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atmasphere

Responses from atmasphere

current versus watts
Sound quality has little to do with current (otherwise the tube industry would have died decades ago) and has everything to do with distortion. That is a topic for a different thread.'Current' is an issue about which there is a lot of mythology. s... 
Tube Testing: Is Measuring Plate Current Important
The Hickoks are good testers. Usually you don't need plate current to test the tube, but you should understand that tube testers like the Hickoks, which are called transconductance testers are in fact an approximation. But they are usually much mo... 
sweep tubes and audio application?
The 6LF6 was used by Futterman in some of his OTLs. They have high-current low-voltage capability. They have become rather expensive as they are no longer made.These days the EL509 is the tube that replaces the 6LF6 although not directly. It is a ... 
Are linear tracking arms better than pivoted arms?
The idea that a pivoted arm of correct effective mass is going to induce greater side-to-side excursion than an air-bearing straight-tracking arm strains credulity. 
help me remove noise from my vinyl setup
Scar, the Sonata has an impedance much lower than that.The Jensen JT-44K-DX will likely do the job quite well. seehttp://www.jensen-transformers.com/mc.html 
The Richard Clark "all amps sounds the same" test
Yes, 'under a given set of conditions' for example if you are dead, its hard to tell two amps apart. Is he a zombie? 
Atma-sphere 3.0 to 3.1
Elberoth2, I've been listening to the Sashas with MA-1s a lot recently. They seem to work quite well together and is what I based my comments on the Sashas on over on the Speakers forum.If you run the amps with less than the full complement, due t... 
Tube Fireworks
Tubes have a cathode that emits elections. It is heated so it will emit electrons more efficiently, and finally it is also treated with a sort of paint that improves its efficiency even more. It is this coating where you have most of the arcing pr... 
Are linear tracking arms better than pivoted arms?
Mepearson, not to muddy the waters too much but I spotted a comment from Dertonarm that needs correction: the bearings in the Triplanar as good as you can find. They are custom-built by an aerospace bearing supplier, and are 3 or 4 grades higher i... 
Atma-sphere 3.0 to 3.1
Elberoth2, if you use a set of ZEROs, it will be outstanding. The Sashas don't need a lot of power but the M-60 does not like 4 ohms. The ZEROs fix that and will get you double the power that you would have without them on that speaker, and you wi... 
Sumptuous, lush, rich, liquid golden midrange amp?
Springbok10, at any rate, if you want sweet, start with a triode amp. They make less of the odd-ordered harmonics that tetrodes and pentodes do. We describe those harmonics as 'hard, harsh' bright', etc. (Of course tubes in general make less of th... 
Sumptuous, lush, rich, liquid golden midrange amp?
Springbok10, sounds to me like what you are describing is an SET. DeHavallind are some of the best- if you can find a GM-70 that might suit. 
Are linear tracking arms better than pivoted arms?
Lewm, Exactly! About ten years ago I did initial sketches on a tone arm that used a mechanical track that had zero bearing slop. The are was otherwise conventional in that it used a pivot like a radial tracking arm, and a servo that was light-beam... 
Are linear tracking arms better than pivoted arms?
Sometimes an LP is rare enough that you put up with what you are able to find. All LPs have some warp. When speed variations are introduced, its likely that when they are subtle you are more likely to hear them as a wavering in the soundstage.I ha... 
Atma-Sphere S30 MKII
in the S-30 you can just pull power tubes. My speakers work fine with 3 per channel, but they are about 97 db 1 watt/1 meter. The output impedance does get raised so with certain speakers you might introduce a coloration.