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Amp Wiring

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JayAz

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Currently I have 4AWG Power and Ground Wires connected to a JL 300/4v2. 4 Speakers, all 4 ohms. no problems

I have a JL 8W7 (3ohm), JL 250/1v2 amplifier, and a 1 Farad capacitor that I want to add.

Can I run the existing 4AWG (+) to a power distribution block and split it into 2 more 4AWG connections for both amps? 80A fuse at the battery and 40A fuses from the distribution block.
 


you're not gonna have a problem to add a second amp. personally i would probably put the main fuse at 100A with the secondary fuses that come after the distribution block at 50A. i had two jensen 650 watt amps and my power wire going to my amps from the distribution block i used 8AWG with my main one was 4AWG. it would also be a good idea to use a distribution block for your grounds as well that way you only have one grounding point at the chassis. again with my ground distribution i used 4AWG for the main ground wire and 8AWG going to the amps from the distribution block. don't forget to tie your remote wires into the main one.hope this isn't too confusing.
 
yes 4 gauge is fine...you don't need secondary fuses just make sure you have a fuse on the power wire up close to the battery (any wire between the battery and the fuse is obviously not a fused link, so if it shorts out it will cause a fire) The only reason for line fuses is to protect against shorts in the power wire, amps have their own fuses for protection. Fused distribution blocks are pointless...
 
i wasn't talking about a fused distribution block. i was talking about putting the fuse after the distribution block
 
crshoveride said:
i wasn't talking about a fused distribution block. i was talking about putting the fuse after the distribution block
Click to expand...

oh in that case don't worry about using any fuses past the main fuse at the battery, they don't help protect anything. If the line shorts out your main fuse will blow instantly weather its a 20A fuse or a 150A fuse...and that's all your looking to do is protect against dead shorts in the power line to prevent a fire...as i said most amps have their own fuses so they are already protected.
 
One inline fuse about a foot or less to battery is perfect. you can set up a distro for your ground. But the best bet is ground individually. I have run 0 guage front to back and used 0 guage for my ground. which is overkill. but in the end will be perfect for what I iwll be using it for.
 


Thanks for the advice:

I'm going to keep it all 4 gauge.
80A at the battery.
Power and Ground will run to 1F capacitor.
From here, each line (+-) will either run to a StreetWires Combo distribution (CBR44A)block, or to a couple of T connectors with 40A in-line fuses.
Then run to the amps.

I've added an Exide sealed battery (ORB78DT-84), and looking for some 1/0 gauge wire to do the big 3.
 
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