multi amps

[GHOST 2.2]

i already have a 2 channel amp wired to subs

now im in the look in getting a 4 channel amp to power my speakers

i know ill need:
4 channel amp (of course)
amp wiring kit
SPDT relay
power distribution block


would i have to even use a second battery, capacitor, or upgrade my alternator to run 2 amps?

[judonoh]

not unless you get a crazy big watt one. You should be fine on the setup you have now. If you want to do something to improve it, do the big 3. You might not need the relay, it's cool if you want to go ahead and add it but don't think its a requirement.

[GHOST 2.2]

the spdt relay for the remote wire to turn on the amps, so your saying i dont need that?

[judonoh]

you can just daisy it off. I had to use one but I am running 4 amps, plus some other items. The remote can signal two items generally, but after that the signal gets too weak. It's one of those things, doesn't hurt to have but not required.

[GunRunner]

my setup is almost identical to this. only differenc eis don't have a Ground Block, I just have 2 separate grounds.

[sonikaccord]

You don't need a relay. Just go to radioshack and get a terminal strip for the remote wire.
x2 on the big3
You don't need a ground block unless you want your install to have an extra "oooo ahhhh" factor.

[Bad_dude]

Well, some CB7 has the power antenna which uses the remote on lead. So if I have 2 amps and the power antenna, do I need this relay?
Thanks,

[Patchouli007]

The question then becomes, does the HU have both REM and power ant outputs. Mine does so I have one just for the ant and the other for my amps. If it only has the one REM it might be a good idea to get the relay. I have ran three amps off a single REM but this was many years ago and I do not know if the specs for this have changed. It is sometimes better to be safe than sorry. Plus if you decide to add more in the future you have that option.

Also if you already have a 4 gauge wire running to your amp you could just put a block in to run the second amp. If you are running smaller guage I would upgrade to 2 or 4 gauge and then DB out to your amps. Don't go cheap on the wire either, get good stuff. A good cap can cost as much as a high output alt on ebay. I just picked up a 160 amp $120 shipped. Many people I talk to just run caps but I upgraded my alt because I am going to run additional stuff. And it can never hurt to have a little extra juice.

[sonikaccord]

Or you can run one rem wire to one amp, then run another wire from that amp to your second amp.

[nachocb7]

I ran three amps off the power antena wire on the deck in my old Corolla. I ran that setup for years with no problem. My new deck in my CB has a separate line out for the power antena and for amps. You should be able to just split the power antena wire to your amps. This wire doesn't have a lot of power(usually 1 or 2 volts) it is only a remote power turn on.

[loud92CB7]

This wire doesn't have a lot of power(usually 1 or 2 volts) it is only a remote power turn on.

correction.... it doesnt have a lot of current going through it. its gotta have 12v to turn on or signal sumthing....

[sleepygreen]

whats a grounding block and wat is the main use of it? sorry if im thread jacking...

[Brandoncb7]

A grounding block/distribution block lets you run more than one amp. It will have one input which the main ground that is grounded to your car goes into and then it will have maybe 4 outputs or however many it comes with. You would put your 4 gauge wire into one side and then on the other side it will have outputs where 8 gauge or whatever can go into. Google distribution block and it should come up with a pic that would help you understand it better than I can explain it. I'm a little slow right now lol.