Greetings everyone. I wanted to post a nice Shout Out for a Greekria upgrade cable for my AKG Q7XX from Mass Drop. Using Spotify at the highest resolution, an iMac with USB out to an Aune T1 DAC/AMP, with Amperex Bugle Boy tube. I am past 60 and my hearing is not what it use to be. But even...

I just bought a Schiit Valhalla 2 headphone amp. I am interested in recommendations on different input tubes. There is a thread in the Headphone Amp forum titled, "Schiit Valhalla Tube Rolling thread." started by Mr. Tom. 94 pages and no summary. I have read about 10 pages and the thread...