I need your help about the hum !
I recorded directly (no microphone) the solid state out, the tube out and the headphone out. I talk here only about the solid state out since the others have the same hum.
I analysed the record with audacity and here is my finding :
At low level (ss-out_min.jpg), I have two big 100Hz and 200Hz (-60db) and a small 50Hz (-80db).
At high level (direct button) (ss-out_direct.jpg), there is a big background which makes a kind of white noise.
Where does this 100Hz and 200Hz come from ? How to remove them ? diy mod ?
I need your help to try to see if you all have this hum, putting the volume of the maverick to minimum and putting the volume of your amplifier to the max.
If everyone have it, I will go diy mod but if not I will have to replace it ! This is why i need your help, do i have to return it or not ?
I am ready to modify the resistors for the headphone amp, in order to use my headphone with low impedance, but for the ss out and tube out ? Can I do the same thing ? Perhaps it is related to the hot outputs ? Is lowering the gain of the output stage lowering the noise and hot ?
I think there is something here to explore in order to change the opamp. Someone in this thread reported some problems about opamp rolling (high offset, oscillation), maybe checking the gain of the output stage will allow to do opamp rolling.