Theta Generation VIII defect
Hello I just acquired a DAC/Preamplifier (Theta Generatikn VIII, Series 1) on the used market and I am experiencing a problem, don’ t know if it is a defect of the unit or maybe normal operation..? The problem is this: every time I turn up or down the volume on the unit (remote control or front panelit doesn’ t matter) I can hear a very strong ticking sound, which is dependent on the volume level (higher volume level -> the ticking sound is more audible). I can also hear a buzzing sound every time I press other buttons on the front display. Obviously these sounds are audible mostly during quiet passages of the music, and only if I act on the volume level. The strange thing is that if I press “mute” on the unit these sounds become inaudible ...
I renoved the cover and noticed the unit has been serviced in 2015, there is a label on the PSU with the words “ PSU “ and “infra red” written on it, so I assume they worked onnthe PSU , but I have no way to know what kind of service has been done to the unit. So far, looking at the capacitors in the PSU, they seem to be original.
Do you have an idea on what could cause the ticking sound problem...? Is this a common problem with this model...? Thank you.