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Which are the current Singlepower models? - Page 2

post #16 of 167
11/17/05 at 2:41pm
Quote:
Originally Posted by Voltron
Thanks for this thread Glod, and for all the info being contributed. I keep thinking that we should ask Mikhail to update his website to get a little bit more up to date.

What about the balanced MPX3 I have heard rumored a couple of times. Don't know if it is real at all or what it would look like--chassis, tube complement, etc.--but I have been meaning to ask about it. Anybody know anything?
Indeed. Supposedly there is a PPX3 SLAM balanced in development as well.
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post #17 of 167
11/17/05 at 3:05pm
Quote:
Originally Posted by PFKMan23
Supposedly there is a PPX3 SLAM balanced in development as well.
mmmmm... that sounds very nice
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post #18 of 167
11/17/05 at 3:23pm
Thread Starter 
OK, I understand you now. A valuable contribution Hirsch.

The Maestro designation is a bit unclear to me as well. I can see that the base model name has its niche, with its own topology and all, but the use of the name sometime in the names of the top models is a bit confusing, since they are SDS topologies. Is it a reasonable conclusion that Maestro simply stands for elaborate pre-amp functions and the chassis it self? Hmm - not really a satisfactory situation: Confusion assured.
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post #19 of 167
11/17/05 at 3:29pm
Thread Starter 
Quote:
Originally Posted by Voltron
Thanks for this thread Glod, and for all the info being contributed. I keep thinking that we should ask Mikhail to update his website to get a little bit more up to date.

What about the balanced MPX3 I have heard rumored a couple of times. Don't know if it is real at all or what it would look like--chassis, tube complement, etc.--but I have been meaning to ask about it. Anybody know anything?
Thanks.

"MPX3-XLR". Well, people have been talking about something like that. Perhaps in connection with the Supra-XLR. I have not heard or seen any concrete examples though. But I guess; why not?
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post #20 of 167
11/17/05 at 4:02pm
Quote:
Originally Posted by philodox
mmmmm... that sounds very nice
I hope to find out soon
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post #21 of 167
11/17/05 at 4:07pm
The MPX3 XLR and the Supra XLR are right up my alley
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post #22 of 167
11/17/05 at 4:33pm
Which of the SinglePower amps is for electrostatic headphones such as the HE90? Is anyone using a final production unit? What's the experience with it so far?
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post #23 of 167
11/17/05 at 4:49pm
Whatever happened to that warm-sounding solid state headphone amp Mikhail was working on? I would have thought it would have been released by now.
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post #24 of 167
11/17/05 at 5:32pm
Quote:
Originally Posted by HiGHFLYiN9
Whatever happened to that warm-sounding solid state headphone amp Mikhail was working on? I would have thought it would have been released by now.
Still being developed.
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post #25 of 167
11/17/05 at 7:42pm
Quote:
Originally Posted by mikeg
Which of the SinglePower amps is for electrostatic headphones such as the HE90? Is anyone using a final production unit? What's the experience with it so far?
bozebuttons posts very positive about his amp.
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post #26 of 167
11/17/05 at 8:08pm
Quote:
Originally Posted by Glod
The Maestro designation is a bit unclear to me as well. I can see that the base model name has its niche, with its own topology and all, but the use of the name sometime in the names of the top models is a bit confusing, since they are SDS topologies. Is it a reasonable conclusion that Maestro simply stands for elaborate pre-amp functions and the chassis it self? Hmm - not really a satisfactory situation: Confusion assured.
your use of the Maestro term is quite confusing. the only reference to the Maestro used when describing the SDS was for the Maestro-style chassis, and never for the amp or because of the preamp outs. so you are incorrect there.

any of the SinglePower amps can be made with preamp functions so that isn't a defining characteristic. the multiple input and output design of the Maestro seems to usually be a defining feature, but that isn't always the case with a few MPX3's having dual inputs and a preamp out, and Hirsch's SDS-XLR has selectable inputs too.

anyways, it pretty much comes down to circuit design differences (like Hirsch already stated). the case difference probably is due to Mikhail trying out new designs (and maybe since the amp is more of a preamp he wanted to differentiate it from the other amps which are more headphone amps?) and since it was used on the Maestro first, it got associated with it and for simplicity we refer to it as a Maestro-style case. nothing more than that.
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post #27 of 167
11/17/05 at 8:40pm
Thread Starter 
Quote:
Originally Posted by ayt999
your use of the Maestro term is quite confusing. the only reference to the Maestro used when describing the SDS was for the Maestro-style chassis, and never for the amp or because of the preamp outs. so you are incorrect there.

any of the SinglePower amps can be made with preamp functions so that isn't a defining characteristic. the multiple input and output design of the Maestro seems to usually be a defining feature, but that isn't always the case with a few MPX3's having dual inputs and a preamp out, and Hirsch's SDS-XLR has selectable inputs too.

anyways, it pretty much comes down to circuit design differences (like Hirsch already stated). the case difference probably is due to Mikhail trying out new designs (and maybe since the amp is more of a preamp he wanted to differentiate it from the other amps which are more headphone amps?) and since it was used on the Maestro first, it got associated with it and for simplicity we refer to it as a Maestro-style case. nothing more than that.
OK, thanks. It is lot clearer to me now. I think it is a better idea then to omit the model "Maestro/SDS-XLR" in the list.

Why are larger Maestro chassis sometimes used? What do you think? Is it because of that e.g. switch able Solen Caps configurations take such a lot of volume or other kinds of modifications? If that is the case, I think large chassis SDS-XLR´s are distinct models because of the sheer size of them. Technically: well, if you have switches for e.g. different headphones´ voicing for and Solen Caps configs, that is pretty major differences too to models without, I would think. Thus they warrant a specific model designation.

Hmm - then we have to throw in the Supra-X and the Maestro Aurum too, as models I suppose. OK, for now then

EDIT: Changes made to the list in post #1
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post #28 of 167
11/17/05 at 9:14pm
Quote:
Originally Posted by Glod

Hmm - then we have to throw in the Supra-X and the Maestro Aurum too, as models I suppose. OK, for now then
The Supra-X was a one off. I was kidding around. I am sure he could build another one though.

Guess what .... there is another new tube type running in my Supra right now. This tube has an octal base and the same pin out as a 6sn7. The tube parameters are different and really require a different bias etc... for optimum performance. However, so far this tube sounds very good even in this handicapped state.

This tube is sort of a "super 6sn7". The plate dissipation is 10 watts per triode section vs about 3 watts per section for a 6sn7gt. The amp sounds faster and the soundstage is both HUGE and extremely natural sounding. The bass is good, but not especially powerful or full sounding, and here is where the tube being optimized for the circuit would probably improve the performance considerably. This tube has a large heater current draw so you need atleast a Supra level transformer. I will let you know what I think of this tube after a couple weeks of testing.

I may send one of my amps in and have Mikhail optimize the circuit and see how much performance this tube can give. I was reluctant to do so until I had an idea if the tube could improve on the 6/12sn7 and 7/14n7's. After listening to the amp the last couple hours I am pretty sure this tube can. High power doesnt always equate to better sound but this tube seems to have both.
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post #29 of 167
11/17/05 at 9:42pm
Thread Starter 
I did some additional search and, even if the Supra-X was a one-off, I think we have to consider it a discrete model because of the few quite different components in comparison to the stock.

That new tube you are experimenting with, let me guess: 6BX7? 1,5A filament current draw... I am very curious about the eventual sonic results! Could be my type of tube
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post #30 of 167
11/17/05 at 9:47pm
Quote:
Originally Posted by Glod
I did some additional search and, even if the Supra-X was a one-off, I think we have to consider it a discrete model because of the few quite different components in comparison to the stock.

That new tube you are experimenting with, let me guess: 6BX7? 1,5A filament current draw... I am very curious about the eventual sonic results! Could be my type of tube

Well ok ..... I like the X being a model ..... especially since I have the only one.



Nope .... but you were close!
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