Hi, I bought a MK47 a little while back already built and it has a white noise type hiss in the background. I've tried a couple of sets of tubes but it doesn't alter the level of the background noise.
It's not loud enough to be a problem with recording in a track full of other parts but if you were to record a solo vocal/ spoken voice you would notice the background noise. It's definitely noisier than my other mics, (neumans akg etc) but they are all solid state. A tech who does some work for me suggested it could be the carbon resistor (I think it was 100K?) but that changing it would alter the tone. Tonally it sounds great, but I've read other build posts saying theirs were quiet.
Anyone whose built one got any pointers as to what might be the cause, or comments on the self noise level of their builds? This one has a Thiersch blue M7 capsule. Is it maybe worth trying more tubes?
Thanks.
It's not loud enough to be a problem with recording in a track full of other parts but if you were to record a solo vocal/ spoken voice you would notice the background noise. It's definitely noisier than my other mics, (neumans akg etc) but they are all solid state. A tech who does some work for me suggested it could be the carbon resistor (I think it was 100K?) but that changing it would alter the tone. Tonally it sounds great, but I've read other build posts saying theirs were quiet.
Anyone whose built one got any pointers as to what might be the cause, or comments on the self noise level of their builds? This one has a Thiersch blue M7 capsule. Is it maybe worth trying more tubes?
Thanks.