Thread: On a 2 channel amp that I plan on bridging, do I need BOTH rca ins?

Originally Posted by FyreDaug

I have 2 of the same amp that I want to use for the fronts. I also have 2 sets of components going up front.

The amp is 80w x2 @ 4ohm
110w x2 @ 2ohm
or 220w x1 @ 2ohm. Both sets of components are good for over 120watts, so this is what im planning on doing

Amp #1 will control the left speakers, I will feed it a left channel input and then bridge both left speakers to give me a 2ohm load, and then itll give it 110w each. Rather than wire all 4 speakers off 1 amp I would only get 55w each (where only using 2 would be 80w) so I dont want that.

Basically my question is: if I have a left and right rca, can I put the left one into one amp and not need another connection? Meaning left rca will go to 1 amp and the right rca will go to the other amp. Can I just leave the other rca open or does it need it to be able to "merge" the left and right to give it a bridged output? Its a 2 channel amp is the only reason im asking, I know its fine on a mono amp with 2rca inputs and only using 1.

Yikes.....

I would not bridge those amps with your mids/highs. To much distortion, especially at 2ohm mono.... IF it doesn't kill your amps.

If you must use 2 sets of components give each one it's own unbridged 4 ohm channel.

I'd keep one set as midrange/high, and try to enclose another has mid bass. Ditch the second tweeter. MBQs are notoriously bright.

And yes, you need to have both RCA inputs connected.

Originally Posted by FyreDaug

I actually dont think so, why would you? Maybe it makes sence on a 2 channel amp but for a mono amp you really only need 1 input right?

if you already made up your mind, why did you ask? if you already planned on just using one RCA, why did you even bother us with it?

other people think you need both, and still you're gonne use just one, so what does it matter what they think? right, it doesn't mean jack...