Pro Audio Asylum

Rane AC-23S

70.67.201.149

In Reply to: RE: Problems getting a good 3-way x-over for home posted by Pro Sound Guy on November 02, 2009 at 12:45:48

There's a heck of a lot of op-amps in the signal path, if you care about such things. A lot of them appear to be TL072; those have been around over 30 years now, and are probably perfectly adequate, but they weren't SOTA for audio even back then.

Still, it uses ganged pots for frequency determining, not VCAs in a state-variable filter. Presumably the pots are laser-trimmed to track very well.

AC-23S Schematic (Open in New Window)

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