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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
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< Back VFDB4

The T-Spec VFDB4 Fuse Distribution Block provides protected power distribution for high-performance mobile audio systems. Designed to work with MANL fuses, it combines power splitting and circuit protection into a single, compact, installer-friendly solution.
The block accepts 1/0 to 4 AWG input and distributes it to four 4- or 8-AWG fused outputs, making it ideal for multi-amplifier installations. Solid brass construction ensures maximum conductivity, while the black nickel finish enhances durability and corrosion resistance.
Rounded set screws help protect wire strands while delivering a secure connection. A single-tool T-20 Torx design streamlines installation, and dual-size gasket sets provide a proper seal for 1/0 and 4 AWG cable. With screw-down mounting and water-resistant construction, the VFDB4 is built for reliable performance in demanding environments.

Features:
  • Works with MANL fuses
  • (1) 1/0 – 4 AWG input
  • (4) 4/8 AWG fused outputs
  • Solid brass construction for optimal conductivity
  • Black nickel finish for enhanced durability
  • Dual-size gasket sets for 1/0 and 4 AWG wire
  • Rounded set screws help prevent wire strand damage
  • Single-tool installation using T-20 Torx
  • TPE soft-touch overmold for added durability
  • Screw-down mounting for secure installation
  • Water-resistant construction
  • 1-year warranty
None at this time

Universal