As I inserted the 16 tubes in their sockets, I was glad I received this amp to review during the fall and winter -- it will help cut down the heating bills! So for 29 years, Atma-Sphere head Ralph Karsten has been making tubed amplifiers with no output transformers, known as output-transformerless OTL amplifiers. There was no mistaking its tube virtues. The Dual Connect DC-I interconnects were also very flexible, but their high-frequency extension seemed a bit restrained, although their lows were quite strong. The majesty of the cello was fully fleshed out with finely detailed and luxurious textures. The S lights a fire under the soundstage, illuminating it with commendable transparency. In the rear, a pair of copper Cardas binding posts provide a firm grip on the speaker cables.
Apr 18, And output-transformerless (OTL) tube amps are no exception.
Atma-Sphere's Circlotron-based S OTL amplifier reviewed here is by now. "Soundstaging was the best I've ever heard in my home" and "the S Mk III Atma-Sphere owns the patent on the Circlotronic OTL circuit, which it uses not. bad reputation. The Atma.
AtmaSphere S30 MK OTL Power Amplifier HiFi+
Sphere OTL amp is said to avoid this design flaw. Atma-Sphere explains that in each channel of the S Mk. II there are two single .
As I inserted the 16 tubes in their sockets, I was glad I received this amp to review during the fall and winter -- it will help cut down the heating bills!
I suspect that the M12s, with their 97dB sensitivity, really benefited from the additional power beyond that of my SET amp. There were oodles of dynamic power, superb soundstaging, realistic instrumental timbres, and, of course, the legendary handling of voices from the crossover-free Lowther drivers.
Vade Forrester vade soundstage. The amp uses 6AS7G triode tubes for the output section, five of them per channel.
SoundStage! Equipment Review AtmaSphere S30 Mk III Stereo Amplifier (3/)
I heard more detail, better instrumental separation, more spaciousness, better defined dynamics, and deeper though no more powerful bass.
Apr 18, Aside from the need to tune the bass output, the other first impression was of a slightly recessed treble range. It was the sort of tonal balance.
I used Radio Shack hookup wire as jumpers and, at first, got a buzz and distorted sound from the left channel. Warranty: Three years parts and labor, one year for tubes. The S delivered on the promise of a good OTL, eliminating a layer of complexity and nudging me closer to the musical experience.
On the front panel, there are two pilot lights: a yellow one on the left that illuminates when the main power is on and the amp is in standby, and a red one on the right that illuminates when the amp is out of standby and ready to make music. What do I make it out of?
All Rights Reserved. His impromptu vocal accompaniment was easy to discern and identify as someone singing.
Atma-Sphere S Mk. Amplifier small footprint, and all the features of our larger amps, the S represents the high-water mark of compact OTL design. For sale is my Atma-Sphere S MII OTL amplifier. Ive purchased a set of Atma- Sphere M Mk.
Mono blocks so this one needs a new.
Driver tubes are all Chinese 6SN7s. On the front panel, there are two pilot lights: a yellow one on the left that illuminates when the main power is on and the amp is in standby, and a red one on the right that illuminates when the amp is out of standby and ready to make music.
I briefly worried that I was getting too much bass from the speakers, but I soon got over it. There was no mistaking its tube virtues. Styling is gloriously retro. The amp would make a great prop for a s science-fiction movie.
Video: Atma-sphere s30 otl AudiogoN @ CES 2009: Classic Audio Loudspeakers + Atmasphere OTL amplifiers playing vinyl