amp working without ground?
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=101110
Printed Date: May 03, 2024 at 1:28 PM
Topic: amp working without ground?
Posted By: sstrawsb
Subject: amp working without ground?
Date Posted: January 13, 2008 at 10:37 AM
Whats up guys,
This has been driving me crazy for the past few days. I have a Rockford P1000-1bd and also rockfords 1F digital cap in my car. Well recently I heard the amp sparking because I thought the power wire was loose. Jumped in the trunk tightened everything down and heard it again. It only "pops" on larger bumps.
So I got back in there today to check it out again and I pulled the ground wire out and the amp still had power. ummmm... So I pulled the RCAs thinking it was getting ground from the RCAs themselves but the amp still had power. So I pulled the cap out and just ran the wires normal thinking maybe it had something to do with the Capacitor itself but still got the same thing. Its bugging the heck out of me.
Any ideas on what could be giving the amp ground? Maybe im overlooking something.
Regards,
Sean
Replies:
Posted By: DYohn
Date Posted: January 13, 2008 at 10:54 AM
The amp is defective. I smell an EBay special, but if not take it back where you bought it. ------------- Support the12volt.com
Posted By: sstrawsb
Date Posted: January 13, 2008 at 11:00 AM
the amps worked for months almost a year. I bought it back when I worked at Best Buy. ugh...
Posted By: DYohn
Date Posted: January 13, 2008 at 11:05 AM
sstrawsb wrote:
the amps worked for months almost a year. I bought it back when I worked at Best Buy. ugh...
... and now it's broken. Sorry but amps do break down. ------------- Support the12volt.com
Posted By: sstrawsb
Date Posted: January 13, 2008 at 11:08 AM
ha sorry, I know I know. I just dont want to have to go buy a new amp. Thanks tho. Can you recommend anything in particular for a 12" Rockford P3?
Posted By: ice32
Date Posted: January 14, 2008 at 2:45 AM
hey, if ya got your amp screwed to the trunk, then its most likely grounding through the amps legs or mounting points
Posted By: DYohn
Date Posted: January 14, 2008 at 11:22 AM
ice32] wrote:
ey, if ya got your amp screwed to the trunk, then its most likely grounding through the amps legs or mounting points
Yes, which means it is broken. It's not supposed to do that.  ------------- Support the12volt.com
Posted By: ice32
Date Posted: January 14, 2008 at 9:09 PM
lol, really? well then, time to replace my fleamarket amp when i get the cash
Posted By: sstrawsb
Date Posted: January 14, 2008 at 10:25 PM
the amp still work and its not screw to the trunk. lol Its on a 3/4" sheet of mdf.
Posted By: ice32
Date Posted: January 15, 2008 at 1:44 AM
 freaky lol
Posted By: KPierson
Date Posted: January 15, 2008 at 5:07 AM
How long are the screws you used to screw it to the MDF? I always thought the case of most amps was grounded? ------------- Kevin Pierson
Posted By: jeffchilcott
Date Posted: January 15, 2008 at 7:37 AM
I would really hope from all the comments that you have disconnected this amp. I have seen something similar to this before and the amp was grounding through the Remote wire back to the deck.
In the end of it all, caused damage to the amp, deck, and some pretty bad burns in the carpet!
-------------
2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place
Posted By: sstrawsb
Date Posted: January 15, 2008 at 8:46 AM
should i run a new remote wire for doodies and giggles? Or is it the amp most likely
Posted By: advanced_audio
Date Posted: January 15, 2008 at 9:30 AM
I think the conclusion is that the amp is toast.
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