Re-tubing Jadis DA7


Has anyone re-tube one of these amps? I used 6550 for output but having problems finding the best 12AU7 and the 12AX7 tubes for the input stage. I have tried a few EH but find the sound quality inferior to the originals. It seems the new batches of EH tubes are not as good as the older batches. Could anyone tell me where I could buy stock tubes that are in top conditions?
Thank you
luna

Showing 2 responses by luna

Thanks Wendell, I have a look at the RAM's site and found there are different grades for thier tubes. Could you tell me which grade did you used?
Could anyone tell me whats "High gains" and "Matched Balanced" means when they have those choices?
Thanks