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A variable stereo blend circuit?
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cvanc:
Hi all-
I have an interesting problem with recent changes to my home system. Some recordings actually seem too stereo. I think a variable stereo separation control would be very useful.
I would like a continuously variable knob that goes between full stereo & full mono. This control was common on old preamps, FWIW. A good example is the Apt Holman which is highly regarded; photo attached.
I'd like to build one passively if possible. It'll probably be lossy but my preamp has a ton of output and can afford to spare some dBs.
So... how do I make a passive variable separation control?
jiarui:
Just buy a small mixer. You only need two channels. Plug the left and right into the two channels. You can then just use the pan control to do what you need.
Zero999:
This is the simplest I could come up with. R2 will need to have an exponential curve, as it will have little effect towards the high end of its setting. A taper potentiometer could be used, but it'll have to be wired backwards.
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