I'm about to install a Dominator 2x200w amp to power a Clarion 12" 600W sub in enclosure.

My headunit has an RCA preout for subwoofer, so I've wired that to the left channel input of the amp and wired the left channel output of the amp to the sub. So the right channel of the amp is not being used at all, until maybe i get another identical sub.

Anyway, I want to wire up the amp's power myself. From searching the forums I know that one wire goes straight to the battery with a fuse about 30cm from the battery, but here's a couple of questions that I need clarified.

- Which terminals mean what on the amp, and what do they need to be connected to: "GND", "REM", "B+"... At a guess I'd say GND was ground and just needs to be wired to the chassis, and B+ is the wire to the battery... but what is REM?

- What gauge wire should I use, and what size fuse on the wire. (given the amp is 2x200W)

Thanks in advance.

gnd = ground
rem = remote wire (connects to your head unit acessory wire to tell the amps when to turn on)
+b, +ve, +12, 12V.. are all the direct power from your battery.

an 8gauge cable from battery and a 5AG (round fuse) fuse holder, and 60A fuse will be suitable, and cheap :) should be able to pick up a kit with 6m 8ga cable, fuse, fuse holder, rca cable, and remote wire for $40 from JB hifi or something similar, much cheaper than they rip off prices of cable alone.

gnd = ground
rem = remote wire (connects to your head unit acessory wire to tell the amps when to turn on)
+b, +ve, +12, 12V.. are all the direct power from your battery.

an 8gauge cable from battery and a 5AG (round fuse) fuse holder, and 60A fuse will be suitable, and cheap :) should be able to pick up a kit with 6m 8ga cable, fuse, fuse holder, rca cable, and remote wire for $40 from JB hifi or something similar, much cheaper than they rip off prices of cable alone.
What he said lol. Autobarn sell aerpro wiring kits for about $40 for an 8guage kit, comes with everything you need, just bought one for the mrs.

One other thing though, you should be able to bridge your amp into 1 channel and run the one sub bridged, will give you double the power into the sub and will go abit louder.

One other thing though, you should be able to bridge your amp into 1 channel and run the one sub bridged, will give you double the power into the sub and will go abit louder.

if its a 2ch amp than yes it can be done, but if its a 4ch then you can only use 2 channels as they are the only ones receiving a signal,
but i take it he is using a 2ch amp for his sub?

Thanks for the info guys


you should be able to bridge your amp into 1 channel and run the one sub bridged, will give you double the power into the sub and will go abit louder.

I would bridge the two channel output, but will it work if the amp is only recieving input on one channel?

The headunit only has one subwoofer preout so I assume its for both channels?

if the amp only had 1 set of RCA input and its a 2ch amp then both channels will work.
1 RCA plug is used for 1channel eg. RCA have two plugs 1 red and 1 white, 1 plug = 1 channel
its only different if you have a monoblock where as you need both plugs in the amp to power the one channel output

Yeah, but I'm only providing input on one channel. I'm running a single RCA lead (one plug) from the headunit's preout, to one channel of the amp (red). The other channel input on the amp (white socket) remains unconnected to anything.

So can I bridge the two channel output into one channel even though there is input from the headunit on only one channel.

you need both plugs, plugged into the amp for both channels to work
red and white plugged into the amp

Ahhhh OK, I get it now :D Thanks

What mr roberto said, but if you get lazy you can just split the signal as the sub signal should be mono anyway.