Includes:
2 x Alpine R-W10D4 Subwoofers
2 x 24" Length Speaker wire with female spade terminals
16 x Coarse wood screws 1 5/8" length (Phillips head)
General Features:10" Dual 4 ohm Type-R Subwoofer
Power Handling:Peak: 2250watts
RMS: 750 watts

Recommended power range: 300 - 750W RMS
CTA-2031 compliant power ratings
Parabolic pulp/kevlar cone
H.A.M.R. surround
Polypropylene, mica and talc dust cap
Reinforced cone neck and spider joint
Cast aluminum frame with integral shorting sleeve
8AWG push terminals with VC configuration jumpers
2.6" High excursion overhung voice coil
111 oz. Strontium ferrite segmented magnet
Top-mount depth: 5-7/8"
Cutout diameter: 9-1/16"
Frequency Response: 26 - 200Hz
Sensitivity: 82.4dB
Resonance Frequency (Fs): 31Hz

Subwoofer Specifications:Subwoofer Series: Type-R (Alpine)
Subwoofer Size: 10"
Peak Power Handling: 2250 watts
RMS Power Handling: 750 watts
Voice Coil(s): Dual
Impedance (Per Voice Coil): 4 ohms
Voice Coil Diameter: 2.6"
Frequency Response: 26 - 200 Hz
Sensitivity: 82.4 dB
Xmax (millimeters): 20 mm
Subwoofer Design: Round / Circle
Main Cone Color: Black
Woofer Composition: Kevlar Reinforced Pulp Paper