Kenzie
Member
Registered: 16th Sep 07
Location: Burnley
User status: Offline
|
I have decided to amp my door speakers which are a pair of Ground Zero's.
This is how ive wired it up (apologies for the ropey diagram!):
Next to the battery is a 60 amp fuse,
This then goes into a distribution block, (for another amp to power a sub at a later date) with another two 60 amp fuses.
It all worked fine for one day, but now it just sounds like the speakers are submerged in water 
Its also picking up some sort of interference from somewhere but i dont have a clue where!
The amp isnt on 'protect' or anything.
Anybody have any ideas?? Thanks in advance 
[Edited on 24-05-2009 by Kenzie]
|
Jonny.N
Member
Registered: 10th Sep 08
Location: scotland
User status: Offline
|
have you ran the phono leads power etc all down the one side?
|
FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
|
intereferenc? altentaor wine? running power AND signal ables down both sides, if so do on each side, and if that failz, get a groud loop isolator for the altenator, dunno bwt thesubmerged problem though, play with the amps settings? check connections?
|
Kenzie
Member
Registered: 16th Sep 07
Location: Burnley
User status: Offline
|
No, the power lead is down one side, with the rest on the other mate.
The interference is like a funny whining sound thats constantly changing pitch, even with the engine turned off.
[Edited on 24-05-2009 by Kenzie]
|
FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
|
dont know then if ignitins off sorry, check earth?
|
Kenzie
Member
Registered: 16th Sep 07
Location: Burnley
User status: Offline
|
Ive checked the earth, it looked OK, but I took it off and cleaned it up some more just to make sure, but with no improvement.
Faulty headunit possibly?
|
FAZ
Premium Member
Registered: 24th Nov 07
Location: Coventry
User status: Offline
|
try some one elses wouldnt hurt
|
Steveocee
Member
Registered: 19th Jun 08
User status: Offline
|
If you are getting interferance try a different set of RCA's. Alot of people will straight away start banging on about isolators and suppressors when in reality you may just have a duff cable. It depends on what kind of wiring kit you have used but generally if its one of the pre-made kits then the RCA's arent usually that reliable.
As for the speakers sounding "off" try swapping the polarities, and make sure there aren't any filters switched on at the amp.
Steve
|
DirtyDetail
Member
Registered: 26th Jan 09
User status: Offline
|
I once had that annoying sound on my standard setup and it was the fuse in the main fuse area that governed the audio system. It was weird because it sounded like the car was revving through the speakers sometimes.
Im sure its something simple as per the above.
|
Kenzie
Member
Registered: 16th Sep 07
Location: Burnley
User status: Offline
|
Ive swapped the polarities around and that seems to have done the trick. 
I just dont understand how it worked for a day and then gave up! Ill see how this goes. Thanks for the help chaps.
|
Kenzie
Member
Registered: 16th Sep 07
Location: Burnley
User status: Offline
|
Well it worked until I started the engine. Im now picking up some interference from somewhere which increases with the revs.
Anybody got any ideas? As the RCA's are nowhere near the power cable :s
|
Steveocee
Member
Registered: 19th Jun 08
User status: Offline
|
Try a new rca cable?
|
sampayne21
Member
Registered: 3rd Sep 08
Location: Sidcup Kent Drives: BMW E46
User status: Offline
|
quote:
Originally posted by Kenzie
Well it worked until I started the engine. Im now picking up some interference from somewhere which increases with the revs.
Anybody got any ideas? As the RCA's are nowhere near the power cable :s
sound like a whining noice increasing with revs? try a supresser sometimes it can get rid of it
|
sand-eel
Member
Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
User status: Offline
|
Get a power cap, it makes the amp more powerful, less strain on battery, and reduces noise.
|
Steveocee
Member
Registered: 19th Jun 08
User status: Offline
|
quote:
Originally posted by sand-eel
Get a power cap, it makes the amp more powerful, less strain on battery, and reduces noise.
Never heard of that before !!
|
Kenzie
Member
Registered: 16th Sep 07
Location: Burnley
User status: Offline
|
So a supressor may possibly solve it?
As ive checked the earth and its spot on.
|
Kenzie
Member
Registered: 16th Sep 07
Location: Burnley
User status: Offline
|
Right, ive got a ground loop isolator on the RCA's now, and the initial buzzing has gone, but a new problem has arisen!
Anytime the CD player is on (with either ignition on or off) there is a high pitched 'squeal' sound continuously.
The speaker wire that goes to the passenger side speaker is running behind the dash and just under the glovebox. If i move this wiring the pitch changes, sort of like its picking up interference from the vehicles loom. Even though the engine is off.
This is blowing my mind lol! 
[Edited on 08-06-2009 by Kenzie]
|
chloe16v
Member
Registered: 29th Nov 07
Location: Rotherham
User status: Offline
|
how good are the speakers if you dont mind me asking, i have been looking at some ground zeros
|
Kenzie
Member
Registered: 16th Sep 07
Location: Burnley
User status: Offline
|
Spot on mate, cant fault them. Not sure of the exact model I have in but could find out if you like (ill have to have a rummage in the attic for the box!!)
|
