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atmasphere

Responses from atmasphere

Your best ''outstanding'' products in last 5 yrs?
I'm a big fan of the Triplanar tonearm. It is very easy to adjust, very consistently, with the hardest bearings of any arm made. So far its the closest LP presentation I have heard where the LPs I've done sound like the actual tapes.So far the bes... 
Sonic atributes ultralinear vs tetrode vs pentode
Pete Millett has a nice website with a lot of tube-related information. Table 1 at the end of the document at this link (a quick read) tells the story:http://www.pmillett.com/file_downloads/ultralinear.pdf 
Sonic atributes ultralinear vs tetrode vs pentode
The rub comes when the statement is made that we can meet that measure AND "approach triode linearity" at the same time. Impossible.Possible:"approach triode linearity" = linearity curve lacking the 'kink' of pentodes, looking far more like a trio... 
Sonic atributes ultralinear vs tetrode vs pentode
Trelja, IM(H)O, you need to step back a couple of paces and look consider how most audiophiles would see this: The fact that a triode makes 20-30% of pentode power means to most anyone that if you have a pentode amp of 60 watts, if it was then wir... 
Good tube amp kit for sale these days
FWIW dept:http://www.atma-sphere.com/Products/Kit 
Preamp with phase invert and balanced out???
The Atma-Sphere MP-1 and MP-3 are both fully differential and balanced, and both have a phase inversion switch. They also have the ability to drive very long interconnects even though they are all-tube. 
Have I mismatched my preamp/amp?
Those are pretty amazing output impedances for any preamp, let alone a tube one, how does he do it?Lots of feedback. But if you check the 20Hz output impedance you will find it to be higher. 
Tube amps with Apogee Scintilla's your thoughts ?
About 20 years ago one of the first reviews ever written on our amps was in TAS. Most of it was written by Steven Stone, who had a set of Apogee Full Range speakers, which were 1 ohm.At the time we had a product called the Z-Music, which was an au... 
How Much DC is OK on a Power Line?
Well Jim, I'm certainly open to finding out I've been wrong about things. Its how we learn :)As far as the earth connection, what I am talking about here is that the hot side of the line is measured with respect to the neutral (ground). So if ther... 
How Much DC is OK on a Power Line?
Hmm. So, with the AC line having one side at ground, there's supposed to be a DC level? The idea that a hair dryer can shift the ground potential to a DC level seem far fetched- it would require that the neutral side of the AC line be not connecte... 
How Much DC is OK on a Power Line?
I have to take umbrage with the quote above. Unless there is a center-tap on the primary side of the power transformer (and there never is) this DC thing is of no consequence whatsoever as the power transformer will simply see that total voltage a... 
what is the proper loading
The correct loading with vary with your interconnect cable and how sensitive your phono section is to RF. If it does not care about Radio Frequency energy at its input, you will find that loading does not make much of a difference.The loading only... 
Good Tube Selection for Atma Sphere S30?
Hello Al, We reject the tube if we see less than about 10M. On some speakers its not such a big deal, but if the amp is used on horns tubes with such leakage are trouble makers.Its not really that hard to find tubes without leakage (+50 Mohms) if ... 
Sonic atributes ultralinear vs tetrode vs pentode
http://forum.audiogon.com/cgi-bin/fr.pl?aamps&1323578084&openflup&4&4#4Despite the distraction, this still holds true. 
Good Tube Selection for Atma Sphere S30?
That's correct. The 6SN7 is the tube where we've seen problems. The Russian power tubes work just fine :)