Powering an amp

[Marcus G.]

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

[John Greystrong]

Post by Marcus G.
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.

Post by Marcus G.
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

[Glenn Richards]

Post by John Greystrong

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).

[strawberry]

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

Post by Glenn Richards

Post by John Greystrong

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: [phone]
Squirrel Solutions http://www.squirrelsolutions.co.uk/
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