Audiomobile Encore 4415 15" Subwoofer

The Audiomobile Encore 4415 handles 1000 watts RMS continuously and 4000 watts peak (rated at 6 dB crest factor). The 1000 watt RMS rating is supported by Audiomobile's ICAR aluminum intercooled heatsink and radiator system combined with SuperCool forced-air motor venting, which manages voice coil temperature during sustained high-power operation.

Most shallow-mount subwoofers sacrifice power handling to achieve reduced depth because a smaller motor has less thermal mass. The Audiomobile Encore 4415 addresses this with active thermal management: the ICAR aluminum intercooler and SuperCool motor venting system use forced air to cool the internal heat sinks adjacent to the voice coil, regardless of cone position. This active cooling allows 1000 watts RMS in a 5.9 inch depth package where passive cooling alone would fail.

Audiomobile recommends a sealed enclosure of 1.25 to 1.8 cubic feet for the Audiomobile Encore 4415, with 1.5 cubic feet as the optimal volume. The Audiomobile Encore 15 inch sealed down-firing subwoofer enclosure is a purpose-built turnkey option available through Audio Intensity. The 4415 also supports ported and infinite baffle installations; contact Audio Intensity for ported alignment guidance.

SMG stands for Shaped Magnetic Gap. The motor gap geometry is machined to optimize magnetic flux distribution across the voice coil winding height, maintaining more consistent motor force across the full 19mm excursion range. Combined with upper and lower aluminum alloy flux-stabilization rings that reduce inductance variation with cone position, the SMG design produces lower distortion at high excursion and more consistent transient response compared to a standard cylindrical gap.

The Audiomobile Encore 4415 is a single driver with a dual 4-ohm voice coil. Wiring the two coils in parallel presents a 2-ohm load, compatible with 1-ohm stable Class D monoblocks and maximizing power delivery. Wiring the coils in series presents 8 ohms, suitable for amplifiers that prefer higher impedance loads. For most installations, 2-ohm parallel is the preferred wiring.

Yes. Audiomobile specifies the Encore 4415 as compatible with free-air and infinite baffle applications in addition to sealed and ported enclosures. Free-air and IB installations use the vehicle's rear cabin volume as the acoustic load. This is a viable option in full-size SUVs and trucks where the available air volume is large. Contact Audio Intensity for guidance on free-air power handling derating for your specific vehicle.

Carbon fiber provides a high stiffness-to-weight ratio that improves cone performance in two ways. Lower moving mass allows the motor to accelerate the 15 inch cone more quickly, improving transient response and reducing the bass overhang that heavier cones produce. Higher stiffness delays cone breakup resonances to higher frequencies, keeping the driver behaving as a piston throughout its operating range. The carbon fiber dust cap provides the same advantages at the center of the cone where large dust caps on high-excursion drivers often add distortion.

The Audiomobile Encore 4415 carries a 1-year limited warranty against defects in materials and workmanship when purchased from an authorized Audiomobile dealer. Audio Intensity is an authorized dealer. Every unit we sell is brand new current production with full warranty coverage and lifetime tech support.