QPower Dual 10" Sealed Underseat Downfire Sub Box for GMC and Chevy Avalanche, All Years
QPower Dual 10" Sealed Underseat Downfire Sub Box for GMC and Chevy Avalanche, All Years
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QPower Dual 10" Sealed Underseat Downfire Sub Box for GMC and Chevy Avalanche, All Years

|2 ratings

Key item features

  • Compatible with all years of Chevy and GMC Avalanche models
  • Sealed dual enclosure supports 10-inch subwoofers for stronger, more immersive bass performance
  • Downfire design directs bass toward the floor for tighter, more controlled low-frequency response
  • Compact underseat layout saves valuable cabin space while upgrading your audio system
  • Remove plastic protective tube under the seat before installation
  • Internal air space of 0.5 cubic feet per subwoofer optimizes sound quality and bass depth
  • Supports subwoofers with up to a 4.5 inch mounting depth for broad compatibility
  • Finished in a rugged bed liner coating to resist wear, moisture, and daily truck use
  • Durable 5/8-inch MDF construction delivers long-lasting reliability in demanding driving conditions
  • Air space: 0.5 cubic feet
  • Cutout diameter: 9 inches
  • Mounting depth: 4.5 inches
  • Top Depth/Bottom Depth: 7.5 inches / 6 inches
  • Dimensions (D x W x H): 7.5 x 46 x 14 inches
  • Weight: 28 pounds
  • Manufacturer warranty: 2-year warranty
Current price is $135.76
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3 out of 5 stars
stars2 ratings2 reviews
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Showing 1-2 of 2 reviews

Sep 19, 2015
Daemetos
4 out of 5 stars review

Avalanche sound box

it fits fairly well, the seats don't sit "down" the way they normally do, but they are still level. The 40% seat on the passenger (right) side does sit about 3/4"-1" higher than the 60% bench on the driver side (left). The only real issue I have which reduces my rating by a star, is that the seat backs will not lay flat, so you cant utilize the unique feature of the truck by laying the back of the cab down to extend the bed to full length.

Helpful?399DQFX60F2T48206745
Sep 8, 2019
Eightybeans
2 out of 5 stars review

This box does not fit a 2009 Avalanche. once under the seat the subwoofers sit on the floor which could damage the subs. My box had a hole in it which I will need to seal. Box also does not say Qpower or Qbomb. Will need to make changes for this to work. Really wanted to like this.

Helpful?399DQFX60F2T48206745