Phase Inversion on CJ equipment


The manual for my CJ pre-amp has warnings periodically saying that the pre-amp is not phase-inverting. This means that I have to send the red output on my amp to the black input on the speaker in order to get the driver to go the right way. They say that they do this for purity reasons, to avoid any added distortion. Why don't other manufacturers do this if its so great? Also, does anyone know what this is doing to my amplifier now that I've mix-matched the hot lead?
argent

Showing 2 responses by sugarbrie

Hang on; some CJ preamps do not require you to invert the phase to have your system be "phase correct". On my CJ (solid state) preamp, only the moving coil phono stage is inverted, which can be corrected by reversing the wires on the tonearm going to the cartridge. There appears to be some confusion here. ARGENT: WHICH CJ PREAMP DO YOU HAVE??? You may want to contact CJ to clarify if you are not sure. They usually respond to eMails within 24 hours.


For the rest of your question: In a lot of cases with high end audio, "Less is More", so if a stage of the preamp is used only to make the unit phase correct, removing it removes a possible source of distortion. On my Stan Warren modified DVD player, Stan removed part of the output stage and replaced it I think with a couple Blackgate caps as a buffer. It means I now have to turn the volume up a little more, because the output is a little lower, but it is also a lot cleaner than before per Stan.

On Phase inverted Compact Disks, I've read that reversing the speaker wires won't help you. Something else in the signal path needs to be changed. The Rotel RCD-990 CD player has a phase inverting switch on the remote. I've also read that phase inverted CDs sometimes happens by accident.