Martech MSS-10 noise problem

[Jim Williams]

Is that noise present with a mic connected? Are you listening without a mic connected?

To accurately hear the true noise floor you first need to terminate the inputs with an appropriate load. Solder a 150 ohm metal film resistor from pin's 2 and 3 on a male XLR connector. Now you have a proper load to listen to preamp noise.

[Axelrod]

Originally Posted by Jim Williams

Is that noise present with a mic connected? Are you listening without a mic connected?

To accurately hear the true noise floor you first need to terminate the inputs with an appropriate load. Solder a 150 ohm metal film resistor from pin's 2 and 3 on a male XLR connector. Now you have a proper load to listen to preamp noise.

Good thinking, Jim. Thank you.

The noise occurs with any microphone plugged in. I first noticed it with my C12 and then again with my TLM171.

I find it unusual that there is more noise(hiss) at 30db than at 50db of gain with a mic plugged in. What do you make of that, Jim?

[Jim Williams]

Martech has some 'splainin to do.

[Axelrod]

Originally Posted by Jim Williams

Martech has some 'splainin to do.

That's what I thought too, Jim. Unfortunately, they have done nothing but blow me off.

[Jim Williams]

I'd sell it. It's not like there are no high quality mic preamps to choose from.

Like the Gambler says,

"you got to know when to hold 'um, know when to fold 'um".

[Axelrod]

Bump. Anyone else with a noise issue in their Martech MSS-10 mic pre?