Box Brackets

Item #: 125B702KIT

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Secure your subwoofer box firmly to the floor of your vehicle. Each set contains four brackets (each with two holes) and 8 sheet metal screws. Use two sets for box pairs or very large boxes. Warranty: 60 days.

Hands-on research

What's in the box?

Download owner's manual

  • 4 black metal "L" brackets (arms are 1.575" long)
  • Sixteen 1/2" sheet metal screws

Product Research

Used to secure speaker boxes to vehicles. There are two holes for screws spaced 0.525" apart on each arm of the bracket.

Required drilling box and vehicle.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Box Brackets Reviews

Average Customer Review:

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Holds sub in place

Written By buyer6060, Pinole, CA on Tuesday, May 27, 2014

Crutchfield Customer Review (What's this?)

Used these brackets to hold a Sound Ordinance B-8P powered sub. Mounted in the corners of the box. Holds them in place well. Yeah, I could have gone with hardware store L brackets but wanted an clean looking installation. The black color and rounded edges gives me that look.

Pros: Holds sub securely.

Cons: None

Not needed

Written By Darren, Augusta,GA on Tuesday, March 27, 2012

Crutchfield Customer Review (What's this?)

Found out I didn't need these brackets since my sub box does not move in tight trunk space. I am sure they will do fine if you don't plan on ever moving your sub box out of the way.

Pros: good quality brackets

Cons: make sure that you really need this before buying

125B70KIT speaker box brackets

Written By Sergio A., Sacramento, CA on Tuesday, April 06, 2010

Crutchfield Customer Review (What's this?)

It looks like Crutchfield is using a different supplier for these box brackets, because I
also got the ones with two holes on each "L" bracket, instead of the four holes like in the
picture. Anyway, they do the job they were intended to do, which is to hold down securely
your subwoofer or full-range speaker box inside your vehicle. You can always drill the
extra holes in the brackets, if you need extra hold-down power, but it's not necessary.

Box Brackets

Written By Lawrence, Gilbert, AZ on Monday, October 31, 2005

Crutchfield Customer Review (What's this?)

They do what they were made for... to hold your box in place so it doesn't kill you when you get into an accident. But the ones I got only had two holes for each L bracket, not four like in the picture... But the box still seems stable and not shifting around the back.

It Does The Job

Written By Brahda808, Hawaii on Wednesday, October 19, 2005

Crutchfield Customer Review (What's this?)

Buying a new sub and box? Make sure you secure them to the vehicle or that box will move around, destroying everything in your trunk including the box! Plus, it thieves actually make it in your vehicle, they will have a harder time removing that box!

You may find something similar at a hardware store that you can make (and maybe cheaper), but it's so convenient to add this to your Crutchfield order.

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