Title
1988-1998 Chevy Silverado Extended Cab Dual Sub Box
An OBS Chevy extended cab sub box for the 1988-1998 Silverado and its GMC Sierra twin. Two 8" or two 10" subs mount under the rear seat and fire down, each in its own 0.75 cu ft chamber behind a divider.
Fits
- Chevrolet Silverado extended cab, 1988-1998
- GMC Sierra extended cab, 1988-1998
- Mounts under the rear seat
- The jack has to come out to fit the box
- The box sits with 1 1/4" of clearance underneath
Specs
| Subwoofers | Two 8" or two 10" |
|---|---|
| Firing direction | Down |
| Airspace | 0.75 cu ft per sub |
| Mounting depth | 5 1/4", measured with a 6" diameter magnet |
| Cutouts | Standard: 7" for 8" subs, 9 1/8" for 10" subs |
| Construction | MDF, CNC cut, assembled by hand |
| Terminals | Speaker terminals included |
| Included | Box divider and speaker terminals; subwoofers and amplifiers are not included |
Install notes
- Remove the jack before fitting the box under the rear seat.
- The terminals ship uninstalled so they are not damaged in transit; each is wrapped separately and packed inside the box. Fit them before the box goes in.
Choosing your subs
The 5 1/4" depth assumes a magnet no wider than 6", so check both figures, the 0.75 cu ft per sub airspace and the cutout against your subs' specs; a sub larger than these specs may not fit. Type the sub model in the "What Sub Model are you using?" box when ordering so the holes are cut to match, since cutout diameters vary between subs. Shop 8" subwoofers or 10" subwoofers.
Built to order
Built to order by Xtreme Enclosures: CNC cut from MDF, assembled by hand and carpeted. Estimated lead time: 20–40 business days.
Questions before you order? Call SSA at (443) 345-1537 or email support@soundsolutionsaudio.com.
An OBS Chevy extended cab sub box for the 1988-1998 Silverado and its GMC Sierra twin. Two 8" or two 10" subs mount under the rear seat and fire down, each in its own 0.75 cu ft chamber behind a divider.
Fits
- Chevrolet Silverado extended cab, 1988-1998
- GMC Sierra extended cab, 1988-1998
- Mounts under the rear seat
- The jack has to come out to fit the box
- The box sits with 1 1/4" of clearance underneath
Specs
| Subwoofers | Two 8" or two 10" |
|---|---|
| Firing direction | Down |
| Airspace | 0.75 cu ft per sub |
| Mounting depth | 5 1/4", measured with a 6" diameter magnet |
| Cutouts | Standard: 7" for 8" subs, 9 1/8" for 10" subs |
| Construction | MDF, CNC cut, assembled by hand |
| Terminals | Speaker terminals included |
| Included | Box divider and speaker terminals; subwoofers and amplifiers are not included |
Install notes
- Remove the jack before fitting the box under the rear seat.
- The terminals ship uninstalled so they are not damaged in transit; each is wrapped separately and packed inside the box. Fit them before the box goes in.
Choosing your subs
The 5 1/4" depth assumes a magnet no wider than 6", so check both figures, the 0.75 cu ft per sub airspace and the cutout against your subs' specs; a sub larger than these specs may not fit. Type the sub model in the "What Sub Model are you using?" box when ordering so the holes are cut to match, since cutout diameters vary between subs. Shop 8" subwoofers or 10" subwoofers.
Built to order
Built to order by Xtreme Enclosures: CNC cut from MDF, assembled by hand and carpeted. Estimated lead time: 20–40 business days.
Questions before you order? Call SSA at (443) 345-1537 or email support@soundsolutionsaudio.com.
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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.
