posted
i recently built a wall in my car and am driving 2 dd 15's with 4 earthquake ph5000d's when i would burp it i could hear noise out of the car but that didnt matter cause i was burping....well as things go i wanted to play music and damn i had a shi+ pot of noise had to turn the volume up to almost 20 just to pass the noise....i tried everyhting that i could think of....to no availe. that is when one of the members of my team suggested wrapping a wire around the neg on the rca and attaching it to the cars ground.low and behold 99% of the noise went away. Have any of you done this before and did it kill anything by doing it??????WTF???????
-------------------- TEAM STETSOM USA First to Compete with Stetsom Amps in the USA 150+ with a Grand Funk Railroad song 2005 Db Drag World Finalist SS 1-2 NW 9th Place 151.1 db 2006 NSPL Maryland State Record 157.9 db 2006 DbDrag World Finals Competitor SS 1-2 8 th Place 159.9 db 2007 NSPL Maryland State Record 160.3 2007 NSPL World Record 2400 amp ama 160.3( that didnt last long) 2008 Maryland State Record 159.6 2008 World Finals (burnt shi+ up) TEAM STINGER MARYLANDS LOUDEST DAILY DRIVER Posts: 784 | From: Glands Burning Maryland | Registered: Oct 2005
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posted
I've had to do this in a few cars I worked on. Did not hurt anything while having the drain wire connected, but installing better RCA's in some of those same vehicles kept the noise away without use of a drain wire.
Also, do you have your head unit grounded through the vehicle wiring harness? I've had to redo my ground in my car pulling it off of the wiring harness and directly grounding the wire to bare metal. Took away a significant portion of the noise and made the radio's display brighter.
posted
a pioneer dehp 80 mp and the rca's are stinger professionals $125 each. i am still flucked up over that shi+. but it worked......
-------------------- TEAM STETSOM USA First to Compete with Stetsom Amps in the USA 150+ with a Grand Funk Railroad song 2005 Db Drag World Finalist SS 1-2 NW 9th Place 151.1 db 2006 NSPL Maryland State Record 157.9 db 2006 DbDrag World Finals Competitor SS 1-2 8 th Place 159.9 db 2007 NSPL Maryland State Record 160.3 2007 NSPL World Record 2400 amp ama 160.3( that didnt last long) 2008 Maryland State Record 159.6 2008 World Finals (burnt shi+ up) TEAM STINGER MARYLANDS LOUDEST DAILY DRIVER Posts: 784 | From: Glands Burning Maryland | Registered: Oct 2005
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Also, do you have your head unit grounded through the vehicle wiring harness? I've had to redo my ground in my car pulling it off of the wiring harness and directly grounding the wire to bare metal. Took away a significant portion of the noise and made the radio's display brighter.
^^ This is frequently the problem
Posts: 2276 | From: East | Registered: Jan 2003
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quote:Originally posted by heywood jablome: a pioneer dehp 80 mp and the rca's are stinger professionals $125 each. i am still flucked up over that shi+. but it worked......
I have had to return that exact unit 2 times with the same problem you described.
-------------------- Team Funkin Audio Team Kinetik Power Team Tsunami "Obssesed is a word the lazy use to describe the dedicated." http://www.cardomain.com/memberpage/629701 Posts: 972 | From: Cleveland, TN | Registered: Nov 2004
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posted
we sell alot of pioneer and we see them come back way to often for us to do this, the ground shield goes bad in the deck for the rcas, its a simple fix but just sucks when it happens. simple things like plugging the rcas in while the deck is on can cause it.
-------------------- WWW.DCSOUNDLAB.COM Team Hifonics Voted 2004 DB Drag Rookie of the year 2004 World Finals 3rd place finish SS1-2NW 2005 World Finals 4th place finish SS1-2NW 2006 World Finals 3rd place finish SS3-4 2006 Super Street DeathMatch Participant 2007 Super Street 3-4 163.1 with 2 amps 2007 West Coast SS3-4 Champion Posts: 2793 | From: West Coast | Registered: Nov 2003
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posted
one of those things where if you put the wire on before you get the problem (as a precaution), you'll get horrible noise. so you wait for the deck to do it's thing and then use the wire.
a long time ago when i first encountered this, i went a few rounds with pioneer. first they denied anything wrong with their units and supposedly tested one's i sent back and told me they were good and i was the only one sending them back for this.
so i got the bad units back and still same thing. then they claim that it's because their H/U are designed to run with their amps and it's probably the amps we were using weren't designed to run with their rca ground system.
i thought that problem had been solved this year, but if other people are still having problems, i guess not.
Posts: 540 | From: nor cal | Registered: Aug 2004
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quote:Originally posted by 95stroked1500: a long time ago when i first encountered this, i went a few rounds with pioneer. first they denied anything wrong with their units and supposedly tested one's i sent back and told me they were good and i was the only one sending them back for this.
so i got the bad units back and still same thing. then they claim that it's because their H/U are designed to run with their amps and it's probably the amps we were using weren't designed to run with their rca ground system.
I've shot holes in that theory because I've witnessed the same problem with someone using that same head unit with two Pioneer Premier amps and still the same obnoxious noise. In his it happens with the car on or off. Jumping RCA's from my car's head unit to his amps, there was no noise at all, car on or off.
posted
i dont think its the deck, the problem stems from haveing the gain jacked up and it picking up more noise. i run a panasonic deck and i get the same thing.i turn down my gains and it goes away. the wire tells me you have a grounding issue with the rcas. by doing that (grounding the rcas sheild at the deck)your are eliminating a huge ground loop which is acting as an antenna. solved my problems many times.
Posts: 42 | From: conway, arkansas | Registered: Feb 2006
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posted
gains up too much can pick up noise. but what we are discussing is an imfamous pioneer problem that occurs.
Mr.C- i told them the same thing. all they wanted to do is try and put the blame back on me and not fess up to their h/u having a problem.
Posts: 540 | From: nor cal | Registered: Aug 2004
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posted
yeah but what i was trying to say i guess is my panasonic does the same thing,its a grounding issue. some decks just tend to be more subseptable to it.
Posts: 42 | From: conway, arkansas | Registered: Feb 2006
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posted
recently at a show at border motorsports, Ryan told me that the pioneer headunits distort the signal before you reach your volume. has anyone tested this with the pioneer headunits? he said he uses an o-scope......Unfortunately i am without an o-scope....and i use the pioneer headunit outboard for burping. with a cleaner signal i should get some increase in spl......right????any comments???
-------------------- TEAM STETSOM USA First to Compete with Stetsom Amps in the USA 150+ with a Grand Funk Railroad song 2005 Db Drag World Finalist SS 1-2 NW 9th Place 151.1 db 2006 NSPL Maryland State Record 157.9 db 2006 DbDrag World Finals Competitor SS 1-2 8 th Place 159.9 db 2007 NSPL Maryland State Record 160.3 2007 NSPL World Record 2400 amp ama 160.3( that didnt last long) 2008 Maryland State Record 159.6 2008 World Finals (burnt shi+ up) TEAM STINGER MARYLANDS LOUDEST DAILY DRIVER Posts: 784 | From: Glands Burning Maryland | Registered: Oct 2005
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posted
im having the same problem i have a pioneer dehp8400 mp its doing the same daggum thing. im gonna try grounding it out tonight and we'll see what happens ill let you all know thanks for the inputs!
Posts: 4 | From: Prattville Alabama | Registered: May 2006
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posted
well at SVR i was tuning before going into qualifying round and i smell this rancid smell and look over at my head unit and AAHHHH the dreaded smoke......another pioneer bit the dust. well cured my noise problem......went into the arena and a vendor had a bottom of the line panasonic h/u for $100.(shi+ i shulda got kissed for that fuken).....but bought it anyway and used it without any problems.... think my days with pioneer are done.......then i get home and hear the pioneer truck caught fire on the way home.....sort of ironic....sorry for scotts luck though. i got out for one h/u.......look at his loss.......damn!
-------------------- TEAM STETSOM USA First to Compete with Stetsom Amps in the USA 150+ with a Grand Funk Railroad song 2005 Db Drag World Finalist SS 1-2 NW 9th Place 151.1 db 2006 NSPL Maryland State Record 157.9 db 2006 DbDrag World Finals Competitor SS 1-2 8 th Place 159.9 db 2007 NSPL Maryland State Record 160.3 2007 NSPL World Record 2400 amp ama 160.3( that didnt last long) 2008 Maryland State Record 159.6 2008 World Finals (burnt shi+ up) TEAM STINGER MARYLANDS LOUDEST DAILY DRIVER Posts: 784 | From: Glands Burning Maryland | Registered: Oct 2005
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posted
i yanked my brand new 780 out today for the same problem. sucks cause i really liked that deck.
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Posts: 906 | From: bainbrige, ga | Registered: Jun 2002
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posted
the pioneer radios have an internal ground that will burn out when your amp has a bad ground, the amp will try to ground itself through the shield of the rca wires & it will burn out this ground in the deck. i have seen this many times, the best way to fix this is to ground the shield of the rcas to the back of the head unit. this will not harm the amp or head unit.
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posted
reason i sell the entry level for cheap but to people that will never use the rca's...
Posts: 6348 | From: north rose,ny | Registered: Aug 2002
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posted
so i grounded my sheild on my rca's and the noise got worsE? i think im getting a new deck this week, i love warrenty's
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