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Main image of R124 Dual 12" Loaded Sub Box Fits 07-13 Chevy Silverado Ext Cab Harmony | 12-inch subwoofer for extended trucks, woofers pre-mounted and wired, air-tight sealed audio design

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R124 Dual 12" Loaded Sub Box Fits 07-13 Chevy Silverado Ext Cab Harmony | 12-inch subwoofer for extended trucks, woofers pre-mounted and wired, air-tight sealed audio design

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Compatible with 2007-2013 Chevy Silverado Extended Cab: Custom dual 12" subwoofer box and 2 Harmony Stereo 12" Rhythm Series subwoofers. Compatible with 2007-2013 Silverado Extended Cab, the Chevy Silverado Subwoofer Box is a dual 12" sealed box crafted with high-quality MDF construction. Box features: Mounting depth: 6", air space: 0.60 cubic feet per sub, dimensions: 55-3/4"W x Front Height 8-3/4" x Rear Height 5" x Depth 14-3/4". Harmony Stereo HA-R124 Subwoofers: 12", 4 Ohm, 600W peak power / 300W RMS, sensitivity: 88.2dB, frequency response: 27Hz-1.8kHz. Subwoofer specifications: Mounting depth: 5 11/16", mounting cutout diameter: 11 1/8", suitable for sealed or vented box configurations

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Compatible with 2007-2013
Chevy Silverado Extended Cab: Custom dual 12" subwoofer box and 2 Harmony Stereo 12" Rhythm Series subwoofers. Compatible with 2007-2013 Silverado Extended Cab, the Chevy Silverado Subwoofer Box is a dual 12" sealed box crafted with high-quality MDF construction.
Box features: Mounting
depth: 6", air
space: 0.60 cubic feet per sub, dimensions: 55-3/4"W x Front Height 8-3/4" x Rear Height 5" x Depth 14-3/4".
Harmony Stereo HA-R124 Subwoofers: 12", 4 Ohm, 600W peak power / 300W RMS, sensitivity: 88.2 dB, frequency
response: 27Hz- 1.8 kHz.
Subwoofer specifications: Mounting
depth: 5 11/16", mounting
cutout diameter: 11 1/8", suitable for sealed or vented box configurations

Additional Information
First Listed on Newegg	August 17, 2026

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Return for refund within: 30 days
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Item#: 9SIC8EAM4S6265