Model number: CTB99-210/212MAXX
A comprehensive review of 99-06 GM Extended Cab Ultra Deep MAXX Dual 12 Inch Downfire Prefabricated Subwoofer Box. As there is a high demand for quality subwoofer enclosures for 99-06 GM extended cab pickups in our community, this is a great opportunity to provide more exposure to this product.
Introducing the deepest subwoofer box commercially available for your 99-06 and 07 classic GM extended cab pickups. The Ultra Deep Maxx box is not only deeper than SubThump's "Ultra Deep" box, but has more volume and more clearance for your high powered subs. Think of this box as their famous Ultra Deep box on steroids. Now you can easily fit subs like JL 12w6 and Alpine type Rs in a box under the seat. Since it's a downfire box, it stays completely under the seat and doesn't stick out and interfere with your rear passenger's leg room and the subs are hidden from view. The best part is that it does not require a seat lift. The seat will still close normally down to the stops and lock into place as usual. If you are serious about getting some major slam into your truck, then pick one of these bad boys up today.
Fits: 1999-2006 and 2007 Classic GM Extended Cab Trucks
Approx. Empty Weight: 39 lbs
Mounting Depth: 8" (not a misprint)
Volume: 1.13 cu.ft per chamber
Logo Text: Optional
Does not affect rear seat latching - Seat will still go all the way down and latch
3/4" MDF Construction
Installs under the rear seat
No modifications required
Fits 10" and 12" round or square subs
Sealed Box, separated chambers
Subwoofers Sold Separately
Deep enough to fit many of todays deeper, beefier woofers, including: 12" Alpine Type R, 12" JL Audio W6, 12" Kicker CVX, And Many More
- Dual 10 inch Round
- Dual 10 inch Square
- Dual 12 inch Round
- Dual 12 inch Square
- Charcoal Gray
- Light Gray
- Light Tan
SubThump builds of their boxes are by hand proudly in the USA. They use the highest grade materials and latest manufacturing techniques to ensure that your box will stand the test of time and perform at its peak. Remember when shopping for your next system that the box is an investment just like a sub or amp and there are many factors to consider other than price alone. Many of their competitor’s boxes are imported or mass-produced to low standards in order to have the lowest price possible. So it is very important to go with a company that delivers a quality product and will be there to support you after the sale. No other sub box manufacturer can match our quality, or service, or our expertise. SubThump.com is all about helping you get the right components for your sound system. Remember, don’t settle for anything less than a SubThump box.
The Ultra Deep MAXX box from SubThump.com is designed and engineered to give you maximum slam without consuming precious space in your truck. The box is well planned for an accurate fit under the rear bench seat. It may take some nudging into place to get the box to sit just right to allow the bench seat to fold down and lock into place; but as advertised, the seat does go all the way down. The bass emitted from this box is deep and hard-hitting. The individually sealed chambers produce a tight punchy bass that can flex the roof of your silverado. Overall, the construction is top notch and the design has been perfected to become one of the best extended cab subwoofer box choices we've come across.
- Utilizes the maximum cubic space available with minimal loss of cabin space
- Does not require a seat lift
- Deep enough for almost any 12" sub
- A bit pricey, but worth it.
By far the best subwoofer enclosure you can put in an extended cab Silverado/Sierra truck.
View all 100+ photos in the Gallery
Where can I buy one?
Interested in picking one up for yourself? Head over to http://www.SubThump.com to see their selection of subwoofer enclosures for silverado/sierra trucks. Make sure to tell them SilveradoSierra.com sent ya!