Hi guys,
Technical question...when i turn on my Zanden DAC, there is a super-loud steady buzz that lasts about 60 seconds...and then it stops, and you can hear the signal...perfectly quiet, no hum, no noise.
This 'warm up buzz' is getting longer and longer...rectifier tube in the PSU? The buzz is super loud and gets louder or softer with preamp volume...but its is definitely the DAC because if i switch the preamp source...silent. If i flip the knob on the DAC to another setting...silence for a millisecond in between switching settings before buzz returns.
Rectifier tube going bad? Or might it be a choke filter? Thanks for any advice.
Technical question...when i turn on my Zanden DAC, there is a super-loud steady buzz that lasts about 60 seconds...and then it stops, and you can hear the signal...perfectly quiet, no hum, no noise.
This 'warm up buzz' is getting longer and longer...rectifier tube in the PSU? The buzz is super loud and gets louder or softer with preamp volume...but its is definitely the DAC because if i switch the preamp source...silent. If i flip the knob on the DAC to another setting...silence for a millisecond in between switching settings before buzz returns.
Rectifier tube going bad? Or might it be a choke filter? Thanks for any advice.