Alright so i have a Mach 460 system and i'm puttin in an amp for my 12" subs the only prob is that i want to tap it from the rear deck and thats only 2 channels my amp is a 4 channel amp and i need all four channels going. Could i split those 2 channels into 4 channels for my amp?

 

im pretty sure to add an extra amp to the mach 460 you would have to completly start over with the stareo. By that i mean take out all of the stock equipment and put in all new stuff, i could be wrong but i hope someone else can chime in and help

 

I strongly doubt that

 

The amps for my subs

 

it can be done but why use a 4 channel amp for subs? all you need is an amp with line level inputs or buy a piece from the audio store that allows you to use the rear speaker wires to connect to. but seriously a mono amp is all that is needed--sub bass is mono and should not really be played in stereo especially if its a common chamber sub enclosure.

 

Did it ever occur to u that mayb i didn't buy that amp and some one gave it to me and i ain't gonna pay for a mono amp when i got a 4 channel free and its brand new still in the box

 

O i thought u were puttin in a four channel to put more power to the satilite speakers, my bad. And u should get a mono block amp but hey if someone gave it to u u cant complian!

 

hey man its your stuff, i just tried to give you some advice. hope you understand about crossing it over properly and setting the gains to match each other and common airspace in sub enclosures etc if not your gonna have some issues that is all thanx for reading.

 

Did it ever occur to you to maybe be a little more informative in your initial post and maybe then you'll get more worthwhile advice to what you're asking for?

If you're going to use a 2 or 4 channel amp to run subs, find out if it's possible to bridge two of the channels to make make a mono output. In your case, 2 Stereo outputs and one Mono output for the subs.

 

you should be able to switch it to 2 channel, then you can bridge it. plug one rca into the first channel and the other into the 3rd.