Doing a scan of what's new on reviews I came across this Jolida’s Foz XT-R Crosstalk Reduction Device | Analog Planet Product page here Foz XT-R | Jolida . Initially thought it was just a balance control then read a little deeper and not entirely sure how it works. From the marketing fluff looks like it adds a phase shift to make the cross-talk out of phase and cancel it, but I if that is the case, why have different left and right knobs? I'm missing something here and suspect a big 'D'oh' moment at some point 🙂
At a guess -
Feed the RH channel phono output into an inverting stage, adjust level & send it to LH channel amp input to cancel that half of the crosstalk.
Feed the LH channel phono output into an inverting stage, adjust level & send it to RH channel amp input to cancel the other half of the crosstalk.
You could breadboard a 2 channel op-amp inverting buffer with level adjustment to try it out.
Feed the RH channel phono output into an inverting stage, adjust level & send it to LH channel amp input to cancel that half of the crosstalk.
Feed the LH channel phono output into an inverting stage, adjust level & send it to RH channel amp input to cancel the other half of the crosstalk.
You could breadboard a 2 channel op-amp inverting buffer with level adjustment to try it out.
To be clear - you still send LH phono signal to LH amp input & RH phono signal to RH amp input as well. Otherwise you'd have silence.
Yeah had the d'oh moment this morning on my cycle to work but was too busy. Pair of diff amps, pair of attenuators and job's a goodun. I'd been over thinking it (yet again).
I'll build something up at some point to test. I suspect that, for some, the effect would not be pleasing as the cross-talk gives some artificial stereo widening effects.
I'll build something up at some point to test. I suspect that, for some, the effect would not be pleasing as the cross-talk gives some artificial stereo widening effects.
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