I also have the hum sound problem.
I use a 60 ohm impedance headphone and it is quite annoying to listen to music with the hum. But i understand i can modify some resistors to be able to listen to it.
There is still a problem.
I tried the tube out on an integrated amplifier. I put the volume knob of the maverick to the first, second or third tick and slowly max up the volume of the amplifier. When the volume of the amplifier is near MAX, i can hear the same puzzling hum. When I up the volume of the maverick, the hum begins to disappear near 12 o'clock and then near 15 o'clock i hear a fsss sound. The fss sound is not bothering me, it is normal i think, i never have to use the max of the amplifier !
Only the hum is very annoying. If I put the maverick at 15 o'clock (or direct which is the same), i don't have the hum and I can have the volume I want with the integrated amplifier.
BUT, if i want to use the maverick as preamp directly plugged to a power amplifier or amplified monitors, I will hear this hum since i will use low volume (and not 15 o'clock) !
I generated a 50hz sound with a free software and it is really the same hum !
Since that, I have to try to filter the alim etc. I can record the hum to try to analyse it and find a treatment.
If anybody here who don't hear the hum normally can try to put mav volume to very low and the integrated amp to very high and can tell us if he hear it ?
I use a 60 ohm impedance headphone and it is quite annoying to listen to music with the hum. But i understand i can modify some resistors to be able to listen to it.
There is still a problem.
I tried the tube out on an integrated amplifier. I put the volume knob of the maverick to the first, second or third tick and slowly max up the volume of the amplifier. When the volume of the amplifier is near MAX, i can hear the same puzzling hum. When I up the volume of the maverick, the hum begins to disappear near 12 o'clock and then near 15 o'clock i hear a fsss sound. The fss sound is not bothering me, it is normal i think, i never have to use the max of the amplifier !
Only the hum is very annoying. If I put the maverick at 15 o'clock (or direct which is the same), i don't have the hum and I can have the volume I want with the integrated amplifier.
BUT, if i want to use the maverick as preamp directly plugged to a power amplifier or amplified monitors, I will hear this hum since i will use low volume (and not 15 o'clock) !
I generated a 50hz sound with a free software and it is really the same hum !
Since that, I have to try to filter the alim etc. I can record the hum to try to analyse it and find a treatment.
If anybody here who don't hear the hum normally can try to put mav volume to very low and the integrated amp to very high and can tell us if he hear it ?



















