Help: Tube roll for Cary 120S


Hi all,
I would want to try tube roll on output tubs (8) of my CAD-120S
My question is do I have to find matching octet or just quad/pair ? If so, how do I match them
Thanks in advance
Thuan
128x128thuan98

Showing 1 response by rodman99999

Here's Upscale Audio's process for tube testing, burning and matching. Kevin even has a 90 day warranty on his tubes. The customer service is hard to beat, and should a tube fail, down the road say a year or two, he can provide a tube that matches the ones you have left. (http://www.upscaleaudio.com/rare/tpm.htm)