Have a look at the coupling possibilities between channels and then you'll know. Assuming good grounding usually the limiting factor is supply ripple---at typical listening levels ripple is usually dominated by the amp's quiescent draw and the control loop's PSRR isn't always high enough to deliver a good SnR on the output due to the relatively low ratio of output to idle power. If that's the case for your amp then the corner of interest is likely to be with five of the channels as aggressors and one tweeter as the victim. Output power depends on driver efficiencies, crossover points, and listening configuration but for a typical triamp 1mW per mid and low and 100uW per tweeter is a reasonable starting point.
Given good parts choices and layout an op amp based control loop running off regulators usually has sufficient PSRR margin a common supply's fine. Differential topologies make this easiesr. If you're doing discrete control and unbalanced, well, that's harder.
Given good parts choices and layout an op amp based control loop running off regulators usually has sufficient PSRR margin a common supply's fine. Differential topologies make this easiesr. If you're doing discrete control and unbalanced, well, that's harder.
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6 amp circuit 200w into 8 ohms..... in a tri amp design(2 highs /2 mids /2 lows)
Is this a PA or home system?
What is the load on the amps o/p's?....a single 8R driver?
Power distribution will depend on the xover frequencies.
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