Hiss and noise on the Mics

[vobes]

I have a problem with my Samson CO1 condensor microphones....

I have found they have started producing a lot of background hiss or white noise (like distant rain) - 2 of them.

I wondered if I have blown them up or damaged the diaphram inside.

I have tried them with different leads, and on two different desks and still they produce the same effect.

Now, they were working perfectly fine and I was getting a really clean, loud and crisp signal from them. But they produce this , even if I change the leads, the desk, both with phanotm power.

Its not room noise and although I can filter it out with a gate - you hear it everytime a voice speaks anyway. Yes, I isolated them away from compressors and other processors! My Rode Broadcaster microphone works a treat on both desks, leads, etc.

I do turn off the phantom power before plugging them and unplugging them, but did have a problem with the leads once with a short, which meant they kept cutting in and out. I have repaired the leads (all balanced by the way) and up until last week I had no problems.

I could understand one of them going down, but both - very strange. I am hoping there is an obvious solution, but not so sure.

Any thoughts?

Vobes

 

[Rick Shepherd]

I had a similar experience, and very nice, clean signal chain, but my Peluso CEMC6 pair (both) gave me a very noticable hisssssssssssssssss. I sent those things back in a hurry, but did not replace with the same mic.

 

[XLR]

Are they stored in a dry environment? Before you check other things you might want to make sure the capsules haven't accumulated any moisture condensation.

Tim