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In Reply to: RE: Bi-Amping - Horizontal and Vertical posted by pictureguy on October 03, 2016 at 20:02:45
Too much??
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Forget my tag line. I don't customize it per post.
My point is that the power even split point for 'normal' music is about 350hz. Power needed falls OFf as a percentage of total BELOW and ABOVE that point. I'd say, however, in NO CASE to have less than maybe 20% of power in the bass end, regardless of crossover.
My panels cross at 600hz. And low-cut about 60hz. So, I don't feel TOO BAD having 2x200 per panel. ONE stereo amp per speaker. My Parasound A23 do well. And since I never redline it, I have NO idea which amp would give up first, the HF side or the LF side. The sub is another 250 or so and crosses about 45hz and is in no danger of running out of power.
Gain match of amps is very important with 2 different amps per speaker. I'd be tempted to work out a DLP solution which can make up for such differences.
Too much is never enough
My advice, from TomServo - the professional horn guy just this year, was to use asymmetric slopes at 150Hz. It was nice to have my own decision to do exactly that confirmed.
And I was planning to, for my QUAD 63s with a SWARM of omni/box subs. I did not want to run my subs above that point.
I will be using 3rd for Low Pass, plus 1/3rd octave Eq.This makes it easier for me to get the wring / phasing right.
The just will be complex, given that I will be switching for absolute polarity at spkr level, driving two big, sealed, DIY, clam-shell drivers, sealed subs (half-built) with a stereo power amp each, running OOPhase. A stereo integrated will drive two tall DIY TL subs using gifted KEF B139s.
Warmest
Tim Bailey
Skeptical Measurer & Audio Scrounger
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