I need to know what would be a better amp to run a set of Focal components.. I can either get a 250.2 which runs 62.5x2 @4 ohms rms or I can get a 200.4 which would run 100x2 @4 ohms rms.. The problem is when you bridge a 4 channel amp , the %thd seems to go up.. With a quality set of components, would I notice the drop in THD by bridging the amp?

 

THD doesn't go up enough to matter. Either one will be substantially below audible amounts, but in almost any situation, the 250 will be more than enough power for components.

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The G250a2 would make them work well. It would supply a lot of power and it would not be distorted. It is better to over power a bit than underpower. Nasty sounds kill speakers really fast. I think either one would make them sound good. Just as a comparison for you, I run my 6" mid/tweet combo off a 4X30w orion and they are very clear and powerful sounding.

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91 Z28 Camaro
305 TPI
700R4 with 2000 Stall and shift kit

 

i would use the most power available, but bridging 4 channels is really not a good way to go. they are both way underrated, so the 250 will probably put out aroung 100 watts per channel, which is about right for focals or any other high quality components. i have focals in my ride and my fiance has them in her cadillac, they are pretty cool.

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88 S10
Dropped 3/4
18" Boyd Coddington Timeless 5s
Dart equipped 406
12.20 @ 115.25 mph