Bose Subwoofer replacement!

wishfulhunter · December 21, 2018

I have yet to find a decent sound clip of the Bose replacement options. Can someone help?

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ripinlip · February 27, 2020

Or you could do what I did - Sub floor mounted 2.5 cu ft subwoofer box, Alpine Type-R 15", uses a minimum of under seat storage area.

The box fit right in front of the fuel tank and after covering it with fiberglass and undercoating it looks almost OEM (and you only see it if you crawl under the truck).

Obviously a major fab job including cutting a 12" square hole in the floor but I thought someone might find it interesting.
(hole was framed with 1/4" steel and is much stiffer even with no box mounting than the original 20awg flat steel in this area. Upper and lower box sandwich the frame and clamped with 12 bolts).
Sounds awesome and will massage your brain out if you put on rap music. Funny thing is I'm all about hi fidelity and usually listen to light jazz, but I tend to get carried away with things.

I just read this and am I right to read that you cut a hole in your floor and the box is on the underside of your rig?!? Wow

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preston · February 27, 2020

Yes - I guess its been in there a year now and I've had no problems at all, sounds great and can still store a lot of stuff under the passenger side. I've been hot rodding for years so it was just a typical fab job for me, but I have to say

if you brought it into a custom professional it would be a very expensive project. When its time to sell the truck I will just build a sheetmetal plate and bolt and seal it in you'd never know it was there unless you pulled the back seat out and pulled the carpet up and even then so what ? It will be a 150k mile truck when I sell it and it won't even mattter. I'm super happy with this solution.

Here's a pic of the cabinet before it was mounted underneath the truck. You can see it has been shaped to fit around the fuel lines on the frame rail side.

ripinlip · February 27, 2020

Yes - I guess its been in there a year now and I've had no problems at all, sounds great and can still store a lot of stuff under the passenger side. I've been hot rodding for years so it was just a typical fab job for me, but I have to say
if you brought it into a custom professional it would be a very expensive project. When its time to sell the truck I will just build a sheetmetal plate and bolt and seal it in you'd never know it was there unless you pulled the back seat out and pulled the carpet up and even then so what ? It will be a 150k mile truck when I sell it and it won't even mattter. I'm super happy with this solution.

Here's a pic of the cabinet before it was mounted underneath the truck. You can see it has been shaped to fit around the fuel lines on the frame rail side.

This may well be one of the more impressive things I’ve seen in years. Well done! Best solution award goes to you!

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camcamaro1991 · February 27, 2020

The best thing I ever did for my sound system was install full sound deadening my vehicle, from roof to floor pan. full CLD & LLP doors to floor, during my install I also covered the factory Bose sub with CLD...

and sitting in the rear seats, the Bose sub is really pronounced.

Edited February 27, 2020 by camcamaro1991

YukonXL04 · February 28, 2020

I did 3 high power 8s on 2400 rms. They freaking slam for what they are.

Lifted back seat 2 inches, box is 1.94 cubes net at 33 I think with a 6" aero port

ripinlip · February 28, 2020

The best thing I ever did for my sound system was install full sound deadening my vehicle, from roof to floor pan. full CLD & LLP doors to floor, during my install I also covered the factory Bose sub with CLD...

and sitting in the rear seats, the Bose sub is really pronounced.

This is really great. How long did that take you to do?

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ripinlip · February 28, 2020

I did 3 high power 8s on 2400 rms. They freaking slam for what they are.
Lifted back seat 2 inches, box is 1.94 cubes net at 33 I think with a 6" aero port

That is a solid box. I did the lift c bracket thing because the downfiring box I have was too to the ground for the excursion of the skars. I think a front firing box would be so much better !

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camcamaro1991 · February 28, 2020

12 hours ago, ripinlip said:

This is really great. How long did that take you to do?

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a few days, R&R interior is time consuming, but its far more work to "correctly" install the CLD & Foam & LLP... but worth it.

also I didn't really show it but the doors are full CLD on the inside skin and inside frame.

Edited February 28, 2020 by camcamaro1991

itsaname · March 14, 2022

On 8/21/2018 at 8:42 PM, huntr1117 said:

Ended up buying the center console box off ebay with the kicker comp 8". I haven't sold my 10" single box that goes under the rear seat yet, but ebay had a 15% off coupon so I decided to buy it. Here's a few pics of the install. I haven't wired it to my amp yet cause I have to remove my backseat to get to it. It was a little hot outside today with a heat index of 108 so I'll finish tomorrow. It took me about an hour and a half to install cause I was taking a few water breaks.
Here's a few pics of the console removed, the stock Bose sub, the new box with 8" sub next to the stock Bose, the 10" sub I removed compared to the others, and the new 8" installed before I put the console back in.

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Any idea where the factory sub would be located on the truck that has the middle jump seat instead of the center console? i blew my sub and need to replace it but i cant find it.

xl_cheese · June 17, 2022

Looks like JL Audio now has an option.

Bowtie619 · August 28, 2023

Did anyone ever provide dimensions on the simple wood box from OP?

IncisionInd · September 16, 2023

On 8/28/2023 at 1:35 PM, Bowtie619 said:

Did anyone ever provide dimensions on the simple wood box from OP?

I would be interested in this as well. Want to upgrade slightly from what the Bose system gives me and would really prefer to keep the rear under seat space.

Tim Fisher · January 11

On 2/5/2017 at 11:30 PM, andreej said:

Thanks. Sub was $200, Amp was $110 and probably about $50 between wiring accessories and plywood. Total of $360.

On 2/5/2017 at 10:18 PM, andreej said:

I recently finished up my Bose Subwoofer replacement in my 2016 LTZ. I felt the Bose Sub was very underwhelming. I considered the Kicker option made specifically for the Silverado, but didn't want to give up the floor space. After removing the center console and lots of measuring, I came up with a box design to work with the JL Audio 8W3V3-4 8" sub. This sub requires a volume of 0.30 cf. short of making a fiberglass box, I'm convinced there is no way to get any more volume from a box that fits under the center console (with no modifications to it).

I added an Alpine MRV-M250 amp to power the sub and mounted it on the back wall next to the factory amp. Also got the remote for the amp which is mounted inside the large storage compartment of the center console.

It sounds absolutely amazing, exactly how the factory high end system should sound! You can feel the bass in the seat, something that never happened with the stock sub!

Here's a few pictures.