T-Spec designed this DB-1448 distribution block to handle the high-current grounding distribution for up to four amplifiers, while keeping your wiring connected securely and looking neat. This hefty little block combines the ground wires of up to four amps to a single grounding point. You can also use it for distributing the positive voltage in a system that doesn't need fusing at the distribution block. Solid black nickel-plated brass construction ensures reliable power flow, and an impact-resistant plastic cover protects your connections from the weather. You'll need Allen head wrenches to install this block. Warranty: 1 year.