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the next amp should be a... (Read 7370 times)
stevef
Ex Member



Re: the next amp should be a...
Reply #15 - 08/28/11 at 23:02:31
 
Please don't think for a second that I am putting anyone or anything down.  Far from it.  I kid my buddy Curtis, some of you met him at the last Zenfest, that his CJ amp, an EL-34 @ about 40-50 wpc should be used as a boat anchor!  He loves it and that's what counts.

Lon,  I guess about say 15 wpc in a pp mini-Tori would be nice.  Your radials would love them, and tubes would be extremely long lived.  These days a lot of speakers could be driven quite nicely by such an amp.  There are too few amps in that category.  As Far as I know, only Ken Shindo has built a production 6L6 pp audiophile worthy amp. As Steve Deckert is a smart guy, I would love to see a mini-torii move to the next level of power.  Just something for my wish list.  

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opnly_bafld
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Re: the next amp should be a...
Reply #16 - 08/28/11 at 23:12:50
 
Curtis mentioned something about wishing he had a boat*, but I wasn't sure what he was talking about at the time. Wink

Grin

Lin
*a total fabrication on my part
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« Last Edit: 08/28/11 at 23:33:20 by opnly_bafld »  
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Lon
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Re: the next amp should be a...
Reply #17 - 08/28/11 at 23:17:48
 
Not sure my ERRs would really love that amp, they seem to want more power than that in this big living-room/dining room. But maybe. It would also depend on the source and whether you want to add a preamp with lots of gain like the CSP2, which I go back and forth on (don't need it now with my current transport/DAC set up). I'm set now though, not wanting to try another amp, I like to hang on to these rare periods when I'm really happy with my system. For some reason the Mini-Torii has never really appealed to me, perhaps it was because it seemed an open invitation to exuberant tube-rolling, and when that amp came out I had just somehow managed to get myself un-crazy for and from tube-rolling.  :)  Still, I can see that is possibly a gap that could be filled in the line, a 12 to 15 watt amp, but in my experience the Integrated covers a certain type of speaker up to a certain point, and after that the Torii is enough or more than enough. . . Wonder what the price point would be and whether that would be a factor. Anyway, it would be interesting to hear what Steve might think.
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Decware:ERR,HR-1,ZP3,CSP2+(2),Torii Mk III, PS Audio PWT+PWD MkII,PowerBases,PPP,AC-12 pcs, Denon DBP-A100, Denon DCD-A100, Rega RP3 +TTPSU,white belt+Exact2, VooDoo Cable IC: Evo and UL, Mapleshade:Double Heiix Samsonv2+v3 and 4"platforms,Herbie's IsoCups+Tendft
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stevef
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Re: the next amp should be a...
Reply #18 - 08/28/11 at 23:18:50
 
That's why.  He tolerates me.  BTW my much better half Julie plans to attend the Fest this year.  She tolerates me too.  (I plan on bring a Buzz' modified preamp this year for show and tell.)
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stevef
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Re: the next amp should be a...
Reply #19 - 08/28/11 at 23:28:42
 
Lon, your radials are an excellent speaker.  So much depends on the source for signal and how well the signal is buffered. My experience with radials & other omni speakers is that because they don't beam like conventional boxes, spl levels initially appear a bit lower, even though when you measure them from a dozen feet away they match.
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Lon
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Re: the next amp should be a...
Reply #20 - 08/29/11 at 00:02:24
 
Well, I don't measure anything. At the very loudest that I use it, without a preamp, one of my sources (the dvr) isn't putting out enough volts and the Torii seems to be doing all it can. I am routing that to a DAC now though, and don't have a problem.

I still think the Torii would be a better choice than a 15 watt amp for my need, and as I have TWO Toriis (at least for now, might sell one), I'm pretty well set. Smiley
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« Last Edit: 08/29/11 at 00:57:23 by Lon »  

Decware:ERR,HR-1,ZP3,CSP2+(2),Torii Mk III, PS Audio PWT+PWD MkII,PowerBases,PPP,AC-12 pcs, Denon DBP-A100, Denon DCD-A100, Rega RP3 +TTPSU,white belt+Exact2, VooDoo Cable IC: Evo and UL, Mapleshade:Double Heiix Samsonv2+v3 and 4"platforms,Herbie's IsoCups+Tendft
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stevef
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Re: the next amp should be a...
Reply #21 - 09/09/11 at 18:20:33
 
FWIW I did find a similar amp to the mini-torii in a push pull class A version.  They only got about 9 WPC.  The amp lacks the regulation level that the Decware amp employs.  Tight regulation is critical to the mini-torii's sound.  So that other amp is a no go. Perhaps a Citation style a/ab amp with full regulation would be the ticket.  I suppose if I want it I will have to build it. Building a 100 DB speaker to get the spl I want would be easier.  I've already drawn plans for that. Decisions decisions.

Steve
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Rivieraranch
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Re: the next amp should be a...
Reply #22 - 09/09/11 at 21:51:16
 
So you could say that the push is on for a push/pull Midi.
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DECWARE CSP2+, TABOO MK III; SE84CKC; HR1; TRAPEZIUM DESKTOP SPEAKERS; TECHNICS SL1200MK5 turntable; Ah! Njoe Tjoeb CD player; MARANTZ 2226B, 2216B receivers; SENNHEISER HD-580 headphones
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stevef
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Re: the next amp should be a...
Reply #23 - 09/10/11 at 02:19:05
 
Rivieraranch,

LOL.  What a great way of saying that.  C'mon Steve, how about a midi-torri?

Steve
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opnly_bafld
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Re: the next amp should be a...
Reply #24 - 11/24/11 at 22:36:43
 
Any thoughts Mr. D?

Thanks,
Lin
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stevef
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Re: the next amp should be a...
Reply #25 - 11/30/11 at 17:48:39
 
Lin,

I realize that the concept of an AB class push pull amp is really not a normal Decware design theme.  (Though a well regulated one would be really nice.)  So I withdraw my request.  

At the last Zenfest, Steve told me that one of their mini-torii mock ups was a push pull design. He said it sounded pretty good.  

Steve
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stevef
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Re: the next amp should be a...
Reply #26 - 12/06/11 at 03:47:31
 
The best way to run a class AB amp seems to be avoid tubes.  A modern well designed ss amp with good bipolar output transistors and a low bias can sound excellent. As long as the amp has minimal protective circuitry, and isn't driven into clipping, the sound quality is surprising.  

A couple of friends and I, spent a day listening to some jazz records and CD's through an excellent pair of hybrid electrostatic speakers. ( first time I was wowed by 'stats & neither of the two big names)  The best ss units were better than the tubed units on hand. Cautionary note, one ss amp was driven into oscillation by the capacitative load.  The tube amps actually rolled off the highs. In either case, bring lots of cash.  Way above my pay grade, but wow.   Shocked
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walt
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Re: the next amp should be a...
Reply #27 - 01/08/12 at 03:46:42
 
George Wright made an under appreciated push pull 2A3 mono blocks.   I also heard a  Deja Vu audio stereo 2A3 PP that really did well on a pair of Spendors.   I know that this is all stuff done before and suspect they would not stand up to my Torii on my very efficient speakers.
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ski bum
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Re: the next amp should be a...
Reply #28 - 02/12/12 at 20:25:19
 
The next amp...ok, here's an idea.

I'm imagining a powerful amp that has the exact sound signature of a Select.  Not the near approximation, with bass, as with a Torii.   Simpler than that.  More power than that, too.

Think Peter Welker's brilliantly simple, self correcting feed-forward 'current dumping' circuit.  Replace the primary ss class A drive/control stage with Select guts, add an appropriately juicy Decware flavored power source for the current dumpers, and voila, a simple amp with low parts count, genuine class A sonics (in fact, SE84 Select sonics), and the power to drive any speaker.  Seems it could easily and relatively inexpensively be made much, much more powerful than a Torii, yet retain the crystal clear purity of a Select.

That would be wicked cool.

I suppose Quad would take Decware or anyone else to court for trying to do this commercially. Huh
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