atmasphere
Responses from atmasphere
SET vs OTL A single-ended triode amp will always have an output transformer. The transformer is both the boon and doom of the amp- it allows the tube to drive the speaker, but the bigger you make the transformer, the more limited the bandwidth will be.As a r... | |
best WOOFER ??? Mapman, the new field coil 15" woofers in the Classic Audio Loudspeakers are also really impressive. They are faster than the TADs, more efficient and have similar low end response. | |
Atma-Sphere S-30 MK3 Update..... Microstrip, they are built in a very similar fashion, and so have similar internal links. | |
In Europe, owning Coincident Super Victory/ TV IV? I'm not in Europe, but we find that we need about 60 watts or so to really make the speaker sing. | |
Atma-Sphere S-30 MK3 Update..... Pubul57, its true that we don't match the tubes. They have a mu of 2, which is to say that they have the lowest gain of any power tube made. So you have to drive them with some really high input voltages, compared to a pentode. The result is that ... | |
best WOOFER ??? TAD makes some excellent 15" woofers that have free air resonances in the mid-low 20s. They are also easy to drive: 8 ohms and 97 db. | |
Loudspeakers with a wide sweet spot Although I am a big fan of horns and field coils, the speaker with the widest sweet spot that I have seen/heard so far is made by High Emotion Audio. The tweeter is unique and patented. It goes down to 2KHz- well within the range of image definiti... | |
Atma-Sphere S-30 MK3 Update..... Pubul57, these days we've been using the Chinese 6AS7s. Its been a lot less politics than using the Russian tubes. | |
DIY balanced interconnects Hi Kirkus, actually the input impedance of our amps is 100K single-ended, 200K balanced. On the bigger amps there is an input termination switch that allows for 600 ohms between pin 2 and 3 of the XLR. Although I am a fan of the standard, common s... | |
DIY balanced interconnects Well, Kirkus, the issue is actually quite simple. What are the rules of human hearing? Once understood, then we simply apply physics to create the means that will obey those rules as close as possible.The most important rule is how we perceive lou... | |
Best speakers for tube amp looking for suggestions Audiokinesis also offers high performance for tube amplifiers at reasonable prices. It helps to find out what the designer was using when he designed the speaker- Coincidents were designed on tubes and so are very tube friendly also. | |
DIY balanced interconnects Kirkus, if you are referring to characteristic impedance, we in fact examined that issue about 20 years ago. The fact of the matter is that if you can determine the actual characteristic impedance of the cable and then terminate it correctly, the ... | |
DIY balanced interconnects To sort of sum up what I have been trying to say here. if you want to have the cables not be a part of the overall system sound, the old 600 ohm standard is the way to do it. The audio world in general has seen a shift from what I call the Power P... | |
Does impedance matter? Magfan, impedance actually is pretty important. I've read the whole thread here and not seen any of the important issues addressed- here they are.1) The lower the impedance, the more power you will get from a transistor amp, within the limits of t... | |
DIY balanced interconnects Right, Kirkus, my Neumanns are U67s. After doing some measurements with them, we found that the transformer was more linear when driving a lower impedance- even 600 ohms was too high. The 600 ohm standard arose from the characteristic impedance th... |