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atmasphere

Responses from atmasphere

7591 PushPull Amp Adjustable Bias Voltage Setting
Without a schematic it might be tricky to offer correct advice.Generally speaking though you are correct that you likely can run the bias a little cooler. The question is what would the reading look like? If you are reading a grid voltage, you wou... 
Tube Amp for Martin Logan Speakers
Transistors and tubes are the same speed (speed works out to bandwidth, so imagine how it was that color television was possible with tubes; color television requires some bandwidth!).It is the output transformer of a tube amp that usually limits ... 
The Hifi Trajectory Of Class D Amplifiers
You really do not have to defend your business every time someone speaks about liking SS kit better than tube kit.I may be going out on a limb here... but I would presume that you never sat down and gave a serious listen to the likes, of say, a Me... 
Need Tube Preamp Warmth
We have a dealer in NYC but he does not have the UV-1 in stock. Not many dealers do at this point- Essential Sound in Chicagoland is likely the closest right now. 
The Hifi Trajectory Of Class D Amplifiers
I'm pretty sure we can find 500W tube amp that doesn't keep up with 400W class D bass amp,Good luck with that. While I do think that day is coming, its still a long ways off and that amp simply does not exist yet. I've no intention of arguing back... 
TECHNICS SP10 MK3 POWER SOURCE / SPEED CONTROLLER
Lew, Just for the record the bucking technique I described does not use an isolation transformer and is a lot less expensive- literally can be done for under $20.00 in parts. 
The Hifi Trajectory Of Class D Amplifiers
I'm not sure why you evenbrought up the case of 500W class D not being able to keepup with 400W tube amp, since it is irrelevant to ourdiscussion and refers to particular design and the way powerwas specified (only 6.7% difference in perceived lo... 
need to break in equip after prolonged non-use?
If any amp or preamp has been sitting for a while, the filter capacitors in the power supplies will have to 'form up' again which can take some time. Until that time the equipment won't sound right. If its been sitting too long the filter caps can... 
Need Tube Preamp Warmth
Lowrider, Pops was describing the Dehavilland UV, not the Atma-Sphere UV-1.BTW Dick Olsher has a review of the UV-1 in the latest issue of TAS. 
No cartridge is good enough.
^^ Vinyl is forecast by the Library of Congress to last 2-2 centuries if stored properly. I have LPs that are already 60 years old and they play fine. It is an amazing technology that has overachieved and managed to hang around for a long time. Bu... 
The Hifi Trajectory Of Class D Amplifiers
Yes, the semiconductor industry really doesn't want to make linear devices if they can help it. Switch mode devices are easier and more profitable. Kijanki, in case you didn't know it, most decent bass guitar amps are built along hifi lines. They ... 
Ideal Cheap Low-Watt Amp for Martin Logan Quest
If you forget and leave the amp on, you might want to think about the fact that a class D amp will not drain the batteries nearly as quickly!Seriously, if I were you I would be looking at speakers that are easy to drive. When you make an amplifier... 
EL34 SE as stable with complex music as EL84 PP ?
Yes, the Music Reference amps are a good example of how to use the EL34. 
No cartridge is good enough.
The cartridge usually isn't the problem. The tonearm and its ability to track the cartridge is. If you feel you are not getting everything from the grooves its likely you have a problem with the arm more than the cartridge.This assumes of course t... 
What vintage speaker might you use today
How about a set of Electro-Voice Patricians? Good bandwidth, efficiency and quite revealing.