Sigh, mounting an amp on metal?

[Stomis]

Ok so I know that I built my box today. Got my sub, wired everything up and not a thing came out of my sub. On further inspection/research I find that apparently mounting my metal amplifier to my metal body is a big no no and grounds the thing out before the power even hits the circuits.

Is this whats causing my to get nothing out of my amp? I tested the ground and power and they are fine.

 

[lectric80]

It is a factor, but I can't say for certain that it is what is causing the amp to fail. Try using some simple wood mounts attached to the steel, then the amp mounted to them. Make sure your bolts don't pass completely through the wood to the steel. If this doesn't work, try just setting the amp on a seat or other non-conductive surface, and see if it will work that way. If not there is something more wrong.

 

[dhcomp]

although i don't think its advised to bolt to metal, i've never done anything else, and never had a problem. I don't reccomend it, but it sounds like you have other problems.

 

[cdoggwsu]

Unless there is something inside the amp that is shorting out, or your power wire is touching something it shouldn't there isn't any reason that mounting your amp directly to the metal would cause a problem. The ground wire that you are hooking up to the amp is most likely tied to the chassis of the amplifier on the inside anyway and it's all going back to the same negative terminal on your battery. Check your preamp and sub wiring connections especially between the external connectors on the sub box and the terminals on the back of the sub itself. Also check to make sure the pre-amp for the sub is enabled on the deck and the volume is at a sufficient level. I know some of them are off by default.

If there is a short in the amp, yes this could be a problem...but I have never heard of anything grounding out before the power hits the circuits. It doesn't really work that way.

 

[dhcomp]

you sure your remote turn on lead has power? Bridge it to the regular + terminal on the amp to check.

 

[Stomis]

you sure your remote turn on lead has power? Bridge it to the regular + terminal on the amp to check.

Yep that struck me today and thats what it was. Apparently my headunit is so simple that the amp remote on the harness doesnt even go to anything in the back of my head unit. I just ran a wire from ignition to the REM terminal and wahlah its sounds friggin awesome.

 

[dhcomp]

lol, sweet. Glad you got it going