So frustrating! (mids amp issue)

[los33 10+ year member]

WTF, jinxed myself. Did it again today. I'm so stuck on what's going on. Put a rca y on ch1/2 and plugged it to my note8, ch1/2 cut off and ch 3/4 seem to play just fine.

Could this be a crossover issue from ID 6x9's? I'm just not sure that would cause all speakers but sub to flicker.

Wet crossovers can cause weird things to happen. Try connecting directly to speaker on low voltume to check if same thing happens
Sent from my Z970 using Tapatalk

 

[West1 10+ year member]

Wet crossovers can cause weird things to happen. Try connecting directly to speaker on low voltume to check if same thing happens
Sent from my Z970 using Tapatalk

Will do, thx

 

[audiobaun 5,000+ posts]

If you removed and plugged and played with the RCAs while the HU was in operation..Its possible that the PICO Fuse is blown,and the HU will have to be repaired or replaced if you dont want to get it fixed.Id try the reset button on the HU as well and reprogram your settings to see if the issue persist.NEVER/NEVER put Xovers for components in the doors .Exposes them to moisture for one, not able to access for tuning#2,and 3 possible retaining more heat with little air movement and possibility of melting the cover.I place under the dashes zip tied to the dash bracing ,and or under ea.front seats,gives me access to change tweet settings and able to make any adjustments if needed

 

[West1 10+ year member]

If you removed and plugged and played with the RCAs while the HU was in operation..Its possible that the PICO Fuse is blown,and the HU will have to be repaired or replaced if you dont want to get it fixed.Id try the reset button on the HU as well and reprogram your settings to see if the issue persist.NEVER/NEVER put Xovers for components in the doors .Exposes them to moisture for one, not able to access for tuning#2,and 3 possible retaining more heat with little air movement and possibility of melting the cover.I place under the dashes zip tied to the dash bracing ,and or under ea.front seats,gives me access to change tweet settings and able to make any adjustments if needed

I had the engine off when I connected the splitter every time.

I never thought about the location of the crossovers, I will remove them from the doors asap. Would running the 6x9's straight to the amp with bass off low/off @ amp be a good idea? Turn sub off and run 6x9's solo, this could narrow down crossover as issue right?

 

[Papermaker85 5,000+ posts]

WTF, jinxed myself. Did it again today. I'm so stuck on what's going on. Put a rca y on ch1/2 and plugged it to my note8, ch1/2 cut off and ch 3/4 seem to play just fine.

Could this be a crossover issue from ID 6x9's? I'm just not sure that would cause all speakers but sub to flicker.

basic trouble shooting. start at the SOURCE

check each output,

check each RCA on a know good channel with a know good speaker.

then check each speaker connection

then check each speaker.

 

[West1 10+ year member]

basic trouble shooting. start at the SOURCE check each output,

check each RCA on a know good channel with a know good speaker.

then check each speaker connection

then check each speaker.

I did. I reran 100% new wiring from knewkonceptz, new male & female terminals. I used 1 RCA/3.5mm splitter to each channel at the amp, ran separate times and ch1/2 were the only one to glitch. Ran front speakers (which was CH1&2) on CH3/4 with no issues.

Pulled HU, looked at RCA and one was 2 threads loose. tightened and tapped each RCA to prevent future loosening.

This is the 2nd amp that ch1/2 have issues. I am putting my luck on crossover in door panels (I hope this is it!). I have some 6 year old mq quart 6.5's I will hook up. Ill just use one screw of the 6x9 housing to hold the 6.5 with crossover and see if I have issues.

 

[Papermaker85 5,000+ posts]

I did. I reran 100% new wiring from knewkonceptz, new male & female terminals. I used 1 RCA/3.5mm splitter to each channel at the amp, ran separate times and ch1/2 were the only one to glitch. Ran front speakers (which was CH1&2) on CH3/4 with no issues. Pulled HU, looked at RCA and one was 2 threads loose. tightened and tapped each RCA to prevent future loosening.

This is the 2nd amp that ch1/2 have issues. I am putting my luck on crossover in door panels (I hope this is it!). I have some 6 year old mq quart 6.5's I will hook up. Ill just use one screw of the 6x9 housing to hold the 6.5 with crossover and see if I have issues.

by pass the xovers for troubleshooting. the xovers could but not likely be the issue. might be a bad solder joint money.

 

[West1 10+ year member]

by pass the xovers for troubleshooting. the xovers could but not likely be the issue. might be a bad solder joint money.

bad solder on the amp? I doubt 2 different amps had solder issues.

F*****k, this is so frustrating. The only consistent thing I see is having issues when volume is over 16 (I set max volume at 26, HU goes to 32). It does not do it every time I pass Vol 16 though. 4g power wire is roughly 1yr old, also from knukinceptz. Could bad/poor power wire cause 2 channels to flicker?

 

[eargj]

Pretty sure im having the same EXACT problem that you are and I made my own thread but if you findout ehat it is please let me know. Im going to change grounds and regound my head unit and try and ground my rca outputs to bypass this PICO fuse or whatever the hell it is lol.

 

[Papermaker85 5,000+ posts]

sounds like a bad driver..

 

[Jeffdachef 5,000+ posts]

Recently I had a 125.4 FSD amp go bad on me, terminals 1&2 went bad. Replaced that with a really nice zapco (about 1 month ago), hooked it up and up until 2 days ago I had no issues. Between vol 16 and 26 (26 is max I play at), channel 1 & 2 turn on and off, then it continues to ch 3 &4. Rear speakers still play but it sounds like someone is plugging and unplugging speakers. Bass does not skip a beat.
The last thing I did was rewire ch 3&4 thinking the wiring was the issue just before ch 1&2 on FSD took a dump. Since the recent issue, I pulled my HU (Pioneer NEX) and rewired highs & lows remote wire as it was 3 pieces in total. Re ground HU at chassis, clip and trim ch 1,2,3&4 on highs and open all 4 door speakers to make sure I have good connection.

ZAPCO 180x4 (forget model number)

saz1000.1

sundown shallow mount

2 ID xs69 in front

2 pioneer 6x9 5 ways in rear

Pioneer nex

XS D3100 under the hood

mechman HO alt 270

knukonceptz RCA for highs and lows.

Big 3

This is doing my brain in... anyone have any tips, recommendations or things to test/look at?

Much appreciated!!

1: Do a phone AUX to RCA y splitter test with the amp to determine if its the head unit side or the amp side. If it doesnt happen then its the head unit. If it does happen still, then its either the amp or most likely case IMO your speaker wiring, there's an open cut or short somewhere.

WTF, jinxed myself. Did it again today. I'm so stuck on what's going on. Put a rca y on ch1/2 and plugged it to my note8, ch1/2 cut off and ch 3/4 seem to play just fine.

Could this be a crossover issue from ID 6x9's? I'm just not sure that would cause all speakers but sub to flicker.

nvm you definitely have a short circuit somewhere in your speaker wiring.

If you have some spare speaker or can remove one of the speakers and get a small run of wire and connected to channels 1 and 2 then do a music test again to see if it still happens then you'll know exactly if its the amp or the speaker wiring.

Heck it might not even be the amp it could even be a bad ground.

 

[West1 10+ year member]

Thx for the replies guys. I have been very busy and have not ha a chance to do anything. With that said, I have been playing music like normal and the mids have acted up once. I have 2 spare component sets that I plan to hookup when I have the time.

1: Do a phone AUX to RCA y splitter test with the amp to determine if its the head unit side or the amp side. If it doesnt happen then its the head unit. If it does happen still, then its either the amp or most likely case IMO your speaker wiring, there's an open cut or short somewhere.


nvm you definitely have a short circuit somewhere in your speaker wiring.

If you have some spare speaker or can remove one of the speakers and get a small run of wire and connected to channels 1 and 2 then do a music test again to see if it still happens then you'll know exactly if its the amp or the speaker wiring.

Heck it might not even be the amp it could even be a bad ground.

I will try and setup the components on a short run. One thing stands out now that you mention ground... I drilled a hole through my cabin to the chasis and have 2 terminals stacked over the sanded chasis. Regular loop over sub copper terminal, I also sprayed a clear sealant over them when I first set this up to reduce/prevent rust. Fast forward and I replaced the mid ground terminal before I rewired each speaker. I'll resand the ground and polish each terminal with another spray seal, doubt this is the issue but worth a shot.

I did do the rca-3.5mm at the amp and the issue had still occurred. I have replaced all speaker wire (except tweeters from crossovers) and I will relocate the crossovers when I get a chance. Now that I mention tweets, I might as well replace tweet wiring and pray to god that's the issue.

 

[LetMyBeatPound]

Idk if this relates, but I had a battery with a bad cell in it and my subs we're working fine but I had both front and rear speakers cutting in and out went on for a bout 3 weeks before I realized it was the battery... And an other 2 or 3 weeks before the battery died out... Maybe go get your battery checked a bad cell will cause low voltage issues off n on.

 

[LetMyBeatPound]

I also went crazy rewiring everything sodering all connections putting grommets, etc... For about a week, before I was sitting listening to my ride with out it running for about 5 minutes and was so dead it wouldn't crank over it would hold and give 12-13v but the resavoir of power was substantially lowered so went the amp and subs would pull more than was able to give it was stealing or cutting off the headunits juices... Even a few times during really heavy bass songs during my headunits powered off n turned back on or would take a long time to turn on when I would first start up...

Having you maybe tried turning off the amp n seeing if this cleared up the issues with the hi's n mids?

 

[West1 10+ year member]

I also went crazy rewiring everything sodering all connections putting grommets, etc... For about a week, before I was sitting listening to my ride with out it running for about 5 minutes and was so dead it wouldn't crank over it would hold and give 12-13v but the resavoir of power was substantially lowered so went the amp and subs would pull more than was able to give it was stealing or cutting off the headunits juices... Even a few times during really heavy bass songs during my headunits powered off n turned back on or would take a long time to turn on when I would first start up...Having you maybe tried turning off the amp n seeing if this cleared up the issues with the hi's n mids?

I would hope my XS power is not the issue, its about 7 months old. New HO alt is about 5 months old and just recently started pushing power to it as I finally dropped my Sundown x10 in it. I had the issue with the SD-10 on 600rms. I guess I could always clean the battery terminals, I did spray some red sticky crap over the terminals to prevent battery buildup (no terminal buildup atm).