[rant]

Everytime I turn my stereo on all I get is an extremely high pitched screeching sound! It's unbearably loud and is unaffected by the volume my stereo is at, I can even mute it and it continues. WTH is wrong with it? This is seriously pissing me off to the 3rd degree!


AHHHH!!!!


[/end rant]

 

In all speakers or just one set driven by the same amplifier?

Sounds like your headend has gone south.

 

It comes from all of the speakers. And of course, just my luck...the shop I had it installed at JUST closed about a week ago.

I'm pretty sure it's not happening with the subs, I don't think they could even attempt to play a sound like this. It's sooooo high!!! AHHH
My car is at the shop getting new brakes put on right now, I had to dis-connect my stereo so they could move the car around without their ears exploding.
If my head unit has gone bad what do I do now? The shop that put it in is gone so...I have no idea who to turn to.

 

Pull the RCA connectors from the main amplifier and see if the noise goes away. It could be your amp has gone bad. If the noise stays it's the amp.

Also check to see that there's not a Barbra Streisand CD in the player.

 

Ok well, I did a bit of trouble shooting. The problem is strange. Sometimes it will be there, sometimes it won't. Right now everything is working perfectly.

I did get it to do it again, but this time it only came from the front right tweeter, which I'm going to replace anyway because it's been really weird lately anyway(crackling or not working at all sometimes).

New question, when buying tweeters can I match any tweeter with my Diamond Audio mib-bass(or whatever the other speaker is). And should I use the crossover that comes with the new tweeter or the one that's already there?

 

Fine out what the Diamond Audio's crossover point is and find a tweeter that will go from there on up. They might even sell you a replacement one for not too much. As far as which crossover it doesn't really matter as long as you match the old tweeter's crossover point.

The tweeter might have been blown by the amplitude of the noise.

 

Ok, I'll start from there. Thanks for all your help.

 

You may also want to check to see if your gains are set properly. Samething happened to me with the loud annoying noise when the head unit was on. My gains were too high. I set them correctly and problem disappered. I have Phoenix gold amps as well.

 

Is it better to have the gains high and turn the volume up less on the head unit or keep the gains low and turn the volume on the head unit up high?

 

Don't guess on the gains. Do it right once and you won't have to touch it again.


1. Go get some test tones on CD . I can email you some test tones. PM me.

2. Set gains to ZERO (all the way left)

3. Disconnect the RCAs that send signal to your subwoofer (be sure to label them if necessary so they can be plugged back in without fuss)

4. Turn on your system, turn your volume up to 25/35 or similar (doesn't really matter, just not too high), and your sub-volume to full, if you have a separate subwoofer volume.

5. Start playing the test tone CD. For front speakers, set it to 1000hz. At this point, ensure that all EQ settings are turned off on the unit, and the volume is set correctly.

6. Walk back to the amp, and start to turn up the gain, slowly, until you hear the tone change, distort, or otherwise do anything besides get louder.

6a. If you are using a music CD, be careful and pay close attention, it will be harder to hear the distortion right away, especially if you aren't used to hearing small amounts of it in music.

7. Turn the system off, go plug back in your sub, and unplug the RCAs for your front speakers (label RCAs if necessary).

8. Repeat steps 5 and 6, this time using a tone around 50 to 60hz, until the subwoofer is maxed out. Take caution of your hearing as your ear will be right near the subwoofer playing full volume.

9. Never touch these gains again, they are set, and won't need to be changed unless you get new equipment (and if you DO get new equipment, don't forget to reset them).

10. Use the sub-w volume on your HU to blend it nicely with your music. This way it both sounds good, you have ample headroom, and you have the ability to crank it to full volume if you want to show off

Note: Subwoofer gain maybe difficult to set by ear. Some people cannot hear when a 50 - 60hz test tone begins to clip. Do your best.