Triple Sub Box 2003-2006 GM Sierra 1/2 Ton Crew

Triple Sub Box 2003-2006 GM Sierra 1/2 Ton Crew

Xtreme EnclosuresCustom Built: Estimated lead time of 20-40 Business days.
SKU: GMCRW 1/2 BTS TRIPLE
Categories : 2003-2006 Non-HD
In Stock
Regular price$310.70

A triple GMC Sierra speaker box for 2003-2006 half ton crew cabs, mounted behind the rear seat. It holds three 8", 10" or 12" subwoofers with 0.65 cubic feet of airspace per sub and also fits the matching Chevrolet Silverado 1500 crew cab.

Fits

  • 2003-2006 GMC Sierra 1500 Crew Cab
  • 2003-2006 Chevrolet Silverado 1500 Crew Cab
  • Half ton (1500) crew cab only; not for other series
  • Mounts behind the rear seat

Specs

Subwoofers Three 8", three 10" or three 12"
Airspace 0.65 cu ft per sub
Mounting depth 5.25"
Cutouts Standard 7" for 8s; 9 1/8" for 10s; 11 1/8" for 12s
Construction MDF, CNC cut
Terminals Speaker terminals

Choosing your subs

Check each sub's specifications against the 5.25" mounting depth, the airspace and the cutout for its size; a sub bigger than these specs may not fit. Type the sub model in the "What Sub Model are you using?" box when you order so the box is cut to match, or call for a suggestion if you have not chosen subs yet. If you don't know the cutout, the specs can be looked up from the model number. Shop 8" subwoofers, 10" subwoofers or 12" subwoofers.

Built to order

Built to order by Xtreme Enclosures: CNC cut from MDF and professionally constructed. Estimated lead time: 20–40 business days.

Questions before you order? Call SSA at (443) 345-1537 or email support@soundsolutionsaudio.com.

Sale Ends November 19th, 2026
Minimum Purchase of $349.00
*Applies to Mechman, SSA Limitless Lithium & XS Power Products ONLY
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A triple GMC Sierra speaker box for 2003-2006 half ton crew cabs, mounted behind the rear seat. It holds three 8", 10" or 12" subwoofers with 0.65 cubic feet of airspace per sub and also fits the matching Chevrolet Silverado 1500 crew cab.

Fits

  • 2003-2006 GMC Sierra 1500 Crew Cab
  • 2003-2006 Chevrolet Silverado 1500 Crew Cab
  • Half ton (1500) crew cab only; not for other series
  • Mounts behind the rear seat

Specs

Subwoofers Three 8", three 10" or three 12"
Airspace 0.65 cu ft per sub
Mounting depth 5.25"
Cutouts Standard 7" for 8s; 9 1/8" for 10s; 11 1/8" for 12s
Construction MDF, CNC cut
Terminals Speaker terminals

Choosing your subs

Check each sub's specifications against the 5.25" mounting depth, the airspace and the cutout for its size; a sub bigger than these specs may not fit. Type the sub model in the "What Sub Model are you using?" box when you order so the box is cut to match, or call for a suggestion if you have not chosen subs yet. If you don't know the cutout, the specs can be looked up from the model number. Shop 8" subwoofers, 10" subwoofers or 12" subwoofers.

Built to order

Built to order by Xtreme Enclosures: CNC cut from MDF and professionally constructed. Estimated lead time: 20–40 business days.

Questions before you order? Call SSA at (443) 345-1537 or email support@soundsolutionsaudio.com.

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

We accept payments with :
Visa, MasterCard, American Express, Paypal, Diners Club, Discover and more.

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

We accept payments with :
Visa, MasterCard, American Express, Paypal, Diners Club, Discover and more.

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