hi,
i'm "designing" a preamp to select one of four stereo input and send it A: to two cmoy amps (chip, i know), then blend the stereo signal to mono and cut it off to below 80hz and send that to a subwoofer amp (the esp p27 power amplifier). B: to a selector that will send the stereo signal to either a headphone amp (still working on it) or a stereo power amplifier. the goal is to allow the subwoofer and main amplifiers to be on at the same time
schematic one
schematic two
schematic one is the ps/amp, and schematic two is the channel selector. it helps to open both at once
the cicuit looks sorta ok to me, but i'm sure somethings wrong with the resistor values/layout/etc. any help is much appreciated. thanks!
i'm "designing" a preamp to select one of four stereo input and send it A: to two cmoy amps (chip, i know), then blend the stereo signal to mono and cut it off to below 80hz and send that to a subwoofer amp (the esp p27 power amplifier). B: to a selector that will send the stereo signal to either a headphone amp (still working on it) or a stereo power amplifier. the goal is to allow the subwoofer and main amplifiers to be on at the same time
schematic one
schematic two
schematic one is the ps/amp, and schematic two is the channel selector. it helps to open both at once
the cicuit looks sorta ok to me, but i'm sure somethings wrong with the resistor values/layout/etc. any help is much appreciated. thanks!
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