Issue With Stereo Install

[Bellato]

So I bought all my sound system gear last weekend and got too putting it all together and well it doesn't work.

My gear:

Clarion dpx1851 mono amp

Nakamichi pm400.4 amp

Precision power a12 sub

Polk coaxials db651

Polk components db 6501

Aerpro apu8sum (line level converter)

Now I've done a few installs before but this is the first time I've use this kind of line level converter, it runs off power and has seperate inputs for different speakers. I've only ever used one that uses one speaker input.

The issue being that the 8sum works (lights up) fine until I earth the amps. I've tried just one amp, then the other and same result! The thing that I don't get is that no fuses are being blown (got fuses in both amps, the 8sum and in the power wiring) so makes me think its not actually a short?

Anyone had an issue like this before?

Note the amps run on a brand new 0 gauge wiring kit with gold plated RCA's and all speakers are hooked up with 14 gauge wire from the amps (all new wire the whole way). The only existing wires used are the speaker inputs which go into the 8sum

[old_mate]

does it still do it with the RCA's from the converter to the amps disconnected?

[Bellato]

Nah the 8sum turns off once the rca's are disconnected

[old_mate]

sounds like either the RCA's on the amps are farked (unlikely) or your 8sum is farked. You definately have the amps remote on line connected properly?

[Bellato]

Yea I'm thinkin its the 8sum because it would be rare for both sets of rca's to be stuffed. My old man reckons it could be something to do with the speaker wires in that they could be shorting somewhere but again the chance of that happening on both the speakers and the sub is rare.

The remote line is pushed in behind a fuse that is accessory power, I haven't checked it too see if somethings wrong there but shouldn't be.

I'm going to go buy a basic line level converter 2moro and try install it instead n see if it works then

[old_mate]

Remote in should connect to 8sum to tell the amps to switch on

[Bellato]

I wasn't sure if there was a remote trigger for the 8sum but that now makes sense! That's gonna be what I try first, thanks heaps mate!

[Bellato]

Problem solved! Had to run the trigger wire from an accessory through the 8sum then onto the amps!

On a side note I have a lot of static, especially at lower volumes, any ideas? I think I'm going to go back through and double check the speaker connections because I've already checked all the other connections and they're all good

[old_mate]

bazinga!

The noise is due to the fact the Ford ICC is actually sh*thouse. Make sure power is all segregated from speaker wires, yadda yadda yadda, reset all ICC settings to flat, see how you go. It will more than likely still hiss at you.

Edited 12/01/13 09:34 AM by old_mate

[Panda Eyes]

yep, and cheaper high level converters have never been great on output levels- seem to drop, so you have to wind the volume up and the signal to noise ratio is exagerated...