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A distribution block acts as the "nerve center" of your amplifier installation — a single power wire runs from your battery to the block, with smaller wires branching off to components such as an amplifier, powered sub or capacitor. It's a more efficient way to run your wiring, and it also makes it easier to troubleshoot problems.

Created for small-to-medium multi-amp systems, the DBX3434 distribution block gives you a lot of options in one compact package. With three 4-gauge inputs and three 4-gauge outputs, you can use this simple, expandable design to hook up multiple amps to power or ground in your car, or to integrate specialized power systems in your boat or RV. It will also work as a mid-system junction block in your custom installation. However you choose to use it, the DBX3434 block handles your power cleanly and efficiently.

Streetwires machines their distribution blocks from solid brass, then coats them with corrosion-resistant, Diamond Plate Nickel for outstanding current delivery and low power loss. Nickel-plated brass contacts promote maximum signal transfer, and a clear, impact-resistant cover protects your connections. Warranty: lifetime.

StreetWires DBX3434 Reviews

Average Customer Review:

3 Reviews

Pretty good.

Written by: Bought as a block for grounding. from Bronx, NY on July 18, 2012

Crutchfield Customer Review (What's this?)

Solidly built and holds on to cable pretty tightly. I am using it for grounding duties, so having in line fuses wasn't an issue. Looks pretty swank too I guess, but I have it hidden from view. I am more of a "keep everything stealth" type of guy.

Pros: Small, good looking, holds wire tightly.

Cons: No in-line fuse, but that shouldn't be an issue if you know exactly what you are buying.

StreetWires DBX3434

Written by: john from cape cod on February 3, 2009

Crutchfield Customer Review (What's this?)

great product easy to install, fits many locations with its many ports




Written by: turtle from chi on May 7, 2008

Crutchfield Customer Review (What's this?)

i put one and its great it helps me find a prob in the sub faster



Hands-on research

What's in the box?

Download owner's manual

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

Product Research


Overview: This Streetwires DBX3434 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 3 front-mounted outputs that will accept up to 4-gauge wire. These set screws also require a 4mm Allen wrench.

Our Product Research Team

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