Calling all Aesthetix Callisto / Io Owners
Hemisferik, here is the link to suggestions posted here at Audiogon. Aesthetix tubes No matter where you live the internet allows you to search world wide for tubes. The EL34 are easy, perhaps Mullard can be found locally. I've bought Telefunken tubes from a vendor in Australia, perhaps I can find his email address for you. The best source for the ultra low noise tubes for the Io phono first stage is Andy Bauwman at Vintage tube here in the USA. You may email me through the Audiogon server and I will send you links to all my suppliers. |
Wow, cool to see this thread still has a heartbeat. I started this thread for some assistance to get the Callisto "up and running". After reading much of Albert's tube advice, I started this thread to share my own tube experiences for the Callisto. So much had been discussed on the Io but not so much on the Callisto. Another thread to check out is here. Last year I put a lot of time into investigating and trying out EL34 and 12ax7 tubes. This year I finally got around to trying many 6DJ8/6922 variations. The Tele 6DJ8 tube BY FAR is the most impressive of them all and it equally performs magic in the Io and Callisto whereas the Tele 12ax7 is wonderful in the Io but absolutely flat in the Callisto. For the Callisto I can't make up my mind if I prefer the Brimar or the Mullard gold pin 12ax7. My Callisto is the Sig version but the Io is/was not. I took the Io over to Steve Huntley (GNSC) and he went through one pass on this, upgraded nearly half of the caps to Dynamicaps (the primary update for a Signature version), tweaked a few other things and added a bunch of dampening to the chassis. When we listened to this in his system a week or so later, frequency extremes opened up dramatically. Tonal coherency was far far better and thankfully that incredible bloom was there as before. Steve said he had some ideas to replace some parts in the PS and some more changes in the audio chassis. I would love to go for this but the sound is just so good right now that I am not ready to part with this for a couple weeks. But I will look to do this at the start of the year and report back. I feel very fortunate to be 15 minutes away from GNSC. |
