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Question:

Power Cable Adaptor or Distribution Block?

I'm going to be running 1/0 gauge power wire in my car. My amp only accepts 4 gauge. Is it better to run 1 the whole way through and use power cable adaptors to fit the amp or run the 1 gauge into a distribution block that sizes the output wire down to a 4?

Answer:

either way is fine unless your total system power will exceed 3000 watts....otherwise it would be cheaper and just as good to just run the 4 all the way from the battery and use the 1/0 gauge for your big three upgrade should you be exceeding 1000 watts
1 gauge to the d-block, 4 to the amps/caps.
Basic rule of electronics: Eliminate as many connections as possible. If you are using just the one amp, it is better to use one connector that reduces the size of the wire (or just trim it down to fit) than adding two more connections (with a distribution block).

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