Thank you Albert. Callisto on the wish list.
Moving into a new house/dedicated room soon. Chris Huston is doing the design.
Moving into a new house/dedicated room soon. Chris Huston is doing the design.
Calling all Aesthetix Callisto / Io Owners
I have owned an Io (standard version with 1 power supply) for a little over a year. I replaced all the tubes in the audio chassis with Telefunken tubes and this was a huge improvement. And this week I took delivery of a Callisto (signature with 1 power supply).
1: Since I also have another line stage here (BAT 31SE) I would like to try both of the Aesthetix power supplies for the Io to see if I ultimately want to go with two supplies here. I would also like to try both power supplies in the Callisto to hear what is gained over just one P.S. But I see that the power cables between the PowerSupply chassis and the Io have different pinouts than the cables used to the Callisto. Are the power supplies interchangeable or are they pinned specifically for either the Io or Callisto?
2: Are there tubes within the Callisto that significantly benefit from tube rolling?
3: Has anyone done a shootout between the Standard and Signature Io? .... and what were the differences?
4: On the Callisto, when I move the "Right Level" control, there is a slight crackle/static sound from full attenuation to the first step and then again in the next 2-3 steps. From then on the noise is gone. I have swapped tubes between the L & R channels, swapped power cables between L & R, tried using a different set of inputs, swapping outputs to opposite amp inputs, etc. The problem stays with the right side. Does the right level control need to be "cleaned"?
Thank you in advance for any input here.
John
1: Since I also have another line stage here (BAT 31SE) I would like to try both of the Aesthetix power supplies for the Io to see if I ultimately want to go with two supplies here. I would also like to try both power supplies in the Callisto to hear what is gained over just one P.S. But I see that the power cables between the PowerSupply chassis and the Io have different pinouts than the cables used to the Callisto. Are the power supplies interchangeable or are they pinned specifically for either the Io or Callisto?
2: Are there tubes within the Callisto that significantly benefit from tube rolling?
3: Has anyone done a shootout between the Standard and Signature Io? .... and what were the differences?
4: On the Callisto, when I move the "Right Level" control, there is a slight crackle/static sound from full attenuation to the first step and then again in the next 2-3 steps. From then on the noise is gone. I have swapped tubes between the L & R channels, swapped power cables between L & R, tried using a different set of inputs, swapping outputs to opposite amp inputs, etc. The problem stays with the right side. Does the right level control need to be "cleaned"?
Thank you in advance for any input here.
John
- ...
- 31 posts total
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. |
- 31 posts total