The 3100 series 15 employs a finely-tuned balance of damping and extensive motor force to achieve very high efficiency, offering exceptional versatility and unmatched performance in a variety of real-world functions:
Paired with a traditional (4th order) bass-reflex enclosure, the subwoofer’s output can be focused along a narrow bandwidth for use in extreme loudness / SPL applications. In a 6th order bass-reflex, the output can be spread along a wider frequency range, shifting emphasis onto sound quality with articulate delivery and highly controlled excursion.
Fs 26.920 Hz
Qms 3.930
Vas 97.350 l
Cms 0.100 mm/N
Mms 319.110 g
Rms 13.850 kg/s
Dia 318.210 mm
Sd 795.270 cm²
Qes 0.320
Re 7.070 Ω
Le 2.810 mH
Z 8.490 Ω
Bl 34.510 Tm
Bl²/Re 168.350 N²/W
Qts 0.290
no 0.570 %
SPL 89.710 dB
EBP 84
Nominal Diameter 15in
Overall Diameter 15.25in / 387.4mm
Mounting Hole Diameter 14.14in / 359.4mm
Bolt Hole Circle Diameter
Motor Outer Diameter
Mounting Depth 8.01in / 203.6mm
Required Pole Vent Clearance
Driver Displacement 0.19 cu ft / 5.42l
Minimum Sealed Volume N/A
Minimum Vented Volume 2.96 cu ft / 84l net*
* Tune for desired response

The above designs have been engineered for a “two tier” balance of compatibility: First, between the cabin acoustics of a sedan, hatchback and an SUV, and second, between the two available voice coil configurations, for a total of six balance points. This ensures a linear response and optimal power handling for listening purposes under most circumstances. Please visit our Enclosure Design Service page for custom designs.