atmasphere
Responses from atmasphere
| Richard Clark $10,000 Amplifier Challenge - Why Couldn't Anyone Pass this Test?? Damping factor of the Macs is said to be 12. What, if any, difference in frequency response of my speakers should I hear due to the varying impedance curve?@dentdog with that much feedback, none at all. OTOH, the fact that the amp runs feedback me... | |
| Amperex 6SN7GTB does this indicate different manufacturing eras? Yes. To change the tooling usually was a pretty big deal. So its not like one tube could have been made a few days from the other one. It would have taken some time to change the tooling (which is n... | |
| Time for a new tube system. B&Ws are traditionally not tube-friendly speakers. IME, a fair bit of performance of the tube equipment in use in this system already is left on the table on account of the speakers being harder to drive.When shopping for speakers, look at wha... | |
| Richard Clark $10,000 Amplifier Challenge - Why Couldn't Anyone Pass this Test?? Then to just complicate what I said above, the current output of an amp comes into as well, to keep the said control over the speaker.This is a common myth. An amplifier can have a very low output impedance without having much ’current’. Ralph... | |
| Richard Clark $10,000 Amplifier Challenge - Why Couldn't Anyone Pass this Test?? Then to just complicate what I said above, the current output of an amp comes into as well, to keep the said control over the speaker.This is a common myth. An amplifier can have a very low output impedance without having much 'current'. I put th... | |
| Richard Clark $10,000 Amplifier Challenge - Why Couldn't Anyone Pass this Test?? @georgehifi , that's correct! As I pointed out in the article, any time you mix equipment from the two technologies, the result is likely to have a tonal aberration.The example you give is a good one, although 'fry your ears' is likely not what wo... | |
| Amps Atma-Sphere M-60 Mono blocks OTL design The Nirvana is a project to see how far we could push the technology. Its power transformers are spec'd differently, it has regulated DC filaments for the driver section and regulated high voltage for the driver section. The amp section is mounted... | |
| Richard Clark $10,000 Amplifier Challenge - Why Couldn't Anyone Pass this Test?? What Al said, plusYou know, it is a real shame that you take this tack, because I actually think you have a lot of fans, and built good products, but I've gotten really tired of you constantly hammering the superiority of high output impedance ... | |
| Richard Clark $10,000 Amplifier Challenge - Why Couldn't Anyone Pass this Test?? If this had any basis in reality, at all, speaker testing would be based on power vs. frequency. It isn’t. It is input voltage vs. frequency. Hmm. So you’re saying that a solid state amp can make as much power into a 30 ohm load as it can an 8 ohm... | |
| Class D is just Dandy! For that matter, Bolt can also "compete" against a cheetah.https://www.youtube.com/watch?v=VZuRTNidtCM:-)But I think we all know what the others mean by "compete," whether we agree with them or not.Best regards,-- AlFWIW dept.:@almarg , you might ... | |
| Richard Clark $10,000 Amplifier Challenge - Why Couldn't Anyone Pass this Test?? They need about 15 Watts of the best amplificationThe above quote is taken from the link Erik provided. I've serviced the 15-watt tube amps that Quad made to go with the '57s; in a nutshell driving a 'difficult load' is something they can't/don't... | |
| HH Scott 350 A Tuner Repair He'll probably already know this but he'll need a muliplex generator and a tube tester. Replacement of the filter capacitors is a very good idea.Some of the older mulitplex circuits could make a whine or whistle if they were not properly aligned. ... | |
| Richard Clark $10,000 Amplifier Challenge - Why Couldn't Anyone Pass this Test?? This is a reason why I strive to make my speakers easy to drive. Easy to drive means they will sound great across a variety of amplifiers and electronics. +1Not surprised by your finding as Quad ESL can be an extremely tough load. Differences i... | |
| Amps Atma-Sphere M-60 Mono blocks OTL design We've got a lot of positive comments from customers using audiophile fuses.The location on the amps that makes the most difference is the one by the power cord. That is also the one that is most likely to be blown, as a power tube failure can blow... | |
| Class D is just Dandy! Sorry- I've said as much as I can offer at this point:1) its not a module but our own circuit2) it looks like we have something to contribute in terms of technology.Oh, and it will be balanced of course :) |