2002-2013 Chevy Silverado HD Crew / Avalanche Dual 10" Harmony HA-R104 Sub Box with 2x HA-R104 Subs, Kicker CX300.1, CXA400.1 & HA-AK10 Kit

Package contents (included): 1 x 2002-2013 Chevy Avalanche / Silverado HD Crew custom dual 10" sealed subwoofer enclosure (fits under rear seat; seat must fold forward to install) 2 x Harmony Audio HA-R104 Rhythm Series 10" single 4 ohm subwoofers (500 Watt peak / 250 Watt RMS each) 1 x Kicker CX300.1 Class D mono subwoofer amplifier (600 Watt max) 1 x Harmony Audio HA-AK10 10 Gauge 600 Watt amp wiring kit — Nickel finish Enclosure details: Air space: 0.48 Cubic Feet per sub Mounting depth (enclosure): 4 1/2" Sealed enclosure external dimensions: Width 48" x Height 6" x Depth 16-3/4" Designed to sit under the rear seat (seat must fold forward for installation) Harmony HA-R104 subwoofer specifications: Series: Rhythm Series Power handling: Peak: 500 watts / RMS: 250 watts Sensitivity: 86.1 dB Frequency response: 30 Hz - 1.5 kHz Mounting depth: 5 5/16" Mounting cutout diameter: 9 1/4" Kicker CX300.1 amplifier specifications: RMS power rating: 4 ohms: 150 watts x 1 channel; 2 ohms: 300 watts x 1 channel Maximum power output: 600 watts x 1 channel Variable low-pass filter: 50 - 200 Hz, 12 dB/octave Frequency response: 25 - 200 Hz This kit provides a complete sealed under-seat sub system for 2002-2013 Chevy Avalanche and Silverado HD Crew trucks, pairing a low-profile custom enclosure and two 10" Rhythm Series subs with a compact Class D mono amplifier and a matching 10-gauge installation kit.