Arc Audio publishes a sealed range of 0.65 to 1.0 cubic feet for the X2V2 10. This cabinet sits at 0.70, near the lower end, which raises system Qtc and trades a little anechoic extension for more midbass punch and tighter control. In a vehicle, cabin gain below 80 Hz restores most of what the smaller box gives up on paper. If you want the more relaxed alignment, a larger cabinet is the way to get it.

Arc Audio X2 10 + Matching Proline X Enclosure Bundle, Box 50% Off - Proline X Subwoofer Enclosures for car audio systems

A gray carpeted car audio subwoofer box with a large gray speaker cone, shown at a three-quarter angle on a white background.

Proline X

Proline X P10-S W | Single 10" Sealed Wedge Subwoofer Enclosure | Loaded with Arc Audio X2V2 10

Q: What comes in this system?

A Proline X P10-S W sealed wedge enclosure at 0.70 cubic feet net, with the Arc Audio X2V2 10 already mounted, gasketed and sealed against the baffle in your chosen D2 or D4 configuration. The driver is prewired with 12 gauge OFC to a recessed Proline X terminal cup and polyfill is installed. Choose dark gray trunkliner or plush black carpet above. An amplifier, power wire and RCA cables are not included.

Q: Should I choose D2 or D4?

Whichever matches the load your amplifier is stable at. D2 wired parallel gives a 1 ohm final load or 4 ohms in series. D4 wired parallel gives 2 ohms or 8 ohms in series. Most single subwoofer builds run the D4 parallel at 2 ohms. Decide before ordering, because the driver is installed and the cabinet is sealed before it ships.

Q: Do I need an amplifier, and how much power?

Yes. This is a passive enclosure with no amplification built in. Target 150 to 200 watts RMS at your final impedance from a Class D monoblock. The X2V2 10 is rated at 200 watts RMS continuous, so stay in that range rather than chasing the 400 watt peak figure. A clean amplifier at the rated power will outperform a clipping one at double it. If you are keeping the factory head unit you will also need a line output converter or a DSP with speaker level inputs.

Q: Which way round does the wedge mount?

Shallow edge up, deep edge on the floor, leaning back into the seat back or bulkhead. Mounted that way the cabinet occupies space that was already awkward and leaves the flat cargo floor usable. Mounted the other way round it stands proud and you lose the advantage the shape exists to give you.

Q: How much space does this need?

14.5 inches wide, 13 inches tall, and 13 inches deep at the base tapering to 8.5 at the top. That is a genuinely compact footprint for a 10 inch sealed system and it fits compact hatches and small SUV cargo areas where the 12 inch wedge would be tight. Measure the width across your seat back, because the wedge only works properly if the full deep edge sits flat on the floor.

Q: What is the warranty on this system?

The enclosure carries a 1 year limited warranty on craftsmanship and materials, which is the standard across the Performance and Performance Optimized lines. Micro Series and Professional Series enclosures carry 2 years. The Arc Audio X2V2 10 carries its own 1 year manufacturer warranty separately, handled through Arc Audio.

Q: How should the enclosure be secured in the vehicle?

Anchor it properly. A loaded 10 in a 0.70 cubic foot cabinet carries enough mass to move under hard braking on a carpeted floor. Use factory anchor points or through bolt to the floor pan rather than relying on a single strap over the top. This is a safety consideration in a hard stop, not a rattle prevention measure, and it is worth doing at install time instead of after something shifts.

SKU: P10-S W ARC X2V2 D4 G

QUICK SPECS

Best For: Behind-seat and bulkhead installs where a square box wastes floor
Configuration: Single 10" Sealed Wedge, Performance Series, loaded
Volume: 0.70 ft³ Net
Tuning: N/A, Sealed
Sonic Character: Warm, punchy, midbass forward

Proline X Enclosure: Built in Tennessee CNC-cut Langboard Elite 3/4" MDF, V-groove + dado joinery, recessed ABS/Carbon Fiber terminal cup.

Driver + Enclosure: Matched and Pre-Wired Subwoofer pre-installed and wired to the correct impedance. Connect your amplifier and it's ready to run.

Shipping Included No freight charges at checkout on orders to the lower 48. Alaska, Hawaii, and international orders are quoted live rates at checkout.

$ 359.99

Impedance

In Stock and Ready to Ship

Financing available. Choose Shop Pay Installments at checkout.

What's Included

Proline X P10-S W sealed wedge enclosure, single 10 inch, 0.70 cu ft net
Arc Audio X2V2 10 subwoofer pre-installed in your chosen D2 or D4 configuration
Pre-wired 12 gauge OFC speaker wire to the terminal cup
Recessed Proline X ABS and carbon fiber terminal cup with stainless hardware and copper ring terminals
Polyfill installed and matched to this volume
Your choice of dark gray trunkliner or plush black carpet

Amplifier, power wire and RCA cables are not included.

Proline X P10-S W | Single 10" Sealed Wedge Subwoofer Enclosure | Loaded with Arc Audio X2V2 10

Enclosure Type Sealed

External Dimensions 14.5" (W) x 13" (H) x 8.5" top / 13" bottom (D)

Net Volume 0.70 cu ft

Tuning Frequency N/A - Sealed

Cutout Diameter 9.25"

Front Panel Thickness 0.75" Single Baffle

Max Mounting Depth 8"

INSTALLER'S TAKE

Mount it shallow edge up. The 8.5 inch face goes at the top, the 13 inch face sits on the floor, and the cabinet leans back into the seat or bulkhead. Fitted the other way round it stands proud, wastes the space it exists to save, and puts the baffle back parallel with the glass. Obvious on paper, less obvious in a dark cargo area at the end of a job.

This is the smaller of the two Performance wedges at 14.5 inches wide, which makes it a genuinely easy fit in a compact hatch or a small SUV cargo area where the 12 inch version would be tight. Worth measuring the width across your seat back rather than assuming, because the wedge only works if the full deep edge sits flat on the floor.

Secure it before you leave. A loaded 10 in a 0.70 cubic foot cabinet still carries enough mass to move under hard braking on a carpeted floor. Tie it to a factory anchor point or through bolt to the floor pan. Decide your impedance before ordering as well, since the driver is installed and the cabinet sealed before it ships.

Product Details

Proline X P10-S W Sealed Wedge, Loaded

Cut and tuned for the Arc Audio X2V2 10

V-Groove and Dado Langboard Elite MDF 0.70 cu ft Net Fits Arc Audio X2V2 10

0.70cu ft net

0.956system Qtc

39 HzF3 rolloff

5.91 inX2V2 10 mounting depth

Built Around the Arc Audio X2V2 10

Nothing about this box is generic. Every layer is cut to the X2V2 10's published sealed target, with the baffle bored to the X2V2 10's 8.98 in cutout, and clearance cut for its 5.91 in mounting depth.

The X2V2 10 carries a published Fs of 26.24 Hz, Qts of 0.519 and Vas of 47.44 litres, and an EBP of 45, which puts it in sealed enclosure territory. We ran the alignment math on that data and built the box to land where it belongs.

Net Volume, Not Gross

We build this cabinet at 0.70 cubic feet net, against a published recommendation of 0.65 to 1.0 cu ft (optimal 0.75). The volume quoted is true net internal airspace, measured after the walls, bracing and driver displacement are accounted for.

True net, not marketing net. Internal volume is calculated by summing each CNC cut layer's opening, not estimated from external dimensions minus wall thickness.

Proline X Performance Series Construction

This enclosure is cut with V-groove and dado joinery on our ShopSabre routers from Langboard Elite 3/4 inch MDF, a dense 48.5 lb/ft³ board with a 200 psi internal bond and 410,000 psi MOE. The panels are V-grooved and folded on the seam, then dadoed where the internal bracing lands, so every joint is a mechanical lock rather than a glue line under load.

Pre-Wired Terminal Cup

Proline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, pre-wired internally with 12 gauge OFC. No CCA anywhere in the build.

Damped and Finished

Polyfill is pre-installed to smooth the in box response, and the shell is wrapped in plush black carpet. Built in Tullahoma, Tennessee.

Enclosure Only or Loaded

Order the enclosure bare and mount your own X2V2 10, or order it loaded and we mount the driver, dress the wiring and ship it ready to bolt in.

Sealed Enclosure Performance: Pre-Calculated

Using the published Thiele Small parameters for the Arc Audio X2V2 10, here is the predicted Qtc, system resonance (Fc) and F3 rolloff for this enclosure. Calculated with the same formulas as the Audio Intensity Sealed Box Calculator.

Arc Audio X2V2 10 D2 | Qts 0.519 | Fs 26.24 Hz | Vas 47.44 L

Enclosure Size	Qtc	Fc	F3
0.70 cu ft as built	0.956	48.3 Hz	38.8 Hz

Arc Audio X2V2 10 Frequency Response | Sealed, 0.70 cu ft

0.70 cu ft (Qtc 0.956) -3dB reference

Note on coil choice: The figures above are the D2 set. The D4 X2V2 10 carries Qts 0.615 and Vas 43.24 litres, and a different Fs of 28.26 Hz, which in this same 0.70 cubic foot volume lands at Qtc 1.097, Fc 50.4 Hz and F3 38.2 Hz. Worth accounting for if you are choosing between the two. Run your own numbers in the Sealed Box Calculator.

Cut for the Driver, Not the Catalog

Select your configuration above. This enclosure ships free to the lower 48 with a 1 year limited warranty, built one at a time in Tullahoma, Tennessee. Ordered loaded, the X2V2 10 carries its own 1 year manufacturer warranty through authorized dealers.

Enclosure Specifications

Enclosure	Proline X P10-S W, Performance Series sealed wedge
Driver	Arc Audio X2V2 10, pre-installed
Voice Coil	Dual, available D2 or D4
Material	Langboard Elite MDF, 3/4" (18mm)
Enclosure Type	Sealed
Net Internal Volume	0.70 ft³ Net
Tuning Frequency	N/A: Sealed
External Width	14.5"
External Height	13"
External Depth (Top)	8.5": shallow end
External Depth (Bottom)	13": deep end
Wedge Angle	~20° taper
Subwoofer Cutout	9.25"
Max Mounting Depth	8"
Front Panel Thickness	0.75" Single Baffle
Finish	Dark Gray Trunkliner or Plush Black
Terminal Cup	Proline X ABS/Carbon Fiber, recessed mount, stainless hardware, copper ring terminals
Wiring	Pre-wired 12g OFC speaker wire
Polyfill	Installed
Built	Tullahoma, Tennessee
Warranty	1-Year Limited on the enclosure

Performance Graphs

Woofer Details

The Arc Audio X2V2 10 is the 10 inch version of the same platform as the X2V2 12: 200 watts RMS continuous, 400 watts peak, 14.8mm of one-way linear Xmax, and a 2 inch copper coated aluminium voice coil on a Kapton former anodised black for radiative heat dissipation. Arc rates it conservatively. Their testing philosophy is to double test power after each successful round until something actually fails, so the 200 watt figure reflects sustained thermal capacity rather than a peak number. The four spoke stamped steel basket carries eight integrated motor cooling vents plus a T-yoke centre vent, and the motor uses double stacked magnets for efficiency. Construction is built for daily use: a moisture coated reinforced pulp cone, a large diameter rubber surround rather than foam, and a high roll Conex spider with the tinsel leads woven directly into it, which removes the bare lead designs that cause cone slap and shorts over time. Available in dual 2 ohm and dual 4 ohm, with sealed volume recommended between 0.65 and 1.0 cubic feet.

Brand + Model	Arc Audio X2V2 10
Size	10"
RMS Power	200W
Peak Power	400W
Voice Coil Config	Dual 2 ohm or Dual 4 ohm
Voice Coil Diameter	2"
Xmax	14.8mm one-way linear
Sensitivity	85 dB
Frequency Response	30–500 Hz
Cone Area (Sd)	346 cm²
Mms	129.05 g
Recommended Sealed Volume	0.65 to 1.0 ft³
Driver Warranty	1-Year through Arc Audio

Why This Combo Works

Arc Audio X2V2 10 in a Proline X 0.70 Cubic Foot Sealed Wedge

Arc Audio publishes a sealed range of 0.65 to 1.0 cubic feet for the X2V2 10. This enclosure is 0.70 cubic feet net, near the lower end of that range. A smaller sealed box raises system Qtc, which trades some anechoic extension for more midbass punch and tighter transient control. In a vehicle, where cabin gain already reinforces the bottom end below 80 Hz, that trade usually reads as more impactful rather than less extended.

The X2V2 10 is rated at 200 watts RMS and 400 watts peak, with 14.8mm of one-way linear Xmax from a 2 inch copper coated aluminium voice coil. Arc rates conservatively: their test philosophy is to double test power after each successful round until something actually fails, so the 200 watt figure reflects sustained thermal capacity rather than a peak dressed up as continuous.

The wedge shape is what makes it liveable. A square 0.70 cubic foot 10 inch cabinet eats a rectangle of cargo floor. This one leans against a seat back or bulkhead, occupies the space that was already awkward, and leaves the flat floor usable. The taper also keeps the baffle out of parallel with the rear glass, which helps with standing waves in a hatchback or SUV.

For amplifier power, target 150 to 200W RMS at your wired impedance. D2 wired parallel gives 1 ohm, D4 wired parallel gives 2 ohms. Match to the 200 watt RMS rating rather than the 400 watt peak, and confirm your amplifier is stable at the load you intend to run.

Materials

Material

Built From a Spec Sheet, Not a Sales Sheet

Every Proline X Performance Series enclosure is CNC-cut from Langboard Elite MDF, 3/4" (18mm) panels produced to published mill specifications. Most enclosure manufacturers source generic MDF without published data. We can tell you the internal bond rating, the modulus of elasticity, the modulus of rupture, and the face and edge screw holding strength for every panel in this enclosure, because we chose the material based on those numbers, not on price or availability.

Langboard Elite is produced in the United States. The specifications below are pulled directly from Langboard's published mill data and are verifiable. This is the same panel stock used in our full Proline X lineup.

Specifications

Langboard Elite MDF: Published Mill Data

Property	Value	Why It Matters
Panel Stock	Langboard Elite MDF	Named, verifiable panel source, not generic "high-density MDF"
Thickness	3/4" (18mm)	Industry standard for subwoofer enclosures; panels below this flex under pressure
Density	48.5 lbs/ft³	Higher density = less porosity, better screw retention, reduced resonance
Internal Bond	200 psi	Measures resistance to delamination under sustained internal pressure. The most enclosure-relevant spec on this sheet
Modulus of Rupture (MOR)	4,200 psi	Bending strength before the panel breaks, relevant for larger unsupported baffle spans
Modulus of Elasticity (MOE)	410,000 psi	Stiffness under load; higher MOE means less panel flex under bass pressure, less resonance
Face Screw Holding	325 lbs	How firmly the panel surface holds a screw; critical for baffle joint integrity over time
Edge Screw Holding	250 lbs	Panel edge retention, relevant for every joint that isn't face-to-face

Internal Bond

200 psi: The Number That Actually Matters for Enclosures

The internal bond rating measures how well the MDF panel resists delamination under sustained pressure applied perpendicular to the face. In a subwoofer enclosure, every bass transient generates a pressure pulse that pushes outward on every panel simultaneously. A panel that begins to delaminate internally loses stiffness gradually. The symptoms are slow: a box that starts to sound softer, less defined, less punchy over months of use. 200 psi internal bond is the spec that determines how long this enclosure holds its acoustic integrity under daily use at real power levels.

Stiffness

410,000 psi MOE: Less Flex, Less Resonance

The modulus of elasticity measures panel stiffness, its resistance to bending under load. A stiffer panel flexes less under the pressure generated by a high-excursion driver at volume. Panel flex is a source of acoustic coloration: the panel itself begins to radiate sound at its own resonant frequency, adding distortion to the output. 410,000 psi stiffness combined with V-groove and dado joinery means the panels stay rigid and the bracing controls resonance at the structure level, not the panel level. The bass you hear comes from the driver, not the box.

Screw Holding

325 lb Face / 250 lb Edge: Joints That Stay Locked

Screw holding strength determines how firmly the panel grips a fastener at the face and at the edge. This matters most at the baffle joint, where the front panel meets the side panels and where the driver is mounted. A panel with low screw holding strength allows fasteners to loosen over time under vibration, leading to air gaps at the joint and loss of acoustic seal. 325 lb face screw holding strength means the baffle hardware stays put. Combined with dado joinery and adhesive, the front panel on a Proline X Performance Series enclosure is not going anywhere.

Sourcing

Named Panel Stock: Not "Premium MDF"

The phrase "premium MDF" or "high-density MDF" appears on marketing copy for enclosures across every price point, from $40 to $400. It is not a specification. It is a description with no defined standard. Langboard Elite is a named, sourced, mill-documented product with published data. We name it in our copy because naming it holds us accountable to the spec. You can look up Langboard Elite independently, verify the numbers on this page, and confirm you are getting what we say you are getting. That is the point.

Why Proline X?

Most enclosures are built to a price point. Proline X is built to a spec. Every box starts with published-data MDF, gets CNC-cut to exact internal volume, and is assembled by hand in our Tennessee facility. The difference shows up in the measurements, and in how the box holds up two years into daily use.

CNC-Cut to Spec

Panels are machine-cut on ShopSabre CNC routers and joined with V-groove and dado joinery. Consistent geometry, no hand-cut variance, no gaps at the joints.