Component vs Enclosed Subwoofers: What's the Difference?
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Audiomobile
Audiomobile Encore 4415 15" Subwoofer
SKU: Encore 4415
$ 899.95
$ 999.00
Save
$ 99.05
QUICK SPECS
- Power: 1000W RMS | 4000W Peak (6 dB crest) | Dual 4-Ohm (2 ohm parallel, 8 ohm series)
- Voice Coil: 3 in Dual 4-Ohm | 19mm Xmax | ICAR Intercooled | SMG Motor | Flux-Stabilization Rings
- Sealed Box: 1.25 to 1.8 cu ft | Optimal 1.5 cu ft | Carbon Fiber Cone
- Fitment: Mounting Depth 5.9 in | Cast Aluminum Frame | Free-Air / IB Compatible
Audiomobile Encore 4415 15" Subwoofer
Regular price
$ 899.95
Sale price
$ 899.95
Regular price
$ 999.00
Unit price
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Product Details
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Audiomobile Encore 4415 15 Inch Subwoofer
A 15 inch subwoofer that mounts at 5.9 inches. 1000 watts RMS, 19mm Xmax, carbon fiber cone, ICAR aluminum intercooler, shaped magnetic gap motor, and upper and lower flux-stabilization rings. Where a standard 15 physically cannot fit, the Encore 4415 does.
1000W RMS
19mm Xmax
5.9 in Mounting Depth
Dual 4-Ohm
The Low-Profile 15 That Performs Like a Full-Depth Driver
The Encore 4415 was built around a specific problem: a standard 15 inch subwoofer requires 7 to 10 inches of mounting depth. That rules out a long list of truck cab installs, SUV spare tire wells, and custom builds where the space exists for a 15 inch footprint but not a standard 15 inch depth. At 5.9 inches, the Encore 4415 fits where a conventional 12 inch shallow driver would go, while delivering the cone area and output of a 15.
Audiomobile achieved this through a purpose-engineered motor and cooling system rather than by simply shortening the motor stack and accepting reduced performance. The result is genuine 1000 watt RMS continuous power handling with 19mm of one-way linear Xmax from a driver less than 6 inches deep.
5.9 inMounting Depth
1000WRMS Power
19mmXmax
31 HzResonant Freq
ICAR Intercooler and SuperCool Venting
Standard subwoofer cooling relies on passive heat dissipation from the motor gap and voice coil surface. At 1000 watts continuous from a shallow motor package, that is not enough. The Encore 4415 uses Audiomobile's ICAR aluminum intercooled heatsink and radiator system to actively manage voice coil temperature. The SuperCool motor venting adds forced-air circulation through the motor internals, pulling heat away from the heat sinks which sit in close proximity to the voice coil regardless of cone position.
This system is why the Encore 4415 can sustain 1000 watts continuously where most shallow-mount drivers would fail. The thermal management is the engineering story behind the power rating.
Shaped Magnetic Gap and Flux-Stabilization Rings
The SMG (Shaped Magnetic Gap) motor geometry optimizes magnetic flux distribution across the voice coil winding height, maintaining consistent motor force across the 19mm excursion range. Upper and lower aluminum alloy flux-stabilization rings reduce inductance variation with cone position, which in practice means lower distortion at high excursion and a cleaner, more accurate bass response at all output levels. The voice coil inductance stays consistent rather than rising as the coil moves out of the gap, which preserves transient response and high-frequency rolloff behavior.
Carbon Fiber Cone and Dust Cap
Carbon fiber provides a high stiffness-to-weight ratio that is difficult to match with paper or polypropylene-based cones at 15 inches. Lower moving mass means the 1000 watt motor can accelerate the cone more quickly, improving transient response. Higher cone stiffness delays breakup modes to higher frequencies, keeping the driver behaving as a piston throughout its operating range. The carbon fiber dust cap provides the same stiffness advantage at the center of the cone where large dust caps on high-excursion drivers often flex and add distortion.
Cast Aluminum Frame
The 6-spoke cast aluminum frame provides rigidity that stamped steel cannot match at this power level. The Silver Vein powder coat adds corrosion resistance and a distinctive appearance. The CNC diamond-cut motor finish is functional as well as aesthetic: the precision-machined surface ensures tight gap tolerances that are critical for consistent motor performance at high excursion.
Fitment at a glance: mounting depth 5.9 inches, dual 4-ohm voice coil (wire parallel for 2 ohms, series for 8 ohms). Recommended sealed volume 1.25 to 1.8 cubic feet. Compatible with free-air and infinite baffle installations. Audiomobile also supports ported enclosures; contact Audio Intensity for ported alignment guidance specific to the 4415.
Built and Backed
Audiomobile covers the Encore 4415 with a 1-year limited warranty through authorized dealers. Every unit sold by Audio Intensity is brand new current production with full warranty coverage and lifetime tech support.
Authorized Audiomobile Dealer
Audio Intensity ships the Audiomobile Encore 4415 from Tullahoma, Tennessee. Tell us your vehicle, your available depth, and your amplifier and we will help you confirm the fit and spec the right enclosure.
Sealed Enclosure Performance: Pre-Calculated Results
Using Audiomobile's published Thiele-Small parameters and their recommended sealed volumes, here are the predicted Qtc, system resonance (Fc), and F3 rolloff for each box size. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.
The Encore 4415 is a high-Qts driver: all three sealed volumes produce Qtc above 1.0, delivering the punchy, impactful bass character the Encore is known for. The 31 Hz Fs and 76L Vas allow genuine deep extension despite the shallow 5.9 inch mounting depth. F3 in the 38-41 Hz range is exceptional performance for a low-profile 15 inch driver.
Dual 4-Ohm | Qts 0.631 | Fs 31 Hz | Vas 76 L
| Box Volume | Qtc | Fc | F3 |
|---|---|---|---|
| 1.25 cu ftMinimum / tightest / highest Qtc | 1.119 | 55.0 Hz | 41.4 Hz |
| 1.5 cu ft ★Optimal balance of output and extension | 1.054 | 51.8 Hz | 39.8 Hz |
| 1.8 cu ftMaximum / deepest extension | 0.996 | 48.9 Hz | 38.5 Hz |
Frequency Response — Sealed
1.25 cu ft (Qtc 1.119)
1.5 cu ft (Qtc 1.054) ★
1.8 cu ft (Qtc 0.996)
What the numbers mean: All three sealed volumes for the Encore 4415 produce Qtc at or above 1.0, which means a noticeable midbass lift centered around the system resonance. This produces the strong, impactful bass character the Encore 4415 is designed for, not flat Butterworth accuracy, but output and presence. The F3 values in the 38-41 Hz range represent real deep bass extension for a driver that mounts at 5.9 inches. Vehicle cabin gain below 80 Hz adds another 6-12 dB in practice. Run your own numbers in the Sealed Box Calculator.
The Enclosures tab above includes the Audiomobile Encore 15 inch sealed down-firing enclosure, purpose-built for this driver and stocked at Audio Intensity in Tullahoma, Tennessee.
| Audiomobile Encore 4415 15 Inch Subwoofer Specifications | |
|---|---|
| Power and Configuration | |
| RMS Power Handling | 1000 Watts |
| Peak Power (6 dB Crest Factor) | 4000 Watts |
| Voice Coil Configuration | Dual 4-Ohm |
| Wiring Options | 2 Ohm (parallel) or 8 Ohm (series) |
| Voice Coil Diameter | 3 in |
| Thiele-Small Parameters | |
| Resonant Frequency (Fs) | 31 Hz |
| Total Q (Qts) | 0.631 |
| Electrical Q (Qes) | 0.670 |
| Mechanical Q (Qms) | 10.935 |
| Equivalent Volume (Vas) | 76 L |
| DC Resistance (Re) | 3.2 Ohm (per coil) |
| Xmax (One-Way Linear) | 19 mm |
| Recommended Sealed Enclosures | |
| Minimum | 1.25 cu ft |
| Optimal | 1.5 cu ft |
| Maximum | 1.8 cu ft |
| Motor and Cooling Technology | |
| Motor Gap Design | SMG (Shaped Magnetic Gap) |
| Flux-Stabilization Rings | Upper and Lower Aluminum Alloy |
| Cooling System | ICAR Aluminum Intercooled Heatsink and Radiator |
| SuperCool Motor Venting | Forced-Air Internal Cooling |
| Cone and Suspension | |
| Cone Material | Carbon Fiber |
| Dust Cap | Carbon Fiber |
| Surround | Rubber |
| Frame and Finish | |
| Frame Construction | 6-Spoke Cast Aluminum |
| Frame Finish | Silver Vein Powder Coat |
| Motor Finish | CNC Diamond-Cut |
| Mounting and Physical | |
| Mounting Depth | 5.9 in |
| Sealed Enclosure Range | 1.25 to 1.8 cu ft |
| Engineering Origin | USA |
| Warranty | 1 Year (Authorized Dealers) |
