Can I convert stereo to mono for a phono input
My preamp doesn't have a switch to convert stereo to mono. I would like to switch a stereo signal to mono to set my cartridge azimuth (when using two channels out of phase, this method allows accurate balancing of the channels). Is there a way to build a simple converter: two RCA female plugs taking a stereo signal and mixing it to mono, output as two RCA male plugs (mono signal)?
I have a test LP that provides a stereo track (test signal) with the two sides out of phase. All I would need to do is feed that through the mono converter to set my azimuth.
Thanks for any advice. Peter
Thanks guys. I get your point here. I think it's worth getting the azimuth right for its own sake. If it solves the problem, great. If not - hmmm - what ARE the other options? This is definitely happening within the cartridge, as I can swap L&R inputs into my phono pre and it follows the swap. Best, Peter |
... azimuth adjustment should not be done in hopes of equalizing channel output. (I actually wondered whether that was your goal, but I figured Almarg would have warned you off it before me, if that was the case).Thanks Lew, but you give me too much credit :-) (Especially when it comes to non-electrical things like cartridge and tonearm adjustments). Best regards, -- Al |
peter_s If not - hmmm - what ARE the other optionsFirst, I'd make certain the imbalance is in the phono cartridge and not in the phono stage itself. No cartridge is perfect, but a good cartridge really shouldn't have an audible channel imbalance, imo. If it were a new cartridge, I'd return it to the dealer. The only other solution is to just replace the cartridge or use the preamp's balance control. |
