On another inspection of the kit web site, I see the 2.1 kit can be had in 12AU7 drivers instead of the 6922 - this may be of interest. I use 12AU7 Mullard “long plate square getter” in my MP3 preamp and love them, plus I believe 12AU7 are more competitively priced than comparable 6922 tubes - anyway, my 2 cent
My DAC board uses 5687 drive tubes (kit 2.1 c / 3.1 +) and I use 7119 Amperex lovingly.
My DAC board uses 5687 drive tubes (kit 2.1 c / 3.1 +) and I use 7119 Amperex lovingly.