poweramp questions

[rygelxvi]

k I have 2 lines coming from my crossover, one for the
highs and one for the lows. Do I just run these to channels
1 and 2 of my power amp as if they were left and right
strereo? then just run the respective cabs off the each
channel, ie run my lows to channel 2 then plug my 15" cab
to channel 2 output. And If I'm using 2 8ohm cabs will the amp be pushing at 4 or 8 ohms in stereo mode? Also what brand makes the best
poweramps for bass?

 

[Scotius2001]

Originally posted by rygelxvi
k I have 2 lines coming from my crossover, one for the
highs and one for the lows. Do I just run these to channels
1 and 2 of my power amp as if they were left and right
strereo? then just run the respective cabs off the each
channel, ie run my lows to channel 2 then plug my 15" cab
to channel 2 output.

That is exactly correct assuming your amp is operating in stereo mode (as opposed to bridge mode). One channel for each crossover output. An 8 ohm cab will will draw the 8 ohm rated wattage for that particluar channel. As for best power amps for bass, you can't go wrong with QSC but there are many other good ones as well.

 

[ModulusFan]

AKA: Biamping

 

[notanaggie]

Yeah, what they said.

One thing, though.....if one channel has enough power for your lows, then a lot of the other channel's power goes unused. You could get louder or cleaner by using that power on lows, but you don't get the chance.

I have usually found that going bridge mono full range, if you can, often overcomes with power the problems that biamping is intended to fix.

But if the speaker doesn't have a crossover, you are stuck biamping.