multiple amp grounding

[jacka 10+ year member]

I have a D3 400.4 and I've got a D6 1500.1 coming. I was wondering how I can ground the amplifiers. I don't want to use a distribution block. I found a good ground for the 400.4, so will I be able to just stack the ring terminal from the 1500.1 ground on top of that ground? Or should I ground the 1500.1 about an inch away from the current 400.4 ground?

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[ravendarat 10+ year member]

You can stack them, but make sure you use a good lag screw to put them in or use a standard screw with lock washers.

 

[ravendarat 10+ year member]

you can gound em in the same place, as long as it's a good ground. put the 1500's ground on the bottom, tho.

Thats funny, I would have said the other way. The only reason why i would put the 4 channel on the bottom is becuase an amp running in full range or high pass is going to be more adversly affected and susseptable to ground noise over a mono block running subwoofers. Thats simply my opinion though based on personal experience

 

[helotaxi 5,000+ posts]

It's not the amp ground that typically causes the noise. It's the HU.