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v12 Series 4-way distribution block — 1/0- to 4-gauge input, four 4- to 8-gauge outputs

Item # 120VDB4

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Item # 120VDB4

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About the T-SPEC VDB4

Buck Pomerantz

Distribute power neatly and securely

T-Spec designed their VDB4 distribution block to handle high-current power distribution for up to four amplifiers, while keeping your wiring connected securely and looking neat. You could also use it as a ground distribution block, combining the ground wires of up to four amps to a single grounding point. Solid nickel-plated brass construction ensures reliable power flow, and an impact-resistant plastic cover protects your connections from the weather.

Product highlights:

  • one-in, four-out distribution block
  • one 1/0- to 4-gauge input, four 4- to 8-gauge outputs
  • can be used for power or ground distribution
  • nickel-coated brass construction
  • warranty: 1 year
  • MFR # VDB4

What's in the box:

  • Distribution block with one 1/0 or 4 AWG set-screw input and four 4 or 8 AWG set-screw outputs
  • Plastic cover (attached)
  • 3 Rubber grommets and sleeves (pre-installed on input and outputs)
  • Two 1/2" screws

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4.5 out of 5 stars
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More details on the T-SPEC VDB4

Mark G.
The T-SPEC VDB4 replaces these items:

Product Research


Overview: The T-Spec VDB4 compact 1 in/4 out distribution block is constructed of solid black nickel-plated brass for maximum conductivity. The distribution block features a translucent, impact-resistant polycarbonate cover with TPE (Thermoplastic Elastomer) grips for easy cover removal. The distribution block has a small footprint, with two holes in the base for mounting, either with the provided screws or with wire ties (not included).

Configuration: The distribution block has one input that can accommodate either a 1/0 or 4 AWG wire, and four 4 or 8 AWG outputs. A rubber grommets and sleeves are provided on the input and the 2 outputs. The grommets can be removed, with only the rubber sleeve installed, allowing 1/0 ga. wire to be inserted on the input side, and 4 AWG wire on the outputs. These provide a tight seal against dirt or particle ingress with either size input wire.

Set Screws: Input and output connections are secured with Torx T-20 set screws. A T-20 Torx driver is required to tighten or loosen the set screws.

Optional Ferrules: Install Bay (Metra) wire ferrules (sold separately) are designed to crimp onto your power, ground, or speaker wire and provide a clean, solid connection to your terminal block or amplifier with set-screw connections. Bare wire is slid into the length of the ferrule and then crimped onto the wire. This keeps all copper strands held tightly together, with no splaying while tightening the terminal connection. Install Bay wire ferrules can be found here.

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Customer Q&A

1 question already asked

Can I use this on a boat?
nathan  Sep 06, 2022
1 answer
Greetings Nathan, and thank you for your question. It is not marine rated. If you needed a distribution block for your boat, we would recommend the Coast Guard approved Kicker distribution block. Its also an independent per amp fuse holder. each amp gets its own fuse. They also have a Marine grade grounding block.
thomas  Sep 06, 2022 (Staff)

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