Harmony Accessory Master R124 Dual 12 Sub sku-691155806

Harmony Accessory Master R124, SKU sku-691155806, UPC 650785139770, is listed as Restored Automotive. The package includes 1 sealed dual 12-inch enclosure for select 2002-2013 GMC Sierra HD Crew and Chevy Avalanche applications, 2 Harmony Audio HA-R124 Rhythm Series single 4-ohm subwoofers, 1 Kicker CX300.1 Class D amplifier and a Harmony Audio HA-AK10 10-gauge 600-watt wiring kit.

Each subwoofer is rated at 600 watts peak and 300 watts RMS. The amplifier is rated at 600 watts maximum. The enclosure fits under the rear seat, which must fold forward for installation, and the subwoofers fire upward toward the seat. It provides 0.48 cubic feet of air space per sub, has a mounting depth of 4 1/2 inches, and measures 48 inches wide, 6 inches high and 16-3/4 inches deep.

Subwoofer specifications include 88.2 dB sensitivity, a 27 Hz to 1.8 kHz frequency response, 5 11/16-inch mounting depth and 11 1/8-inch cutout diameter. The amplifier delivers 150 watts RMS at 4 ohms or 300 watts RMS at 2 ohms, each through 1 channel. Its variable low-pass filter spans 50 to 200 Hz at 12 dB per octave, and its frequency response is 25 to 200 Hz.