Possum
500+ Head-Fier
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- Jun 22, 2001
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Do note that the 42 amp (as with the META42 board) and the 47 amp (as with the CHA47 configuration) were designed for different purposes, so saying one is definitely better than the other is kind of a blind statement unless you specify where/why.
The designer of the circuits of both amps, Apheared, himself said the 47 is for his Grados, and the 42 is for his HD600's, but was too aggresive for his Grados.
Note though, that the META42 board can accept changes to components (op amps and maybe buffers) to change this aggresiveness, since the board implements common op amp/buffer configuration(s), but then the circuit wouldn't be a 42 anymore.
The designer of the circuits of both amps, Apheared, himself said the 47 is for his Grados, and the 42 is for his HD600's, but was too aggresive for his Grados.
Note though, that the META42 board can accept changes to components (op amps and maybe buffers) to change this aggresiveness, since the board implements common op amp/buffer configuration(s), but then the circuit wouldn't be a 42 anymore.