Tweeter static troubleshooting
12-12-2004, 11:32 AM
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Tweeter static troubleshooting
OK, just finished a weekend install on my Enthusiast. I replaced the door mid and tweeter with a Cadence mid and tweeter component set. I'm driving it with a 65W RMS/Channel amp. I have RF 6.5" component mids in the back running off the clarion factory head unit. When playing a CD, it is SWEEET! I'm very pleased with the upgrade. The only think I think I will do from here is put in a second small amp to drive the rear RFs, but that can wait.
Here is my problem. I have a 12 disk JVC MP3 changer running through an FM modulator. The tweeters pop a bit with a static sound on the high notes. I fiddled with the FM modulator frequency output but couldn't resolve it. Again, the sound is not present when playing straight from the CD player in the head unit. So I figure the static artifact is from the digital mp3 format or due to the FM modulator. Any suggested next steps?
Like a lot of people, I'm really trying to retain the stock head unit, but I really like having every song I own in the car on 12 neat little CDs that I never have to mess with. The Enthusiast Clarion head unit has a CD changer input, but it is the Nissan N-bus adapter. I found the pinout for it, so I could theoretically hardwire my changer, but I can't find the pinout for the JVC J-link line. I would need right and left inputs +/- and an aux in signal to get the Clarion head unit to recognize that it is receiving feed from the changer input. Given these roadblocks, I think my next move would be to get a JVC receiver to go with the JVC changer.
On a side note, does anyone know of an aftermarket double-din head unit/MP3 changer? I guess if I had to change out the head unit, replacing it with something that would fill the whole space instead of a useless shelf might help the visual appeal.
Here is my problem. I have a 12 disk JVC MP3 changer running through an FM modulator. The tweeters pop a bit with a static sound on the high notes. I fiddled with the FM modulator frequency output but couldn't resolve it. Again, the sound is not present when playing straight from the CD player in the head unit. So I figure the static artifact is from the digital mp3 format or due to the FM modulator. Any suggested next steps?
Like a lot of people, I'm really trying to retain the stock head unit, but I really like having every song I own in the car on 12 neat little CDs that I never have to mess with. The Enthusiast Clarion head unit has a CD changer input, but it is the Nissan N-bus adapter. I found the pinout for it, so I could theoretically hardwire my changer, but I can't find the pinout for the JVC J-link line. I would need right and left inputs +/- and an aux in signal to get the Clarion head unit to recognize that it is receiving feed from the changer input. Given these roadblocks, I think my next move would be to get a JVC receiver to go with the JVC changer.
On a side note, does anyone know of an aftermarket double-din head unit/MP3 changer? I guess if I had to change out the head unit, replacing it with something that would fill the whole space instead of a useless shelf might help the visual appeal.
12-12-2004, 01:36 PM
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I've never heard great reviews for any modulators. But, there's always the Kenwood 7015. You can burn your mp3s onto DVD and play it off the kenwood, assuming you have a dvd burner.
12-12-2004, 02:52 PM
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You are over driving the modulator. I hate those things. Never heard of the JVC mp3 changer, I asume you can turn it down?
Last edited by Ahsmo; 12-12-2004 at 02:55 PM.
12-12-2004, 03:01 PM
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Did a google search, you can get it at best buy.com
http://www.bestbuy.com/site/olspage....&ref=03&loc=01
Ahsmo,
Were you asking about my setup? I'm gonna take new pics, maybe today and post em up.
https://my350z.com/forum/showthread....threadid=74073
http://www.bestbuy.com/site/olspage....&ref=03&loc=01
Ahsmo,
Were you asking about my setup? I'm gonna take new pics, maybe today and post em up.
https://my350z.com/forum/showthread....threadid=74073
12-12-2004, 03:23 PM
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oh that, confused me I thought he was talking about a mp3 player
what components did you use? Those xtant amps are pretty clean amps...looks impressive. I usually dont car for fibglass dashes but that looks really nice
Are you stationed in hawaii?
back to the thread. I would suggest getting a gain control **** to lower the gain a bit on the rcas from the changer into the modulator.this thing would work
what components did you use? Those xtant amps are pretty clean amps...looks impressive. I usually dont car for fibglass dashes but that looks really nice
Are you stationed in hawaii?
back to the thread. I would suggest getting a gain control **** to lower the gain a bit on the rcas from the changer into the modulator.this thing would work
Last edited by Ahsmo; 12-12-2004 at 03:36 PM.
12-12-2004, 04:52 PM
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Thanks guys. I turned down the signal to the FM modulator to about 45% of where I originally had it. This eliminated the tweeter pop/static. Then I was able to turn the gain up on the amp and the music came back to life. I do this every time, I tune the system to a CD then I go to the MP3s through the FM mod and grimace. All better now. Thanks!
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