Hey all, it's been awhile.
I'm slowly replacing my entire Monsoon system in my 2005.5 wagon. I have a JVC KW-R500 HU, Kenwood tweeters and woofers in the front, Infinity References in the back, stock rear tweeters, and a Rockford R2 sub with its own amp. I recently bought a Dual XPE4700 (yes, not the best, I know) amp to replace the Monsoon, and I'm having problems figuring out where these noises are coming from.
Based on some research I'm assuming the hiss I hear with the Dual is caused by a grounding loop (it doesn't change with volume, and it's there with the engine off), and the variable whine I hear when the car is on is alternator hiss. I think this has to do with the way I grounded the Dual--right now, the way it's hooked up is that the +12v and remote wires are piggybacked from my sub amp (no problems with wiring here, so I'm using it as a reference), and the ground isn't really anywhere. I tried a few different places to put the grounding wire--sharing a bolt to the chassis with the ground wire from the sub amp; a few inches away from the same place; under the spare tire; on the other side of the car where the other taillight connects. I hear that hiss everywhere I've tried. Where else could I ground it? Should I just bring in another wire to go all the way back to the battery - spot, or is that still going to cause problems?
Thanks for any advice. I know my system is a hodgepodge of random stuff, but it actually does sound really good when you ignore the hiss.
I'm slowly replacing my entire Monsoon system in my 2005.5 wagon. I have a JVC KW-R500 HU, Kenwood tweeters and woofers in the front, Infinity References in the back, stock rear tweeters, and a Rockford R2 sub with its own amp. I recently bought a Dual XPE4700 (yes, not the best, I know) amp to replace the Monsoon, and I'm having problems figuring out where these noises are coming from.
Based on some research I'm assuming the hiss I hear with the Dual is caused by a grounding loop (it doesn't change with volume, and it's there with the engine off), and the variable whine I hear when the car is on is alternator hiss. I think this has to do with the way I grounded the Dual--right now, the way it's hooked up is that the +12v and remote wires are piggybacked from my sub amp (no problems with wiring here, so I'm using it as a reference), and the ground isn't really anywhere. I tried a few different places to put the grounding wire--sharing a bolt to the chassis with the ground wire from the sub amp; a few inches away from the same place; under the spare tire; on the other side of the car where the other taillight connects. I hear that hiss everywhere I've tried. Where else could I ground it? Should I just bring in another wire to go all the way back to the battery - spot, or is that still going to cause problems?
Thanks for any advice. I know my system is a hodgepodge of random stuff, but it actually does sound really good when you ignore the hiss.