K&K Phono Preamp questions.


On the front of this unit there is a polarity + mute and - knob. Is the polarity + and - in regards to the xlr outputs? Also on the back panel, there is a switch near the xlr pin 1 ground label. Is this a ground lift switch? Any and all help and other pointers regarding this unit are more than welcome. Thank you.
128x128wturkey
I can tell you that you have one very fine phono stage. I have owned mine for 20 years and is now the maxxed out version. I have no desire to change to anything else.

Oz


Looks like the one you have is a pretty old version. Don't know how it compares with the new full PCB-based ones.
Gotcha. Thank you for the feedback. This K&K is a difference maker. As soon as the unit was fired up, it was a wow moment. Any tube recommendations from current or past owners? No idea what tubes are in this unit. They sound quite good, to these ears anyway.
@wturkey,

My Trio uses 3 /6922 or variants. I would contact Kevin for accurate info. He actually has a blog on Audio Asylum which might be a better/quicker way to get in touch.
Polarity flipping 180 degrees is made possible by the balanced circuitry inside.  I don't know what if anything at all it would have to do with mute or a mute switch.  Some folks believe selecting the "correct" polarity makes a big audible difference.  Others, not so much.