I am tring to bridge a sub on two of the four channels on a pioneer gm-x554 amp.
I have the channel A going to the front componets and want to bridge the power on channel B for the sub.

I can't figure out how to wire the sub here's a pic---v



Disregard the wires in there now, I was tring a few configurations.
My biggest problem is how the diagram shows how to bridge A-B together but not how to bridge the L and R on channel B.

I was under the impression that the + Left goes with the - Right, I tried this but it didn't work
I tried looking on Pioneer's web site for the manual but couldn't find any. The specs on the amp says its 4/3/2 channels so I dunno.

Robert

 

Thought I would also mention that right now there are two sets of RCAs one for the sub and one for the componets. No rear speakers are being used with this setup.

Thanks again

 

Doesn't look like it's possible to me...

free bump!

drew

 

It appears that Left+ and Left - are what you need. It seems like the Top row is set A and the bottom is set B...

--Don

 

Don that's what I thought however if you use L + and L - then you are bridging A and B together. Which makes it a 2ch amp, I tried wiring it like that but then where do I put the other speaker? Am I missing something?

Robert

 

Couldn't you do it like this? Use the top row (chanA) for the fronts (L&R) and then on the bottom row, the left negative and the right positive out to your sub? Have you tried this?

Free bump anyway...
drew

 

drew- that's actually how it was setup in the picture, minus channel A's right - speaker. I removed the right - because the right speaker lost all the highs and sounded really weird, when it was powered like that. BTW everything sounds fine in 4 ch mode, except the sub is not that loud.

Robert

 

Ooops.... I didn't even see that...

I suggest trying to call Pioneer and see what they say. Get it straight from the horses mouth.

Good luck...
drew