WaCkKoO Posted March 10, 2014 Author Report Share Posted March 10, 2014 Thanks for all the suggestions guys! Its a really nice day today, so I'm going to play some music later and try to recreate the problem. I'll start unplugging RCA's once I hear it, and see if the noise goes away, but if I remember correctly, I've tried tried disconnecting the RCA's at the amplifier, and the noise still stayed Maybe I'll get some pictures of my grounds as well, and see what you guys think of 'em! Thanks so far! Link to comment Share on other sites More sharing options...
WaCkKoO Posted March 11, 2014 Author Report Share Posted March 11, 2014 Well, I could not (for once) recreate the noise! Maybe it had something to do with the line driver I removed? Dunno! But I listened to it for a while, on all different sources, and I gave the amp a few taps and moved it around a little. I also jiggled my LC-1 and the connected RCA's. I guess this is a good thing that I couldn't get it to come back! I did also change the mounting from the back of my seat to flat on the floor of the trunk. But here are pictures of my grounds, you guys can tell me what ya think! This is the amplifier ground to the seat belt. The metal on the bottom was sanded down, no paint. This is the radio's ground is on the negative battery terminal. I did this (along with the radio's power) because I had extra wire to use and I wanted the most amount of power to the radio, seeing as I was getting some suspicious voltage drop at the radio. Hopefully this isn't a "no-no". Link to comment Share on other sites More sharing options...
jarrius Posted March 12, 2014 Report Share Posted March 12, 2014 Yes that ground is a no no. 2012 Chevy sonic1xSQ HDC3 12 D2RF R1200d 140 square foot of Q-Mat(soon to be installed) 140.2Db sealed on the dash with TL 142 DB sealed on the dash with another meter (was dead on with the TL at a show i was at) 141 on music. strangeduck,on 02 Jan 2014 - 01:39 AM, said: when my car spins out i just put the car in neutral, turn in the direction i want to go and pucker my asshole Link to comment Share on other sites More sharing options...
WaCkKoO Posted March 12, 2014 Author Report Share Posted March 12, 2014 My radio's ground? Shoot. Why's that? Oh, and the mysterious noise reappeared this morning for no apparent reason Link to comment Share on other sites More sharing options...
jarrius Posted March 12, 2014 Report Share Posted March 12, 2014 Ground to your amp is a no no IMO. I would have just wired your radio like normal and not ran the other wires but that's just me 2012 Chevy sonic1xSQ HDC3 12 D2RF R1200d 140 square foot of Q-Mat(soon to be installed) 140.2Db sealed on the dash with TL 142 DB sealed on the dash with another meter (was dead on with the TL at a show i was at) 141 on music. strangeduck,on 02 Jan 2014 - 01:39 AM, said: when my car spins out i just put the car in neutral, turn in the direction i want to go and pucker my asshole Link to comment Share on other sites More sharing options...
WaCkKoO Posted February 11, 2015 Author Report Share Posted February 11, 2015 Not meaning to dig up an insanely old post, but I have found the very interesting solution! I was told that the high pitched noise could be coming from a loose toroid transformer inside the amplifier (the wire wrapped doughnut looking thing). I was told it increases the voltage quite a bit, and if it is loose, could be causing that high pitched noise since it could be moving in the neighborhood of a few thousand Hz. I went to the hardware store looking for some sort of adhesive or coating to cover the suspect toroid, and I ended up with a little bottle of home liquid nails that claimed it had extreme temperature protection. I opened up the amp and poked at the (pretty sure only) toroid transformer inside and to my delight, found one strand looser than the others (one connecting the toroid to the board). I put a nice amount of glue on it and let it sit for a day, and now the noise is finally gone!!! Thought I would put this out there just on the off chance someone else has the same issue! Sorry, I forgot to take pictures! Link to comment Share on other sites More sharing options...
Colin - STAPUFT Posted February 11, 2015 Report Share Posted February 11, 2015 Not meaning to dig up an insanely old post, but I have found the very interesting solution! I was told that the high pitched noise could be coming from a loose toroid transformer inside the amplifier (the wire wrapped doughnut looking thing). I was told it increases the voltage quite a bit, and if it is loose, could be causing that high pitched noise since it could be moving in the neighborhood of a few thousand Hz. I went to the hardware store looking for some sort of adhesive or coating to cover the suspect toroid, and I ended up with a little bottle of home liquid nails that claimed it had extreme temperature protection. I opened up the amp and poked at the (pretty sure only) toroid transformer inside and to my delight, found one strand looser than the others (one connecting the toroid to the board). I put a nice amount of glue on it and let it sit for a day, and now the noise is finally gone!!! Thought I would put this out there just on the off chance someone else has the same issue! Sorry, I forgot to take pictures! Good detective work! Good stuff to know too. 12 - 12"s in the STAY PUFT 1989 Chevy Astro Build & Comment Log Un-Interrupted Build LogYouTube Channel Chevy Trailblazer 5.1 Dolby Digital DTS Install You have a beard of a mysterious sea captain. I would follow you to hell and back. Link to comment Share on other sites More sharing options...
Smoove Posted February 11, 2015 Report Share Posted February 11, 2015 Not meaning to dig up an insanely old post, but I have found the very interesting solution! I was told that the high pitched noise could be coming from a loose toroid transformer inside the amplifier (the wire wrapped doughnut looking thing). I was told it increases the voltage quite a bit, and if it is loose, could be causing that high pitched noise since it could be moving in the neighborhood of a few thousand Hz. I went to the hardware store looking for some sort of adhesive or coating to cover the suspect toroid, and I ended up with a little bottle of home liquid nails that claimed it had extreme temperature protection. I opened up the amp and poked at the (pretty sure only) toroid transformer inside and to my delight, found one strand looser than the others (one connecting the toroid to the board). I put a nice amount of glue on it and let it sit for a day, and now the noise is finally gone!!! Thought I would put this out there just on the off chance someone else has the same issue! Sorry, I forgot to take pictures! Thank you for the follow up. Good work 2 Team Fi 15's v1 2 DD M5's 970amps of Alt 6th order blowthroughThe truck Blowthrough build : http://www.stevemeadedesigns.com/board/topic/155555-smooves-1996-chevy-ext-cab-c1500-slow-build/The 350z build : http://www.stevemeadedesigns.com/board/topic/170694-smooves-2003-nissan-350z/ My FB page https://www.facebook.com/pages/Smooves-Car-Audio-and-performance/719746144805343 Team Fi Audio http://www.ficaraudio.com/ Link to comment Share on other sites More sharing options...
CstrokerV Posted February 12, 2015 Report Share Posted February 12, 2015 l my friend does that.... but there is something loose in his we can smack it and the noise stops... my build http://www.stevemeadedesigns.com/board/topic/142505-small-build-log-4-dc-lvl3-10s-tl-update-link-to-rebuild/ http://www.stevemeadedesigns.com/board/topic/154258-rebuild-6-lvl3-12s-update-small-video-nothing-spectacular/ new build http://www.stevemeadedesigns.com/board/topic/188181-03-trailblazer-slow-build-8-dc-lvl3-12-m1-motor-m2-parts/ Link to comment Share on other sites More sharing options...
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