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To get a detailed description of each category and it's available options, to help you make the correct selection.
RCA Cables
Featuring high levels of noise rejection resulting from meticulous build quality using only the finest materials available.
Amp Kits
T-Spec’s amp installation kits cover nearly every price, power, and performance level imaginable for hassle-free installation.
PowerSports & Marine Amp Kits
Competition-grade amplifier installation kits built for harsh off-road and marine environments.
Bulk Wire
An industry-leading full line of above-spec wire providing greater current capability for your sensitive electronics.
Battery Terminals
Constructed from solid brass for maximum conductivity with an industry-first flat black finish.
Fuse Holders
T-Spec’s fuse holders are designed with installer-friendly features and protect both the vehicle and aftermarket car stereo system.
Distribution Blocks
T-Spec’s low-profile designs are the most compact in the industry and constructed with solid brass for maximum conductivity.
Capacitors
T-Spec capacitors improve electrical system performance by providing a buffer between the alternator and amplifier.
Ring / Spade Terminals
Heavy-duty black and nickel-plated terminals ensure maximum power flow to your electronics when paired with T-spec wire.
Fuses
T-Spec provides competition-quality ANL, MANL, and AGU nickel-plated fuses with every amperage option needed.
Circuit Breakers
T-Spec uses top-quality materials with thoughtful designs to provide an incredibly reliable and easy to install product that will last for years.
Merchandise
Eye-catching in-store displays, apparel and merchandise will take your retail experience to the next level.
< Back VBDB4

T-SPEC’s VBDB4 is a unique distribution block that combines the most practical, sophisticated features in its class with the highest performance on the market to unleash the full power of a car audio system. Premium construction and materials allow for a highly conductive block with 5mm thick solid brass bus bars and a satin gunmetal finish, with dual 0/1 ground inputs to match the dual 0/1 positive inputs. This block also has a built-in amplification relay for boosting the current rating of the amplifier turn-on wire, distributing it across all 4 outputs. The 4 mated outputs group remote, 4ga power, and 4ga ground together for quick identification, and an anti-short sub-cover isolates the returning ground bar and terminals. A Blown Fuse Indicator (BFI) LED light for each circuit indicates which fuse to replace and 3 rapid replacement spare MANL fuse locations built into the case make replacement simple and easy. A TPE wrapped soft-touch cover completes the high-end look for this premium performance distribution block.

  • Dual 0/1 AWG positive in
  • Dual 0/1 AWG negative in
  • (4) Mated 4 AWG output sets with remote distribution
  • Built-in amplification relay for boosting the current rating of the amplifier turn-on wire, distributing it across all 4 outputs
  • Anti-short sub-cover to isolate the ground bar and terminals
  • (4) Independently MANL fused positive circuits
  • Blown Fuse Indicator (BFI) LED for each circuit
  • (3) Rapid replacement spare MANL fuse locations built inside the case
  • One tool for hardware installation using T-SPEC T20 Torx® screws with Gate Lock technology
  • Satin gunmetal finished 5mm brass bus bars for power and ground distribution
  • TPE wrapped soft-touch cover with modern aesthetics
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