Don’t experience any buzzing or hum on my WA5LE either switched on or off.....sounds like it could be an ‘earth loop’ in your system. When you switch off does the hum disappear when you disconnect the xlr/rca inputs as opposed to the mains lead? Have you tried plugging your WA5 into another...

I am fairly certain if you had an amplifier which ran speakers, you would not switch on, without a resistive load being present I.e. speakers, at the outputs. You would not connect the speakers after the switch on event.... same applies with headphones. And Woo explain as much in the manual from...

It doesn't sound like you're doing anything wrong.... I assume during normal switch on you have the headphones connected and the volume control turned right down. When I switch my WA5 on, all I can hear through the headphones, is the chiming of the tubes as the circuits warm up. Once the blue...

I am new here too, but lurked around here for ages. I brought a WA5LE v2 in 2015 and ran the stock tubes for approximately 3 or 4 months, until the dreaded ‘tubitis’ kicked in. To be honest from memory the WA5 with stock tubes was just a wow! moment for me. In hindsight, I had no desire to...

Hi..This is my first post on the site, although I have been an avid lurker on these pages for years... Here is a pic of my WA5le setup - all Sophia tubes, SERP 300B, 6SN7, & 274b Mesh driving HEK v2 - Front end is Roon server and a Linn Klimax DS/3. Newest tube addition being the 6sn7’s...