA-optimized magnets, proprietary cooling technologies, 2.0-inch thermally conductive voice coils, reinforced pulp paper cones, and stamped steel baskets with integrated thermal management—specifications and construction techniques commonly found in competitors' mid-tier or premium offerings. ARC Audio's refusal to compromise fundamental engineering even in entry-level products reflects the company's philosophy established over decades: every product bearing the ARC Audio name must deliver performance worthy of that heritage, regardless of price point.
Complementing the X2 v2 subwoofer is the Pro-Line X Performance Series P12-S sealed enclosure—a USA-manufactured sealed enclosure handcrafted in Vacaville, California using the same precision CNC cutting, proprietary Dado interlocking joinery, heavy internal bracing, and 3/4-inch premium MDF construction that defines Pro-Line X's commitment to domestic manufacturing excellence. The 1.1 cubic feet net internal volume provides the optimal acoustic loading for the X2 v2's specifications, balancing low-frequency extension (sealed enclosures naturally roll off deeper bass compared to ported alternatives, but the X2 v2's 13.5mm Xmax and efficient motor design maintain usable output into the 30-35 Hz region) with the transient accuracy and power handling advantages that make sealed designs the preferred choice for audiophiles, sound quality competitors, and enthusiasts who value bass precision over bass pressure.
This complete system arrives fully assembled with the X2 v2 12" subwoofer pre-installed in the sealed enclosure, internally wired to the terminal cup, and ready for immediate amplifier connection. The compact 19" × 14" × 11" dimensions (significantly smaller than the DC Audio ported system's 29" × 15" × 13" footprint) maximize cargo space retention in sedans, SUVs, and trucks while the sealed design's predictable, well-damped response eliminates the subsonic filtering requirements and port clearance concerns inherent to ported installations. Whether you're replacing underperforming factory audio, upgrading from budget aftermarket equipment, or building a system prioritizing sound quality over maximum SPL, this ARC Audio sealed system represents the convergence of American precision engineering and turnkey installation convenience.
🔧 ARC Audio X2 v2 12" Subwoofer: Second-Generation Engineering Excellence 🔧
The heart of this system is the ARC Audio X2 v2 (Version 2) 12" subwoofer—a second-generation refinement of ARC Audio's entry-level X2 Series that incorporates design improvements, manufacturing optimizations, and engineering lessons learned from the original X2 platform. The "v2" designation signifies that this isn't simply the original X2 with cosmetic updates; it's a comprehensive re-engineering incorporating measurable performance enhancements while maintaining the price-to-performance ratio that established the X2 Series reputation.
Power Handling: 250 Watts RMS / 500 Watts Peak
The X2 v2 12" is conservatively rated for 250 watts RMS continuous power handling with 500 watts peak capacity—specifications reflecting ARC Audio's engineering philosophy of honest, achievable ratings backed by extensive thermal testing. ARC Audio's power testing protocols involve sustained operation at rated power levels (250W RMS) for more than 10 hours, followed by "doubling-down" tests where power is progressively increased to identify thermal limits and failure modes. This rigorous validation ensures that 250W RMS represents genuine continuous operation capability, not optimistic marketing numbers that cause thermal failures in real-world use.
To understand the significance of 250W RMS, consider that quality 250-300 watt monoblock amplifiers are available from reputable manufacturers (Rockford Fosgate, Kicker, Alpine, JL Audio) at $120-200 price points—making this power level accessible to budget-conscious enthusiasts while providing sufficient output for impressive bass response in most vehicle applications. The X2 v2's 250W rating positions it in the mainstream performance category above true entry-level designs (typically 150-200W RMS) but below dedicated high-power subwoofers requiring premium amplifiers (400W+ RMS).
250W RMS Thermal Management Advantages:
- 10+ Hour Continuous Operation: ARC Audio's thermal testing validates 250W continuous operation for extended periods without voice coil degradation, adhesive failure, or thermal limiting—ensuring the subwoofer performs reliably during long road trips, extended listening sessions, or all-day demo events.
- Conservative Rating Philosophy: Unlike manufacturers inflating power specifications to impress specification-sheet readers, ARC Audio's 250W rating represents achievable continuous power with substantial thermal safety margins—meaning the subwoofer operating at 200-225W experiences thermal stress levels similar to competitors' designs at 150-175W.
- Sealed Enclosure Synergy: Sealed enclosures provide maximum power handling safety compared to ported alternatives (ported designs increase excursion requirements below tuning frequency, raising mechanical damage risks). The X2 v2's 250W rating fully exploits sealed enclosure advantages without requiring aggressive subsonic filtering.
- Amplifier Accessibility: 250W RMS is achievable with affordable mainstream amplifiers, eliminating the premium amplifier requirements (and associated costs) that high-power subwoofers demand.
Double-Stacked FEA-Optimized Magnet Assembly
The X2 v2's motor assembly features double-stacked magnets designed using Finite Element Analysis (FEA) optimization—computational modeling techniques that allow engineers to simulate magnetic flux distribution, voice coil interaction, and motor force linearity before physical prototyping. FEA optimization identifies motor geometries maximizing efficiency (acoustic output per watt), minimizing distortion (linear motor force throughout excursion range), and optimizing thermal management (heat distribution across motor assembly components).
The double-stacked magnet configuration provides stronger magnetic field intensity compared to single-magnet entry-level designs, translating to improved motor control (the voice coil remains under tighter magnetic influence throughout excursion), enhanced efficiency (more acoustic output per watt), and better thermal stability (magnetic energy distributed across larger motor volume rather than concentrated in smaller single-magnet structure). This motor architecture represents ARC Audio's commitment to performance-first engineering even in entry-level products—many manufacturers reserve double-stacked magnets for mid-tier or premium lines, but ARC Audio includes them as standard in the X2 Series.
2.0-Inch Thermally Conductive Voice Coil
The X2 v2 employs a 2.0-inch diameter voice coil constructed from high-temperature copper-coated aluminum with a Kapton electrical isolator serving as the voice coil former. This material selection reflects sophisticated thermal management engineering:
Advanced Voice Coil Construction Benefits:
- Copper-Coated Aluminum Former: Aluminum provides lightweight thermal conductivity (drawing heat away from voice coil windings while maintaining low moving mass for fast transient response), while copper coating enhances electrical conductivity and heat dissipation at the critical coil-former interface.
- Kapton Electrical Isolator: Kapton (polyimide film) offers exceptional thermal stability (continuous operation at temperatures exceeding 250°C without degradation), electrical insulation properties, and mechanical strength—preventing electrical shorts between voice coil layers while withstanding thermal cycling that would degrade conventional insulators.
- Anodized Black Finish: The aluminum former is anodized black to improve radiative heat transfer (black surfaces radiate thermal energy more efficiently than bare metal), enhancing heat extraction away from voice coil windings and further improving power handling and reducing power compression (the phenomenon where increasing voice coil temperature reduces efficiency).
- 2.0-Inch Diameter Optimization: The 2.0" diameter balances power handling (larger coils provide more heat dissipation surface area) with efficiency (smaller coils reduce moving mass, improving transient response). For 250W RMS applications, 2.0" represents optimal engineering compromise.
The voice coil is available in Dual 2-Ohm (D2) or Dual 4-Ohm (D4) configurations, providing installation flexibility for various amplifier impedance capabilities and system designs. This dual voice coil architecture allows parallel wiring (D2 → 1Ω final impedance; D4 → 2Ω final impedance) for maximum amplifier output or series wiring (D2 → 4Ω; D4 → 8Ω) for older amplifiers or specific system requirements.
📐 13.5mm Xmax: Precision Engineering for Controlled Excursion 📐
The X2 v2 12" features 13.5mm one-way linear excursion (Xmax)—a specification representing the distance the voice coil can travel while remaining within the optimized magnetic gap, maintaining linear motor force and low-distortion operation. This Xmax value positions the X2 v2 in the mainstream performance category, balancing excursion capability with the motor control and efficiency advantages that define sealed enclosure applications.
To contextualize 13.5mm Xmax, consider typical specifications across subwoofer categories. Entry-level designs commonly feature 8-11mm Xmax, limiting output capability and low-frequency extension. Mid-tier designs typically specify 12-15mm Xmax, providing enhanced output while maintaining reasonable motor control requirements. Premium designs often exceed 18-20mm Xmax, delivering maximum output potential at the expense of increased motor complexity and cost. The X2 v2's 13.5mm specification places it solidly in mid-tier excursion territory despite its entry-level pricing—another example of ARC Audio's refusal to compromise fundamental performance specifications regardless of product tier.
Sealed Enclosure Xmax Optimization:
Sealed enclosures provide natural excursion damping through the air spring effect—as the cone moves inward, internal air compresses (increasing restoring force), and as the cone moves outward, internal air rarefies (decreasing opposing force). This acoustic suspension acts as a secondary spring complementing the mechanical suspension (surround + spider), providing several advantages for the X2 v2's 13.5mm Xmax specification:
13.5mm Xmax in 1.1 Cu.Ft. Sealed Enclosure:
- Natural Excursion Limiting: The air spring prevents over-excursion damage even during aggressive amplifier power application—the increasing restoring force as the cone approaches mechanical limits naturally limits excursion to safe levels without requiring aggressive subsonic filtering or electronic limiting.
- Linear Excursion Throughout Operating Range: Sealed enclosure damping maintains the voice coil within the optimized magnetic gap throughout the usable frequency range (typically 25-100 Hz for 12" subwoofers in 1.1 cu.ft. sealed enclosures), ensuring the 13.5mm Xmax specification translates to usable, low-distortion excursion rather than specification-sheet numbers achieved only at specific test frequencies.
- Enhanced Transient Response: The air spring's restoring force improves transient accuracy (the subwoofer's ability to start and stop quickly), producing bass that sounds tight and controlled rather than loose and boomy—critical for musical genres with rapid bass transients (rock, metal, jazz, classical) and movie soundtracks with percussive low-frequency effects.
- Power Handling Protection: Sealed enclosures reduce mechanical stress on suspension components compared to ported designs (which can experience extreme excursions below tuning frequency), allowing the X2 v2 to achieve its 250W RMS power rating with substantial safety margins.
- Predictable Frequency Response: Sealed enclosures provide gradual, predictable bass rolloff (typically 12 dB/octave below resonance frequency) allowing equalization adjustments if desired, while the 13.5mm Xmax ensures sufficient displacement capability to maintain output levels during equalized low-frequency boost.
The X2 v2's large-diameter rubber surround contributes directly to the 13.5mm Xmax specification while providing long-term reliability advantages. Rubber surrounds (compared to foam alternatives common in budget designs) resist environmental degradation—maintaining flexibility and linearity through years of temperature cycling, humidity exposure, and UV light that would cause foam surrounds to deteriorate, crack, or collapse. The large surround diameter allows the 13.5mm excursion while maintaining smooth, linear travel throughout the range, preventing the surround distortion and nonlinear behavior that would introduce audible artifacts.
🏗️ Proprietary Cooling Technologies: Thermal Management Innovation 🏗️
Beyond the X2 v2's thermally conductive voice coil and anodized aluminum former lies a comprehensive cooling system architecture that distinguishes ARC Audio's engineering approach from conventional budget subwoofer designs. The X2 v2 incorporates multiple integrated cooling pathways working synergistically to extract thermal energy from the motor assembly, ensuring sustained 250W RMS operation without thermal limiting or compression.
Proprietary Four-Spoke Stamped Steel Basket with Integrated Cooling
The X2 v2 features a proprietary four-spoke stamped steel basket incorporating several advanced design elements:
Advanced Basket Engineering Features:
- Double-Compound Curve Spokes: The four spokes feature double-compound curvature (curved in two planes rather than simple flat or single-curve designs) that eliminates the flexing and distortion common in conventional stamped baskets. Basket flexing absorbs acoustic energy (reducing efficiency), introduces resonances (coloring the sound), and reduces the accuracy with which motor force translates to cone movement—the double-compound curve design provides exceptional rigidity despite using lightweight stamped steel construction.
- Eight Integrated Cooling Vents: The basket incorporates eight strategically positioned vents allowing hot air to escape from the motor assembly during operation. Heat generated by voice coil resistance (I²R losses converting electrical energy to thermal energy) must be extracted from the motor assembly to prevent thermal limiting—the eight vents provide convective cooling pathways that traditional solid baskets cannot match.
- Pressure Equalization Benefit: The eight vents also prevent pressure changes under the spider (the flexible suspension component attached to the voice coil former). In sealed baskets, cone excursion creates pressure differentials between the area above and below the spider, introducing a secondary pneumatic spring that can reduce driver linearity and low-frequency extension at high excursion levels. The vents equalize pressure, maintaining linear mechanical behavior throughout the 13.5mm Xmax range.
- Stamped Steel Material: Steel baskets (compared to injection-molded plastic alternatives) provide superior rigidity, better resonance control, and enhanced heat sinking—drawing thermal energy away from the motor assembly through conductive heat transfer while the integrated vents provide convective cooling.
Secondary Vent Through T-Yoke Center
Complementing the eight basket vents is a secondary vent machined through the center of the T-Yoke (the back plate of the motor assembly). This central vent provides two critical functions:
- Dust Cap Pressure Relief: The central vent releases pressure from under the dust cap during cone excursion. Without this vent, the sealed volume under the dust cap would create a tertiary pneumatic spring affecting high-frequency response and potentially causing dust cap resonances. The vent eliminates this effect, maintaining predictable frequency response.
- Additional Motor Assembly Cooling: The T-Yoke vent provides an additional thermal pathway for heat extraction from the motor assembly's core. Hot air rising from the voice coil gap can escape through this central vent, improving overall thermal management and contributing to the X2 v2's 250W RMS continuous power rating.
The combination of eight basket vents + T-Yoke central vent + thermally conductive voice coil former + anodized black coating creates a comprehensive thermal management system that allows the X2 v2 to handle 250 watts RMS for 10+ hours—a thermal endurance specification impossible to achieve with conventional cooling approaches relying solely on voice coil thermal conduction without supplemental convective cooling pathways.
🎨 Premium Construction Details: Audiophile-Grade Materials 🎨
The X2 v2's performance specifications are enabled by material selections and construction techniques reflecting ARC Audio's audiophile heritage—a company founded on the principle that car audio can achieve home audio sound quality levels when engineering takes precedence over cost optimization.
Reinforced Pulp Paper Cone with Moisture-Resistant Coating
The X2 v2 features a reinforced pulp paper cone treated with a moisture-resistant coating—a material choice reflecting the balance between acoustic performance and environmental durability. Pulp paper cones offer several performance advantages:
Reinforced Pulp Paper Cone Advantages:
- Natural Internal Damping: Paper's fibrous structure provides inherent internal damping that suppresses cone resonances and breakup modes (the frequencies where cone rigidity becomes insufficient and the cone flexes rather than moving as a rigid piston). This damping produces cleaner, more natural bass reproduction compared to materials with lower internal damping like polypropylene or aluminum.
- Excellent Stiffness-to-Mass Ratio: Reinforced paper provides high stiffness (resisting flexing during excursion) while maintaining low mass (improving transient response and efficiency). This combination allows accurate bass reproduction throughout the X2 v2's operating frequency range.
- Predictable Acoustic Properties: Paper cones have been extensively studied and optimized over decades of loudspeaker engineering, providing predictable, well-understood acoustic behavior that allows precise enclosure tuning and frequency response optimization.
- Moisture Protection: The moisture-resistant coating addresses paper's primary weakness—susceptibility to humidity degradation. The coating prevents moisture absorption that would alter cone mass and stiffness, ensuring predictable performance in high-humidity automotive environments (particularly in coastal regions or humid climates).
- Environmental Reliability: The coating also provides protection against temperature extremes, UV exposure, and environmental contaminants that could degrade uncoated paper over years of automotive use.
High-Roll Conex Spider with Woven Tinsel Leads
The X2 v2's suspension system features a high-roll Conex spider—a multi-corrugation flexible suspension component providing centering force and controlling voice coil movement. The "high-roll" designation indicates multiple concentric corrugations (rolls) that allow the 13.5mm Xmax excursion while maintaining linear restoring force throughout the travel range.
Critical to long-term reliability, the tinsel leads are woven into the spider rather than simply glued or tacked to the surface. Tinsel leads carry electrical signals from the terminal connections to the voice coil, experiencing repeated flexing during every excursion cycle. In conventional designs where tinsel leads are glued to the spider surface, the repeated flexing creates stress concentrations at the glue joints, eventually causing lead fatigue, cracking, and electrical failure (audible as intermittent crackling, complete signal loss, or voice coil rubbing as broken leads prevent proper centering).
ARC Audio's woven tinsel lead construction distributes mechanical stress across multiple woven attachment points, dramatically extending operational lifespan even during the high-excursion, high-cycle operation that defines enthusiast listening habits. This construction technique represents premium engineering typically reserved for high-end subwoofers but included as standard in the X2 Series—another example of ARC Audio refusing to compromise fundamental reliability regardless of product tier.
🏭 Pro-Line X Performance Series Sealed Enclosure: Compact Precision Engineering 🏭
Complementing the X2 v2 subwoofer is the Pro-Line X Performance Series P12-S sealed enclosure—a USA-manufactured sealed enclosure representing Pro-Line X's value-oriented product line designed to deliver professional construction quality and acoustic performance at accessible pricing. The Performance Series occupies the middle ground between generic universal enclosures (built to accommodate any subwoofer with minimal optimization) and the Performance Optimized series (manufacturer-specific designs with customized front baffles and optimized airspace/tuning).
Optimized Sealed Design: 1.1 Cubic Feet Net Volume
The enclosure provides 1.1 cubic feet net internal volume (after subwoofer displacement and internal bracing volume subtraction)—a specification optimized for mainstream 12-inch subwoofers like the X2 v2 requiring balanced sealed enclosure performance. Sealed enclosure volume directly affects system behavior:
1.1 Cu.Ft. Sealed Volume Characteristics:
- Balanced System Q: 1.1 cubic feet provides moderate acoustic loading (system Q, or Qtc) that balances transient accuracy with low-frequency extension. Smaller volumes increase Qtc (tighter, faster bass with reduced deep extension), while larger volumes decrease Qtc (extended deep bass with potentially slower transient response). 1.1 cu.ft. achieves optimal balance for most musical genres and applications.
- Extended Low-Frequency Response: The 1.1 cu.ft. volume allows the X2 v2's 13.5mm Xmax and efficient motor to maintain usable output into the 30-35 Hz region—sufficient for most musical content and movie soundtracks without requiring the larger volumes (1.5-2.0 cu.ft.) that would compromise transient accuracy or consume excessive cargo space.
- Power Handling Optimization: Moderate sealed volumes provide natural excursion damping throughout the operating frequency range, allowing the X2 v2 to achieve its 250W RMS rating with maximum safety margins. Smaller volumes would increase excursion requirements at low frequencies, while larger volumes would reduce damping and potentially compromise power handling.
- Compact Dimensions: 1.1 cu.ft. sealed translates to the compact 19" × 14" × 11" external dimensions, maximizing cargo space retention compared to larger sealed designs or ported alternatives requiring 1.5-2.5+ cu.ft. for comparable performance.
- Universal Compatibility: 1.1 cu.ft. falls within the optimal sealed range for most mainstream 12-inch subwoofers, providing excellent performance not just for the X2 v2 but also alternative drivers should future upgrades be desired.
USA Manufacturing: 3/4-Inch Premium MDF Construction
The enclosure is constructed from 3/4-inch (19mm) thick MDF (Medium-Density Fiberboard) sourced exclusively from Oregon, USA—premium domestic material providing superior acoustic damping compared to conventional plywood or particleboard. MDF's dense, uniform structure resists panel resonances (the drum-head effect where flat panels vibrate at specific frequencies, absorbing acoustic energy and coloring the sound) while providing structural rigidity to contain internal pressures.
Pro-Line X's exclusive use of USA-sourced 3/4-inch MDF (rather than imported materials or thinner panels) ensures consistent quality control and acoustic performance. Thicker panels (3/4" vs. 5/8" or 1/2" budget alternatives) provide dramatically improved rigidity, reducing the panel flexing that degrades efficiency and introduces distortion.
ShopSabre CNC Precision + Dado Interlocking Joinery
Every panel is cut using industrial-grade ShopSabre CNC (Computer Numerical Control) machines designed and manufactured in Minnesota, USA. CNC precision ensures dimensional accuracy within thousandths of an inch, providing consistent internal volume (critical for predictable sealed enclosure performance) and perfect panel fit for airtight construction.
Pro-Line X employs proprietary Dado interlocking joinery where panel edges feature precision-machined grooves and tongues that mechanically interlock. This technique provides dramatically superior joint strength compared to simple butt joints, creating mechanical interlocking that resists separation even before adhesive curing. Combined with wood glue, Dado joints create enclosure structures capable of withstanding the internal pressures generated during high-output operation for years of reliable service.
Heavy Internal Bracing with Rounded Edges
The enclosure incorporates heavy internal bracing—additional MDF strips connecting opposing panels to stiffen the structure and prevent panel flexing. The bracing features rounded edges (rather than sharp 90-degree corners) to minimize internal diffraction effects and reduce standing wave formation that could create frequency response irregularities.
Recessed Side Panels with Gray Trunk Liner
A distinctive Performance Series feature is the recessed side panel design where side panels are inset rather than flush with the enclosure perimeter. This design enhances structural integrity (the recessed panels create mechanical interlocking with adjacent panels) while providing an aesthetic distinction. The recessed panels are covered with stylish gray trunk liner material rather than conventional black carpet, offering a modern appearance that differentiates the Performance Series from generic black-carpeted alternatives.
Premium Terminal Cup and Rounded Edges
A premium terminal cup is installed in the rear panel, providing secure amplifier connection points accepting banana plugs, spade connectors, or bare wire. The enclosure features rounded exterior edges on corners and bracing, providing a sleek modern aesthetic while eliminating sharp edges that could snag carpet or create safety concerns during installation.
📊 Complete System Specifications 📊
| ARC AUDIO X2 V2 12" SUBWOOFER SPECIFICATIONS | |
|---|---|
| Model Designation | ARC Audio X2 v2 12" (Version 2) |
| Product Series | X2 Series (ARC Audio Level 1 Tier) |
| Subwoofer Size | 12 Inches (305mm) |
| Power Handling (RMS) | 250 Watts RMS (Continuous, 10+ Hour Validated) |
| Power Handling (Peak) | 500 Watts Peak |
| Linear Excursion (Xmax) | 13.5mm (One-Way) |
| Voice Coil Diameter | 2.0 Inches (51mm) |
| Voice Coil Material | High-Temperature Copper-Coated Aluminum, Anodized Black |
| Voice Coil Former | Kapton Electrical Isolator (Polyimide Film) |
| Voice Coil Configuration | Dual 2-Ohm (D2) or Dual 4-Ohm (D4) - Specify at Purchase |
| Impedance Options | D2: 1Ω (parallel) / 4Ω (series) | D4: 2Ω (parallel) / 8Ω (series) |
| Motor Design | Double-Stacked Magnets, FEA Optimized |
| Cone Material | Reinforced Pulp Paper with Moisture-Resistant Coating |
| Surround Material | Large-Diameter Rubber (Long-Term Reliability) |
| Spider Type | High-Roll Conex Spider with Woven Tinsel Leads |
| Basket Type | Proprietary Four-Spoke Stamped Steel, Double-Compound Curve |
| Cooling Technology | Eight Integrated Basket Vents + T-Yoke Central Vent |
| Mounting Depth | Specification Not Published (Fits Performance Series 6.5" Depth Capacity) |
| Recommended Sealed Volume | 0.8-1.25 Cu.Ft. (1.1 Cu.Ft. Optimal - This System) |
| Manufacturer | ARC Audio (Manufactured in Domestic Market) |
| Condition | NEW (Current Production) |
| PRO-LINE X PERFORMANCE SERIES P12-S SEALED ENCLOSURE | |
|---|---|
| Manufacturer | Pro-Line X (Vacaville, California, USA) |
| Series | Performance Series (Value-Optimized Universal Design) |
| Model Number | P12-S II (Single 12 Sealed) |
| Enclosure Type | Sealed (No Port) |
| Optimized For | Mainstream 12" Subwoofers (Universal Compatibility) |
| External Dimensions | 19" Width × 14" Height × 11" Depth |
| Net Internal Volume | 1.1 Cubic Feet (After Displacement & Bracing) - This System Config |
| Construction Material | 3/4" (19mm) Premium MDF (Oregon, USA-Sourced) |
| Joinery Method | Proprietary Dado Interlocking Joints |
| Internal Bracing | Heavy Bracing with Rounded Edges |
| Cutting Method | ShopSabre CNC Precision Cutting (Minnesota-Manufactured Equipment) |
| Design Process | CAD (Computer-Aided Design) Optimized |
| Woofer Depth Capacity | 6.5 Inches |
| Mounting Hole Diameter | 11.13 Inches |
| Terminal Hardware | Premium Terminal Cup |
| Side Panel Treatment | Recessed Design with Gray Trunk Liner |
| Edge Treatment | Rounded Corners and Edges (Modern Aesthetic) |
| Exterior Finish | Professional Carpet + Gray Trunk Liner Accents |
| Manufacturing Location | Handcrafted in Vacaville, California, USA |
| Warranty | 1 Year Against Internal Leaking / Joint Failure |
| COMPLETE SYSTEM DETAILS | |
|---|---|
| System Configuration | ARC Audio X2 v2 12" Pre-Installed in Pro-Line X P12-S Sealed Enclosure |
| Assembly Status | Fully Assembled, Wired, Ready for Amplifier Connection |
| Internal Wiring | Subwoofer Wired to Terminal Cup (Professional Installation) |
| Condition | NEW (Current Production - Both Components) |
| Total System Dimensions | 19" W × 14" H × 11" D (Compact Sealed Design) |
| Enclosure Volume | 1.1 Cu.Ft. Net Internal (Sealed, Optimized for X2 v2) |
| Country of Origin | USA Manufacturing (Both Components - ARC Audio + Pro-Line X) |
| Manufacturer Warranties | ARC Audio (Subwoofer) + Pro-Line X (Enclosure) - Contact Audio Intensity |
| Recommended Amplifier Power | 200-300W RMS @ Final System Impedance (1Ω, 2Ω, 4Ω, or 8Ω) |
| Target Applications | Sound Quality Priority, Compact Installations, Accurate Bass Reproduction |
⚠️ VOICE COIL CONFIGURATION REQUIRED:
The ARC Audio X2 v2 12" is available in Dual 2-Ohm (D2) or Dual 4-Ohm (D4) voice coil configurations. You MUST specify which impedance you require at purchase. Voice coil impedance determines final system impedance options (D2: 1Ω parallel / 4Ω series; D4: 2Ω parallel / 8Ω series) and must match your amplifier's impedance stability. If uncertain, contact Audio Intensity's technical team BEFORE purchase with your amplifier's make/model for impedance matching consultation.
🔊 Sealed vs. Ported: Understanding Enclosure Design Philosophy 🔊
Understanding why this ARC Audio system employs a sealed enclosure rather than the ported design featured in the DC Audio system (Product 49) requires examining the fundamental tradeoffs between these enclosure architectures and identifying which applications benefit from each approach.
| Characteristic | Sealed Enclosure (ARC Audio System) |
Ported Enclosure (DC Audio System) |
|---|---|---|
| Transient Response | Excellent - Tight, Fast, Accurate | Good - Slightly Slower Below Tuning |
| Low-Frequency Extension | Good (30-35 Hz Usable) | Excellent (25-30 Hz with 34 Hz Tuning) |
| Power Handling | Maximum Safety Margins | Good with Subsonic Filtering |
| Enclosure Size | Compact (19×14×11" - 1.1 cu.ft.) | Larger (29×15×13" - 1.75 cu.ft.) |
| Installation Complexity | Simple (No Port Clearance) | Moderate (Port Clearance Required) |
| Frequency Response | Smooth, Gradual Rolloff | Peak at Tuning, Rapid Rolloff Below |
| Subsonic Filtering | Optional (Natural Protection) | Highly Recommended (Prevent Damage) |
| Maximum SPL | High | Higher (Port Augmentation) |
| Musical Accuracy | Excellent (Neutral Response) | Good (Tuning-Dependent Character) |
| Group Delay | Minimal (Fast Transients) | Higher Near Tuning Frequency |
When to Choose Sealed (ARC Audio System):
Sealed Enclosure Ideal Applications:
- Sound Quality Priority: Enthusiasts valuing bass accuracy, transient speed, and musical detail preservation over maximum SPL capabilities.
- Compact Installation Requirements: Vehicles with limited cargo space where the 19×14×11" sealed dimensions preserve cargo capacity that larger ported designs would consume.
- Musical Genre Versatility: Rock, metal, jazz, classical, pop, and acoustic genres where rapid bass transients and tight, controlled bass response are critical.
- Simplified Installation: Installations without subsonic filtering capability (sealed designs provide natural over-excursion protection) or installations where port clearance requirements complicate placement.
- Maximum Power Handling: Applications where the subwoofer will be driven near its power handling limits—sealed enclosures' natural damping provides maximum thermal and mechanical safety margins.
- Equalization Flexibility: Installations using DSP or parametric EQ to shape bass response—sealed enclosures' smooth rolloff allows predictable equalization without the phase complications ported designs introduce.
When to Choose Ported (DC Audio System - Product 49):
- Maximum Output Priority: Enthusiasts seeking the loudest possible bass output, particularly in SPL competition, demo vehicles, or installations where bass volume takes precedence over absolute accuracy.
- Deep Bass Extension: Applications demanding maximum low-frequency extension (movie soundtracks, electronic music, hip-hop, rap) where fundamental bass content extends below 30 Hz.
- Cargo Space Available: Vehicles with sufficient cargo area to accommodate larger ported enclosures (typically 1.5-2.5+ cu.ft. for 12" drivers) without compromising utility.
- Amplifier Resources Available: Installations with high-quality amplifiers featuring subsonic filtering (essential for protecting ported systems from over-excursion below tuning frequency).
This ARC Audio sealed system prioritizes: Sound quality, transient accuracy, compact dimensions, installation simplicity, and maximum power handling safety margins—making it the optimal choice for enthusiasts who refuse to compromise bass precision for bass pressure, who value musical accuracy over maximum volume, and who require a complete turnkey solution fitting the largest possible range of vehicle applications.
🔌 Amplifier Matching and System Design 🔌
Maximizing the ARC Audio X2 v2 sealed system's performance requires appropriate amplifier selection matched to the 250W RMS power handling and your selected voice coil impedance configuration.
Recommended Amplifier Power:
Amplifier Power Matching Guidelines:
- Conservative Matching (150-200W RMS): Suitable for sound quality-focused installations prioritizing accuracy and longevity over maximum output. Provides excellent bass response while operating the X2 v2 well within thermal and mechanical limits. Recommended for audiophile applications, daily-driver vehicles, or first-time system builders prioritizing reliability.
- Optimal Matching (200-250W RMS): Fully exploits the X2 v2's 250W RMS power handling while maintaining appropriate headroom for dynamic peaks. Recommended for most installations seeking balanced performance maximization. Quality 200-250W monoblock amplifiers from reputable manufacturers (Rockford Fosgate, Kicker, Alpine, JL Audio, ARC Audio X2 amplifiers) available at $120-200 price points.
- Aggressive Matching (250-300W RMS): Provides additional headroom for competition-level sound quality or installations using premium amplifiers with conservative power ratings. Suitable for experienced installers understanding thermal management and monitoring requirements. Only recommended with high-quality amplifiers featuring robust power delivery and comprehensive protection circuitry.
Impedance Configuration Strategy:
- Dual 2-Ohm (D2) Wired in Parallel = 1-Ohm Final: Maximizes amplifier output from 1-ohm-stable designs. Most modern class-D monoblock amplifiers deliver maximum rated power at 1 ohm. Verify amplifier is explicitly rated 1-ohm stable—not all amplifiers support 1-ohm operation.
- Dual 4-Ohm (D4) Wired in Parallel = 2-Ohm Final: RECOMMENDED for most installations. Virtually all modern amplifiers are 2-ohm stable, and many deliver 75-90% of 1-ohm power at 2 ohms with improved efficiency and thermal stability. Best balance of power output and amplifier compatibility.
- Series Wiring (D2 → 4Ω / D4 → 8Ω): Compatible with older amplifiers or installations requiring higher impedance loads. Power output reduced compared to parallel wiring (typically 40-60% of 1-ohm rated power for 4-ohm loads) but provides maximum amplifier compatibility.
Essential Amplifier Features for Sealed Systems:
- Variable Low-Pass Crossover: Essential for integrating subwoofer output with full-range speakers. Adjustable crossover frequency (typically 50-120 Hz range) allows precise blending with main speakers' low-frequency rolloff.
- Bass Boost EQ (Optional): Useful for compensating sealed enclosure's natural rolloff below resonance frequency. Use conservatively—excessive boost increases distortion and reduces power handling margins.
- Phase Control: Allows phase adjustment (0°-180°) for optimal integration with vehicle acoustics and front-stage speakers.
- Remote Level Control: Convenient for adjusting subwoofer output from driver's seat without accessing amplifier gain controls.
- Subsonic Filter (Less Critical for Sealed): While sealed enclosures provide natural over-excursion protection (unlike ported designs requiring aggressive subsonic filtering), a gentle subsonic filter (15-20 Hz, 12 dB/octave) can prevent wasted amplifier power on inaudible frequencies.
📐 Installation Applications and Dimensional Advantages 📐
The ARC Audio sealed system's compact 19" × 14" × 11" dimensions provide exceptional installation versatility, fitting applications where larger ported designs would be impractical or impossible.
🚗 Sedan Trunk Installations
Ideal for compact, mid-size, and full-size sedans where trunk depth accommodates 11" enclosure depth while preserving significant cargo space. Install facing rearward (subwoofer firing toward rear seats) for optimal cabin coupling. The 19×14×11" footprint leaves ample space for spare tire access, amplifier mounting, and grocery/luggage storage.
🚐 SUV Cargo Area Installations
Perfect for compact and mid-size SUVs requiring bass reinforcement without consuming entire cargo capacity. Position against rear seats facing rearward, or against rear hatch facing forward. The 14" height allows installation below window line in most SUVs, preserving rearward visibility and maintaining factory aesthetics.
🚙 Truck Behind-Seat Installations
Suitable for extended-cab and crew-cab pickup trucks with behind-seat mounting locations. The 14" height fits most behind-seat spaces, while 19" width accommodates side-to-side placement without interfering with seat operation. Sealed design eliminates port clearance concerns common in tight truck cab spaces.
🎵 Sound Quality Competition Installations
Optimized for sound quality competition and audiophile installations prioritizing bass accuracy over maximum SPL. Sealed enclosure's transient accuracy, minimal group delay, and neutral frequency response align perfectly with sound quality judging criteria. Compact dimensions allow strategic positioning for optimal frequency response and integration with front-stage speakers.
Dimensional Comparison vs. Ported Alternative (Product 49):
- Width: 19" (ARC sealed) vs. 29" (DC ported) = 34% smaller width - fits narrower cargo spaces
- Height: 14" (ARC sealed) vs. 15" (DC ported) = 7% lower profile - maintains visibility in SUVs
- Depth: 11" (ARC sealed) vs. 13" (DC ported) = 15% shallower depth - preserves cargo depth
- Overall Footprint: ARC sealed = 2,926 cubic inches / DC ported = 5,655 cubic inches = ARC occupies 48% less cargo space
The ARC Audio sealed system's compact dimensions make it the optimal choice for installations where cargo space retention is critical, where vehicle dimensions restrict enclosure sizing, or where the installation location (behind seats, under shelves) imposes dimensional constraints that larger ported alternatives cannot satisfy.
❓ Frequently Asked Questions ❓
Q: Is this complete system ready for immediate installation, or do I need to wire components?
This is a complete turnkey system. The ARC Audio X2 v2 12" subwoofer is pre-installed in the Pro-Line X sealed enclosure with internal wiring already connected from subwoofer terminals to the rear terminal cup. Simply connect your amplifier's speaker wires to the terminal cup, secure the enclosure in your vehicle, and begin enjoying bass. No subwoofer mounting, internal wiring, or enclosure assembly required.
Q: Should I choose Dual 2-Ohm (D2) or Dual 4-Ohm (D4) voice coil configuration?
For most installations, choose Dual 4-Ohm (D4). Wired in parallel, D4 provides 2-ohm final impedance compatible with virtually all modern amplifiers, delivering 75-90% of maximum amplifier power with excellent efficiency and thermal stability. Choose Dual 2-Ohm (D2) only if your amplifier is explicitly rated 1-ohm stable AND you want absolute maximum power output (D2 wired in parallel = 1Ω final). If uncertain, contact Audio Intensity with your amplifier's make/model for specific impedance matching consultation.
Q: Why choose this sealed system over the DC Audio ported system (Product 49)?
Choose sealed (ARC Audio) if you prioritize: (1) Bass accuracy and transient speed over maximum volume; (2) Compact dimensions (48% smaller footprint); (3) Sound quality, musical detail, and precise bass reproduction; (4) Simplified installation without port clearance concerns; (5) Musical genres emphasizing bass precision (rock, metal, jazz, classical, pop). Choose ported (DC Audio) if you prioritize: (1) Maximum SPL and deep bass extension (34 Hz tuning); (2) Electronic music, hip-hop, rap, movie soundtracks with deep content; (3) Competition SPL or demo vehicle applications; (4) Cargo space available for larger enclosure (29×15×13"). Both systems excel—the choice depends on whether you value bass precision or bass pressure.
Q: What amplifier power do I need for this system?
Recommended: 200-250 watts RMS at your final system impedance (2Ω recommended with D4 parallel wiring, or 1Ω with D2 parallel wiring). For sound quality-focused installations, 150-200W RMS provides excellent performance with maximum longevity. Quality monoblock amplifiers in this power range are available from Rockford Fosgate, Kicker, Alpine, JL Audio, and ARC Audio's own X2 amplifier series at $120-200 price points. Ensure amplifier is stable at your selected impedance (2Ω or 1Ω)—verify specifications explicitly state operation at target impedance.
Q: Will this sealed system produce enough bass compared to larger ported systems?
Absolutely—but with different characteristics. Sealed systems deliver bass that sounds tight, controlled, fast, and effortless. The ARC Audio X2 v2's 250W RMS power handling, 13.5mm Xmax, and efficient FEA-optimized motor produce impressive output levels (typically 105-110 dB SPL at 1 meter with 250W input) that satisfy most enthusiasts. You'll experience quality bass (accurate, detailed, musical) rather than quantity bass (maximum SPL regardless of accuracy). If your listening priorities are rock, metal, jazz, classical, or any genre where bass precision matters, sealed delivers superior musical satisfaction despite measuring slightly lower SPL than equivalent ported systems. If you attend SPL competitions or require maximum chest-thumping impact for electronic music, ported alternatives provide higher peak output.
Q: How does the ARC Audio X2 v2 compare to ARC's higher-tier subwoofers (ARC Series, A-Series)?
The X2 Series represents ARC Audio's Level 1 entry-level tier, balancing performance and affordability. The ARC Series (previously documented Products 38-41) represents mid-tier performance with increased power handling (300-400W RMS for 12" models), enhanced motor assemblies, and premium materials. The A-Series (shallow-mount, Products 44-45) represents premium shallow-mount engineering with exotic materials and advanced technologies. Hierarchy: X2 Series (entry: 250W RMS, mainstream applications) → ARC Series (mid-tier: 300-400W RMS, enhanced performance) → A-Series (premium: specialized applications). The X2 v2 provides excellent performance for enthusiasts entering the ARC Audio ecosystem, with clear upgrade paths if system evolution demands higher capabilities. All ARC Audio products share the company's core engineering philosophy—honest specifications, quality construction, and audiophile-grade sound quality regardless of price tier.
Q: Does sealed design require equalization to extend low-frequency response?
Not required but can enhance performance if desired. The X2 v2 in 1.1 cu.ft. sealed provides usable output into the 30-35 Hz region without equalization—sufficient for most musical content and movie soundtracks. If your vehicle includes factory DSP, aftermarket DSP (AudioControl, JL Audio, Arc Audio PS8), or parametric EQ, you can apply gentle low-frequency boost (3-6 dB below 40 Hz) to extend perceived bass response. Sealed enclosures' smooth, gradual rolloff (12 dB/octave) allows predictable equalization without the phase complications and group delay increases that ported designs experience when equalized. Important: Equalization increases excursion requirements and power consumption—reduce amplifier power slightly when applying aggressive EQ to prevent over-excursion damage.
🎯 Experience ARC Audio Engineering Excellence 🎯
The ARC Audio X2 v2 12" Sealed Subwoofer System represents the perfect convergence of American precision engineering and turnkey installation convenience: audiophile-grade subwoofer technology + USA-manufactured sealed enclosure optimization = complete bass solution delivering accuracy that honors the music rather than overwhelming it.
This is NEW current production from two manufacturers committed to domestic excellence—ARC Audio's engineering heritage spanning decades of sound quality competition dominance + Pro-Line X's precision enclosure fabrication in Vacaville, California. You receive manufacturer-backed warranties, current product support, and engineering representing ARC Audio's refusal to compromise fundamental performance regardless of product tier.
Whether you're building your first serious sound quality system, upgrading from factory audio that disappoints, or seeking compact sealed bass reinforcement that preserves cargo space while delivering precise, controlled low-frequency reproduction, this complete ready-to-install package eliminates traditional installation barriers—delivering instead a solution that transforms your vehicle's audio system with bass that sounds right, not just loud.
Contact Audio Intensity for voice coil impedance selection consultation, amplifier matching recommendations, installation guidance, or questions about sealed vs. ported design philosophy. Our technical team understands that choosing between accuracy and output isn't compromise—it's priority alignment.
🎵 ARC AUDIO X2 V2: WHERE PRECISION ENGINEERING MEETS MUSICAL TRUTH 🎵
⚠️ CRITICAL INSTALLATION REQUIREMENTS:
- NEW Condition: Complete system is NEW current production—ARC Audio X2 v2 subwoofer (Version 2 engineering) + Pro-Line X Performance Series sealed enclosure (USA-manufactured). Expect pristine condition, complete packaging protection, and full manufacturer warranty coverage from both ARC Audio and Pro-Line X (contact Audio Intensity for warranty terms).
- Voice Coil Configuration MANDATORY: You MUST specify Dual 2-Ohm (D2) or Dual 4-Ohm (D4) at purchase. This specification cannot be changed after purchase without replacing the subwoofer. D4 RECOMMENDED for most installations (2Ω parallel wiring, universal amplifier compatibility). Contact Audio Intensity BEFORE purchase if uncertain about impedance selection.
- Amplifier Requirements: Requires dedicated subwoofer amplifier—NOT full-range amplifier or factory head unit power. Recommended: 200-250W RMS at final system impedance. Amplifier MUST be stable at selected impedance (2Ω recommended with D4, or 1Ω with D2). Never connect subwoofers to head unit speaker outputs—damage will result.
- Secure Enclosure Mounting: Sealed enclosure weighs approximately 35-40 pounds assembled. Unsecured enclosures become dangerous projectiles during emergency braking or collision. Use L-brackets, heavy-duty bungee cords, ratchet straps, or mounting platforms to prevent movement during vehicle operation. Secure mounting is safety-critical.
- Sealed Enclosure Integrity: Sealed performance depends on airtight construction. Inspect terminal cup connections and any access panels for proper sealing during installation. Air leaks degrade sealed enclosure performance by eliminating acoustic suspension benefits. If modifications are required (additional terminal installations, etc.), seal all penetrations with appropriate sealant.
- Compact Dimensions Advantage: 19×14×11" dimensions fit most sedan trunks, SUV cargo areas, and truck behind-seat spaces. Measure your installation location BEFORE purchase (allow 20"W × 15"H × 12"D minimum clearance for installation maneuvering and ventilation). Confirm amplifier mounting location won't interfere with enclosure placement.
- Break-In Period: New subwoofers require mechanical break-in (10-20 hours at moderate levels, 50-75% maximum output) as suspension components reach optimal compliance. Avoid sustained maximum-output operation during break-in. After break-in, bass response smooths and low-frequency extension improves slightly.
- Electrical System Requirements: 200-250W amplifiers draw 18-35A during peak output. Ensure installation includes proper gauge power wire (minimum 8-gauge for runs under 15 feet), appropriate fusing (25-40A typical), solid chassis grounding, and quality shielded RCA cables. Undersized wiring causes voltage drop reducing amplifier output.
🎵 ARC AUDIO X2 V2 12" SEALED SYSTEM 🎵
250W RMS Precision Subwoofer • 1.1 Cu.Ft. USA-Crafted Sealed Enclosure • Complete Ready-to-Install Package
Audiophile Engineering • Turnkey Convenience • Compact Dimensions
ARC Audio (Domestic Manufacturing) + Pro-Line X (Vacaville, CA) = 100% American Excellence
Available Exclusively at Audio Intensity • Contact for Voice Coil Selection, Amplifier Recommendations & Sealed vs. Ported Consultation
