Machined from solid brass and coated with Diamond Plate Nickel, the StreetWires DBX3448 power distribution block allows you to connect as many as four amplifiers to a single power source.

Just connect your 4-gauge power cables to one of the three set screw inputs, then run up to four 8-gauge cables to your amplifiers — you'll also need to place in-line fuses between the distribution block and your amps. You can also use this block to ground your multi-amp system. Contacts are made of nickel-plated brass for maximum signal transfer. Warranty: lifetime.

StreetWires DBX3448 Reviews

Average Customer Review:

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Works as intended

Written By Josh, Michiagn on Wednesday, June 12, 2013

Crutchfield Customer Review (What's this?)

My biggest worry was the plasitc top not coming off easily enough,breaking the tabs that hold it on and having to use tape to hold it on.but it comes off and everything went off without a hitch.another great review for the crutchfield team,you guys are great! and did i mention your shipping is on point? well it is ...

Pros: if you got two to four amps you need this ,and they make it.

Cons: so many wires to strip =[ but so worth it =]

Good procuct

Written By J, Alabama on Sunday, March 11, 2012

Crutchfield Customer Review (What's this?)

Well made, easy to use

Pros: Three sided input options.

StreetWires Distribution Block

Written By Tracy, Sandston, VA. on Thursday, July 08, 2010

Works great for multi-amp install. No issues with tightening the set-screws or mounting the
block. Crutchfield just keeps on keep'n on!!!

Nice product but...

Written By Cole, S. Fla on Thursday, August 10, 2006

Crutchfield Customer Review (What's this?)

This is a good product, but it says: "Just connect your 4-gauge power cable to the set screw input and run up to
four 4-gauge cables to your amplifiers - you'll also need to place in-line
fuses between the distribution block and your amps. You can also use this
block to ground your multi-amp system.

The block features four inputs/outputs for 4-gauge cables and one 4-gauge
set screw input/output. Contacts are made of nickel-plated brass for maximum
signal transfer."
and it has 3 4 gauge and 4 8 gauge.
Maybe they will fix this before you even read it... but they have it right on the crutchfield Hands on page...

Hands-on research

What's in the box?

Download owner's manual

  • Power distribution block with three 4 gauge inputs and four 8 gauge outputs

Product Research


Overview: This Streetwires DBX3448 Power Distribution Block allows you send battery power to multiple amplifiers. It can also be used to combine the ground wires of multiple amplifiers to a single grounding point.

Materials: This distribution block is made of forged brass for maximum current transfer. The block is mounted in a strong polycarbonite base and clear cover. The slim profile allows you to mount the block in a concealed area.

Inputs and Outputs: This distribution block has three inputs (2 side and 1 rear) that will accept up to 4-gauge wire. The three inputs give you maximum mounting flexibility by allowing you to connect the input wire straight on or to either side. The direct set screw connections provide superior clamping and low resistance. The set screws can be tightened/loosened with a 4mm Allen wrench (not supplied). The block also has 4 front-mounted outputs that will accept up to 8-gauge wire. These set screws require a 3mm Allen wrench.

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