Kicker 50CVX154 CompVX 15-Inch Subwoofer, Dual 4-Ohm

High-temp dual voice coils deliver the power, while a solid pole piece provides more mass to subdue additional heat. A T-cut top plate creates a wider magnetic field for stronger bass response, and better sound. It all comes together to form a super-reliable motor structure found only in a KICKER subwoofer.

Features:
Dual Two-Ohm Voice Coils
Thick Polypropylene Cone
Signature Double Blue Surround Stitching
Ribbed Santoprene® Surround
SoloKon™ Cone Reinforcement
Oversized Suspension System
High-Strength Insulated Tinsel Leads
High Temp Voice Coil
Perimeter Venting for Thermal Management
Massive Ceramic Magnet
UniPlate™ Extended Pole Piece & Backplate For Superior Heat Dissipation
Cast Aluminum Basket
Satin Nickel Spring-Loaded Speaker Terminals

Specifcations:
Size (IN.,CM): 15, 38
Impedance (OHMS): 4 DVC
Recommended Amplifier Power (watts RMS): 1000
Peak Power (watts, per ANSI/CTA-2031-A): 2000
Sensitivity (dB 1w/1m): 91.6
Frequency Response (Hz): 18-500
Mounting Depth (in, cm): 8-1/2, 21.5
Mounting Cutout (in, cm): 13-13/16, 35
Min Sealed Box Vol (cu. ft, L): 1.8, 51.0
Max Sealed Box Vol (cu. ft, L): 5.2, 147.0
Min Vented Box Vol (cu. ft, L): 3.0, 85.0
Max Vented Box Vol (cu. ft, L): 5.0, 142.0

What's in the box?
one 15-inch subwoofer, one owner's manual, two stickers

Thiele/Small Parameters
Re: 7.595 Ohm
Krm: 0.0271 Ohm WRIGHT inductance mode
Erm: 0.835 WRIGHT inductance mode
Kxm: 0.1218 Ohm WRIGHT inductance mode
Exm: 0.715 WRIGHT inductance mode
Cmes: 289.76 µF
Lces: 123.895 mH
Res: 299.325 Ohm
fs: 26.6 Hz
Mms: 306.2285 g
Mmd: 278.474 g
Rms: 3.531 kg/s
Cms: 0.117 mm/N
Kms: 8.54 N/mm
Bl: 32.51 Tm
Lambda: 0.0215
Qtp: 0.444
Qms: 14.483
Qes: 0.3675
Qts: 0.3585
Vas: 118.41785 I
n0: 0.581
Lm: 89.84 dB
Lnom: 90.075
rmse Z: 3.535
rmse Hx: 2.11
Sd: 844.96 cm²
Xmax: 20.65 mm