atmasphere
Responses from atmasphere
| Allnic OTL/OCL Phono vs Allnic DHT To do this, Allnic uses a “floating power supply circuit”, a design that deals with the issue by not creating any DC potential in the first place, or such a small potential that it is harmless.” @kevalinaudio We have two patents concerning a me... | |
| Would You Rather Own A Good SET Amp, Or A Great Push Pull Amp? Virtually all the amplifiers on the market are based on a push-pull symmetry model. The push-pull symmetry topology has no particular basis in nature. Vacuum tubes and transistors don't either. This is a red herring. I don't normally disagree ... | |
| Amplifier Paradox…and more! @tksteingraber This article is full of misinformation. I’ll point out a few: Class A designs are known for sweetness and warmth, Class AB offers a balance of power and finesse, and modern Class D amps bring speed and efficiency without the ste... | |
| Your journey with lower-watt tube amps -- Can a kit be good enough? @hilde45 The Z-565 is the output transformer. Its ultralinear taps are supposed to be at 25%. It might be worth measuring their impedance to see if that would work better as a plate to plate load. Off the top of my head I can't say since the imp... | |
| Allnic OTL/OCL Phono vs Allnic DHT never heard the sound of OTL phono amps. @joeycastillo nearly all phono sections are OTL; OTL stands for 'Output TransformerLess'. Since we have been making preamps with direct-coupled outputs (so OCL and OTL) for decades now, we had consider... | |
| Would You Rather Own A Good SET Amp, Or A Great Push Pull Amp? They subjectively have a faster attack (particularly noticeable on the reeds in oboes and clarinets and more organic reverb (best heard on good piano recordings).While @atmasphere is firmly advocating balanced connection I have so far been unable... | |
| Would You Rather Own A Good SET Amp, Or A Great Push Pull Amp? @yoyoyaya I remember hearing something like that too. The thing about distortion is we don't put a weight on the harmonics generated. The higher ordered harmonics are the ones that really mess with the ear- the 2nd and 3rd, hardly at all. But ... | |
| Your journey with lower-watt tube amps -- Can a kit be good enough? @hilde45 I applaud your interest in experimentation. Triodes will give a pleasant distortion. But if you want to maintain the feedback you'll need another stage of gain. Another consideration is the tube in triode mode will want to see a differe... | |
| Would You Rather Own A Good SET Amp, Or A Great Push Pull Amp? It is a two camp showdown one camp being group 1, who evaluate through solely having used their experiences of End Sound produced and the impression made on them. The other camp, group 2, who are much lesser in their number than group 1, and are... | |
| Would You Rather Own A Good SET Amp, Or A Great Push Pull Amp? 845 SET can drive some speakers not often associated with SET, power supplies with these quite substantial, around 900V plate voltage with these. With the right speakers a nice 300B amp running top tier 300B tube like the new Western Electric is ... | |
| Your journey with lower-watt tube amps -- Can a kit be good enough? What are your thoughts on reducing the bias a bit on the voltage? @rankaudio The power tubes can handle it well enough. But that will affect the distortion signature of the amp but by how much is hard to say. my tech and I will be adding a sw... | |
| Devore O/96 with high powered amplifiers could there be other factors than damping factor? @avanti1960 Yes. The differences we are used to hearing between amplifiers is mostly the distortion signature of that amp. Our ears use harmonics to tell the difference between the tone color... | |
| Your journey with lower-watt tube amps -- Can a kit be good enough? @rankaudio The problem with using a solid state rectifier in the ST70 is the plate Voltage tends to run a bit on the high side. If the filter caps and operating points of the power tubes are not addressed on this account, it could lead to trouble.... | |
| Would You Rather Own A Good SET Amp, Or A Great Push Pull Amp? I have loved SETS for a long time, but I simply cannot afford a "great SET". And, being retired, never will. @nightfall I’ve yet to hear an SET at any price that could beat a good quality PP tube amplifier. I’ve been investigating SETs since t... | |
| 20 Vintage Amps That Prove They Really Don’t Make Them Like They Used To I owned two of the amps in the article-Harman Kardon Citation II, Dynaco Stereo 70. Compared to the amps I have now ARC, Unison, they are euphonic and transients are slower. They were also lacking in top end, but so were the speakers that were ma... |