If voicing 3 is supposed to be with no/zero NFB why does the presence control still work ?
The presence control in a valve power stage relies on there being NFB to be able to work. In other words when voicing 3 is selected the presence control should do nothing, it should be effectively as if the control was on maximum (open loop)
DT25 presence control
in DT50 / DT25
Posted
If voicing 3 is supposed to be with no/zero NFB why does the presence control still work ?
The presence control in a valve power stage relies on there being NFB to be able to work. In other words when voicing 3 is selected the presence control should do nothing, it should be effectively as if the control was on maximum (open loop)