Studio Channel has 50/100hz hum... change tubes?
Posted: Tue Jul 29, 2014 12:23 pm
One of my PreSonus Studio Channel Preamps has developed a low volume hum at 50hz & 100hz (after its on for a few hours). so I figure its time to change the tubes. Was thinking of upgrading to these.. any feedback would be appreciated...
http://www.telefunken-elektroakustik.co ... c83-tk.php
http://www.telefunken-elektroakustik.co ... c83-tk.php