dcs3473

I have done a complete upgrade of my audio system from front to back. Everything is working perfect except for when running the vehicle with the headlights on Low Beam there is a small buzz in the tweeters. It goes away if the vehicle is on battery power. It is also not there if I use High Beams. The sound does not change freq or loudness with pressing the accelerator.

Any ideas?

Wyo11Scab

iTrader: (1)

Make sure you have a good ground on all your equipment. List your equipment please. Some amps are known for noise.

dcs3473

Pioneer PRS80 Head Unit
NVX XCAP10H
NVX 1200.1
NVX 800.4
NVX XPS6ACT Front Stage
Sundown SA8V2 Sub
NVX XSeries Interconnects
NVX XWS12 Speaker Wire
NVX XW0 1/0 Guage Power and Ground
NVX XW4 4 Guage Power and Ground to AMPS from CAP'
.
Also found that pressing the break pedal and making the brake lights come on also makes the buzz go away

Wyo11Scab

iTrader: (1)

Check your grounds. Check where you have your power wire running. Keep it away from the RCAs. Unplug the RCAs one at a time and see if the buzz goes a way.

48ford

^^^^ this.
You could also try a ground loop isolator on the RCA's or maybe just turn down your gains on the amp a little bit

jrwithsr

dcs- I have that exact same issue.

I know my power wires are separated from rca's and run on oposite side of truck as well. Going to try unplugging one at a time.

My 4 channel i grounded it to back wall and grinded the paint down to bare metal though.

Wyo11Scab

iTrader: (1)

I googled your Pioneer HU. Others have reported that they got engine noise after adding an amp. Looks like a nice HU otherwise.

jrwithsr

Hmmm I wonder if it's a pioneer issue I have an pioneer nex5000