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2015-2022 Colorado/Canyon Crew Cab Dual 10 Downfire Sub Box *Hot Product*



2015-2022 Colorado/Canyon Crew Cab Dual 10 Downfire Sub Box *Hot Product*

Fits 2015-2022 Chevy Colorado & GMC Canyon Crew Cab Trucks

Approx. Empty Weight: 26 lbs
MDF Construction
Installs under rear seat
Plastic cover and support bar
must be removed for box to fit
Box is held in securely by seat
No modifications to truck are required
Speakers fire down with
1-1/2" of box to floor clearance 
Fits two 8" or 10" shallow subs
Also fits JL 10TW3 (9-5/8" cutout)  
Normal Cutout Size= 9-1/8" for 10"
Normal Cutout Size= 7-1/8" for 8"
Mounting Depth: 3-1/2"
with restrictions-see below
Volume: .45 cu.ft per sub
Sealed Box
Finish: Carpet
Carpet shown: Black
Terminals: Installed
Subwoofers Sold Separately
Patented Design


Check out our video here


See a customer's install using our box Here 


Customer comment: The guys at Subthump made a quality product that fit like a glove.



If you own a new 2015-2020 Colorado or Canyon pickup, you already know that there isn't much room left over for subs.  The space under the rear seat is very restrictive and doesn't allow for much in the way of subs to be installed under it.  But we managed to design a box to fit under the seat and squeeze a pair of shallow 10s in it.  We worked long and hard on this design to make it just perfect.  When it comes to adding subs in this truck, it's all about sacrafices.  Our dual box does require you to remove the plastic shield and support bar under the seat.  But don't worry because the box is the perfect height and the front of the seat rests firmly on the box and locks into place like normal.  Because of this, the box is actually held in place nicely by the seat.  So if you want the biggest boom possible in your new truck, this is definitely the box for you. 


Please note that not every shallow sub is going to fit in this box.  We will try to list some of the ones that will work.  Remember, we are pushing the envelope here and the space is extremely tight.  The subs we used are the Rockford R2 and they work very well.  We will not take returns on this box if 'your' sub doesn't fit.  This is a specialty application, please choose a sub from the list or find one that does fit.  8" subs will be more forgiving, so go that route if you want to play it safe.



10" shallow subs that fit:
Alpine SWR-T10
Rockford P3 Shallow
Rockford R2 Shallow
JL Audio 10TW3 (larger hole option required)
Possibly others.  We will add to this list as we get more user feedback.  
Pioneers: N/R

A note about Pioneers: Pioneers traditionally have all different cutiout sizes and frame sizes on their shallow subs.  In other words their different models are all over the place in this regard.  If you plan to use pioneers make sure you select a model with a cutout that will fit our standard hole size of (9-1/8") but also fit's the depth requirement of the box.  
 This is why we really do not recommend pioneers.  The others on the list are far better and will fit the hole requirement.  Please be aware that if we have to modify our design for a larger hole size, that this will require building the box from scratch and therefore a customization fee will be applied. 


Available Options:
Speaker Openings:
Carpet Color:
Logo Selection:
select logo choice. for no logo, select none

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by Scott Fisher Date Added: Wednesday 24 March, 2021
This box is badass I bought one for my 2021 Colorado and it hits hard kicker comp vr 10s red shallow..

Rating: 5 of 5 Stars [5 of 5 Stars]
by Chris Raulston Date Added: Saturday 24 September, 2016
This box from Subthump, is very well put together, arrived in tact and on time, and fit as expected. (Col15-210DF) The fit for this setup is tight... After the box is installed and the amp mounted (drivers side), there is not a lot of space left over. I paired it with two Kicker CompRT 40WRT102 and a Kicker 43CXA12001. The subs fit perfectly. I also used the Kicker KISL and Kicker 43XARC Remote. (Nice to have separate bass control with stock head unit) The sound... For what it is, using shallow mount subs... Amazing. I haven't found the ceiling of the bass level as of yet. I thought that the shallow mount might not handle the low bass or a large amount of power (based on specs) but they handle it well. The bass is crisp, clear, and hits hard... To hear these subs in the small cabin do so well... it was a surprise. The only thing I would caution is don't go skimpy on the the subwoofer amp power, these subs are hungry...

Rating: 5 of 5 Stars [5 of 5 Stars]

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This product was added to our catalog on Monday 30 November, 2015.
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