Thanks to you both. I was hopeing to get a good list of tubes that Jolida owners have used. Successfullly and unsuccessfully. My player, that I've had almost a week, came with Electro-Harmonix Gold. Having no other reference I'm naturally curious about about the audio effects of different tubes. I'm using a PS Audio GCC 100 control Amp and Thiel CS 1.6 speakers. I consider the GCC and the Thiels to be somewhat analytical, very detailed and true to the source. I figured the Jolida would be a good match. I wanted to soften the high end just a bit while maintaining the detail. So far I'm very happy with the combination. My GCC has converted me to the real benefits of burn in time. When I first got it I found it overly bright, but 3 weeks of almost continuous play has turned it into a wonderfully smooth and liquid amp.
Like wise, I've been playing the jolida since I got it and just yesterday it really started to sound great. Regards