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?