bridging amps
#1
bridging amps
I had a talk with a couple of shop workers today and I just wanted to double check on a few things they said because I didnt really understand after I left. If I bought a 4 channel amp, the guy said I could run 2 channels at 4 ohms and the other 2 at 2 ohms. Is that possible? Also I had a question on bridging. The guy said that when you bridge two channels, it doubles the power. Does that mean it doubles the power of one channel or the two combined?
#2
the guy said I could run 2 channels at 4 ohms and the other 2 at 2 ohms. Is that possible?
when you bridge two channels, it doubles the power. Does that mean it doubles the power of one channel or the two combined?
#3
I was planning on getting an image dynamics sub 12" that runs at 350 RMS and buying a 4 channel amp to run the sub and set of components. The amps I were looking at was the
Fusion FP4500X
65x4 @4 ohms
125x4@2 ohms
Autotek SX475
75X4@4 ohms
100x4@2 ohms
My compents run at 4 ohms and the sub comes in 2 or 4 ohms. If I'm planning to bridge two channels at 2 ohms, does that change the ohms to 4?
Another option I was considering was just buying a one channel amp for the sub which is a
US Acoustics USX600d
375x1@2 ohms
and maybe get an amp for the speakers later.
Fusion FP4500X
65x4 @4 ohms
125x4@2 ohms
Autotek SX475
75X4@4 ohms
100x4@2 ohms
My compents run at 4 ohms and the sub comes in 2 or 4 ohms. If I'm planning to bridge two channels at 2 ohms, does that change the ohms to 4?
Another option I was considering was just buying a one channel amp for the sub which is a
US Acoustics USX600d
375x1@2 ohms
and maybe get an amp for the speakers later.
#4
are you saying you want to run the amp in a "Trimode" operation? as in, powering your sub and your speakers from 1 amp?
the hook up is
each channel gets a speaker (4ohm load) and the sub gets 2 ch combined into 1 so that is 4ohm // 4ohm = 2ohm, but this is 2ohm stereo which is the equiv to 4ohm mono
________
Zoloft Lawsuit
the hook up is
each channel gets a speaker (4ohm load) and the sub gets 2 ch combined into 1 so that is 4ohm // 4ohm = 2ohm, but this is 2ohm stereo which is the equiv to 4ohm mono
________
Zoloft Lawsuit
Last edited by pr5owner; March-10th-2011 at 10:36 AM.
#5
Originally posted by pr5owner
are you saying you want to run the amp in a "Trimode" operation? as in, powering your sub and your speakers from 1 amp?
the hook up is
each channel gets a speaker (4ohm load) and the sub gets 2 ch combined into 1 so that is 4ohm // 4ohm = 2ohm, but this is 2ohm stereo which is the equiv to 4ohm mono
are you saying you want to run the amp in a "Trimode" operation? as in, powering your sub and your speakers from 1 amp?
the hook up is
each channel gets a speaker (4ohm load) and the sub gets 2 ch combined into 1 so that is 4ohm // 4ohm = 2ohm, but this is 2ohm stereo which is the equiv to 4ohm mono
Actually if you only power the front component sets, you don't need to use trimode with a 4 ch amp. Just use 2 channels to drive your component set, then bridge the remaining 2 ch to drive your sub. If you do it this, just make sure that the "ohms" work out correctly.
Last edited by douggie; September-11th-2002 at 06:14 PM.
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