Buzzing through speaker's tweeters - PrimaLuna Dialogue Two Integrated


Hi Everyone,
I have a PrimaLuna Dialogue Two integrated amp that had all its tubes replaced in Jan. 2019.  Last night I noticed buzzing through my speaker's tweeters when using the Aux 1 input (from Audible Illusions phonostage).  I had not started playing any records and the buzzing increased when I moved up the volume knob.  It would decrease when lowering the volume.  I swapped to the CD input and turned on the SACD player, dead silent.  I swapped my AI phono to a solid state phonostage, but nothing changed.  Still got the buzzing at about the same intensity.  I even moved the RCAs to Aux 2 and still the buzzing.

I emailed PrimaLuna but hope that maybe someone on the forum may know what is causing this and how to fix?
Thanks!
128x128kaloman

Showing 1 response by stereo5

Sounds like your problem is the AI preamp, not the Prima Luna.  Check to see if the tubes are seated right in the AI preamp.  The phono tubes in the AI are the two on the left.