A Audio, hi-fi and car audio  forum. Audio Banter

Go Back   Home » Audio Banter forum » UK Audio Newsgroups » uk.rec.audio.car (Car Audio)
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

uk.rec.audio.car (Car Audio) (uk.rec.audio.car) Car audio systems discussion in the UK.

Powering an amp



 
 
LinkBack Thread Tools Display Modes
  #1 (permalink)  
Old September 8th 05, 11:17 PM posted to uk.rec.audio.car
Marcus G.
external usenet poster
 
Posts: 1
Default Powering an amp

Hi all

I have been given a cheap secondhand amp which I'm playing with to see if it
works. I've managed to figure out most connections, but the only ones I'm
not sure about are the power connections.

There is one terminal marked 'GND' (which I'm guessing is the earth), one
marked '+' (which I'm fairly sure is the positive feed), but the one that is
puzzling me is marked 'REM'. My best guess is that it's for a remote on/off
switch. Do I need to use it? and if not, do I need to bridge it to one of
the other contacts?

TIA,
Marcus


  #2 (permalink)  
Old September 9th 05, 05:39 AM posted to uk.rec.audio.car
John Greystrong
external usenet poster
 
Posts: 33
Default Powering an amp

Marcus G. wrote:
Hi all

I have been given a cheap secondhand amp which I'm playing with to see if it
works. I've managed to figure out most connections, but the only ones I'm
not sure about are the power connections.

There is one terminal marked 'GND' (which I'm guessing is the earth), one
marked '+' (which I'm fairly sure is the positive feed), but the one that is
puzzling me is marked 'REM'. My best guess is that it's for a remote on/off
switch. Do I need to use it?


If you want to turn the amp on, yes.

and if not, do I need to bridge it to one of
the other contacts?


You can connect it straight to the '+' but this will leave the amp on
all the time. That way lies flat batteries. Connecting it to the 'rem'
wire on your headunit would be best.

John
  #3 (permalink)  
Old September 12th 05, 08:33 AM posted to uk.rec.audio.car
Glenn Richards
external usenet poster
 
Posts: 397
Default Powering an amp

John Greystrong wrote:

and if not, do I need to bridge it to one of the other contacts?

You can connect it straight to the '+' but this will leave the amp on
all the time. That way lies flat batteries. Connecting it to the
'rem' wire on your headunit would be best.


If your head unit doesn't have a remote output then connect it to the
12V switched ignition feed so the amp comes on with the ignition. This
will save flattening the battery, although it does mean you won't be
able to use the system when the ignition's off (although with most
after-market setups you can't anyway).

--
Glenn Richards Tel: (01453) 845735
Squirrel Solutions http://www.squirrelsolutions.co.uk/

IT consultancy, hardware and software support, broadband installation
  #4 (permalink)  
Old September 28th 05, 04:29 PM posted to uk.rec.audio.car
strawberry
external usenet poster
 
Posts: 4
Default Powering an amp

or stick a switch on the cable and stick it on the same as the other feed.


"Glenn Richards" wrote in message
news:NeOdnZ2dnZ3bsoHcnZ2dnfuguN6dnZ2dRVny3Z2dnZ0@e clipse.net.uk...
John Greystrong wrote:

and if not, do I need to bridge it to one of the other contacts?

You can connect it straight to the '+' but this will leave the amp on
all the time. That way lies flat batteries. Connecting it to the
'rem' wire on your headunit would be best.


If your head unit doesn't have a remote output then connect it to the
12V switched ignition feed so the amp comes on with the ignition. This
will save flattening the battery, although it does mean you won't be
able to use the system when the ignition's off (although with most
after-market setups you can't anyway).

--
Glenn Richards Tel: (01453) 845735
Squirrel Solutions http://www.squirrelsolutions.co.uk/

IT consultancy, hardware and software support, broadband installation



 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT. The time now is 12:43 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.SEO by vBSEO 3.0.0
Copyright ©2004-2025 Audio Banter.
The comments are property of their posters.