Noisy ADX-90

[PYRRHO]

I have an ADX-90 clip-on condenser and the little APS-90 power supply/adapter is making a terrible hum. I'm not sure if this is normal or a problem, but the noise stops when I grip the adapter with my hand. The problem is not a faulty connector or cable...pretty sure; doesn't come and go as I wiggle stuff.
Talked with Gene at Audix and he says it may be a blown fet, so he's sending a replacement. What I forgot to mention is that I'm running the mic through a Yamaha MG16/4 with built-in phantom power. Is it possible that I'm having some compatability issues with the board and the adaptor. Again - leave it alone...hum; grab it...quiet. I'm leaning towards some sort of shielding/electromagnetic issue, but I'm way out of my league here. After all...I'm just a drummer.

[PYRRHO]

Sounds like you might be having problem with grounding PYRRHO. Try the system on a different circuit.

[PYRRHO]

Okay...that makes sense. The wiring in my rehearsal space is kinda lame. Didn't consider that...thanks.

I can work around the problem by pulling out the mids on the board. The hum disappears completely. I'll try a different building tomorrow.

[PYRRHO]

What about the phantom power adapter PYRRHO...did you try a different one?

[TexRoadkill]

Why do you need a power adapter if you are using phantom power? I'm not familliar with those mics but usually you only need an adapter if you don't have phantom power on your board.

[TragikRemix]

well..i bought 3 of them a few months back.

and i sent them both back. they make terrible noise. they are supposed to handle high spls because they are for drums.. but i used mine once and blew the diaphragms? between that and the noisy ass clamps, they found themselves returned.

i can't believe that i used them once and broke 'em just by normal playing.. either that or they were shipped busted, but the chance of 3 of them... shitty mic IMO, 57's havent failed me the past 6 months, and i don't forsee them failing anytime soon.

[TragikRemix]

the power adapter is becuase they are a mini xlr thingy, and they have a larger adapter they plug into. i wouldnt call that a power adapter, its just a mini-xlr to standard xlr. gayness... thats all i can call it..

of course i have an i5 that i love from audix, so what exactly is the deal with that company?