Well I guess it's back to the drawing board.

Btw, my Effect button is ON when using the VH Al. I have the DSP in Effects on "DSP 6"/MIC/HALL 1. That may well indeed be my problem. I will try it "dry" and let you guys know the results when I'm able.

If after exhausting all other avenues I and/or others still have the problem then it may well be a batch problem and most likely a Hardware problem as stated. It would be interesting to know the approximate 'serial' numbers on the Ty's affected. If they are all in close proximity that would bolster the theory of a batch problem and it should bolster the case with Yamaha I would think.

Also, I have the Shure Beta87A which is a Cardioid Mic but if Yamaha is saying the Shure 58 is ideal I would have no reason to believe my 87A is any less ideal. The SM58 is a dynamic Mic of course but I "DO" supply my 87A with proper Phantom power you realize.

I might try a different Cable going from my Rolls Phantom Power Adapter output to the Ty's Mic input also if turning the Effects button off doesn't correct it.

Best regards,
Mike