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Custom Dual Sub Speaker Downfire Box for all Avalanches

Starting at: $159.00

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Orders to Canada Will be Extra Shipping.Will Advice You of the Amount Before We Ship.

Custom Dual Sub Speaker Downfire Box for all Avalanches.

For max boom, our dual downfire box is the way to go. 

It fits beautifully under the seats--allowing both cushions to close easily with no interference with the box. 

Like our other downfire boxes, this one also moulds around all the bracing on the floor of the truck.  Even the large brace to the right side of the hump. 

Simply lift up the seats, set the box in place.   It's so easy, you will be impressed.  We certainly are. 

No other box on the market will fit this nicely and hit this hard for this price! 


  • Box approximately 24 lbs when empty
  • MDF construction
  • Installs under rear seat
  • Some midgate and folding function lost (approximately 2-3 inches)
  • Fits 10-inch round subs 
  • 5.25-inch mounting depth
  • 0.50 cu/ft of volume per chamber
  • Sealed box
  • Separate chambers
  • Installed terminals
  • Speakers not included - sold separately at Amazon. Click the link:
  • Carpet color: Charcoal Gray
  • Single Sub Box also available 
  • Also compatible with all Escalade EXT
  • Model: AVDF-210

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This product was added to our catalog on Wednesday 25 February, 2009.



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