atmasphere
Responses from atmasphere
| Tube Preamp Paired with Tube Phono Stage? Chervokas, one of the problems with RF is it can be rectified by elements of the preamp circuit itself. Tubes often tend to be a little less susceptible on account of transistor junctions can rectify the RF energy fairly efficiently if not properl... | |
| Analytical or Musical Which way to go? How can you debate 'taste' preferences? It does make for a lively discussion, but as I first heard from my Dad...'There is no accounting for tastes'. But again, it does make for a fun discussion.Its true that there is no accounting for taste. But ... | |
| Tube Preamp Paired with Tube Phono Stage? Chervokas, As far as an undamped LOMC goes, there is no effect whatsoever in the audio band, other than the voltage output- with no load its output will be a little higher, not much.The issue is that the coils in the cartridge have so little induc... | |
| Tube Preamp Paired with Tube Phono Stage? Chervokas, to be clear: if you load the cartridge with a lower resistance than your 10:1 or 11:1 ratio, all that happens at audio frequencies is you may reduce the output voltage of the cartridge. Its bandwidth will be unchanged.So in theory you w... | |
| Why do I like Class AB better than Class A? Mrtennis, you can expect most transistor amps to be somewhat bright and lacking bass on most full-range ESLs like the Quad ESL 63.The impedance curve of such speakers and the way they operate simply does not favor most transistor designs. there is... | |
| Problem with loud buzzing noise on amplifier This sounds like the amplifier could be oscillating. Its not likely to be a transformer problem- that would not damage output transistors. I would get the amplifier to a reliable service department or the manufacturer. If you don't attend to it, t... | |
| Explain Class A amp to non audiophile friends What is the difference in a single ended solid state class A amp and one that is not single ended?A single-ended class A transistor amplifier will be very inefficient. It will also be higher distortion, as the 2nd transistor of a push-pull class A... | |
| Graaf GM50, can it drive Tannoy Turnberry ? This speaker is an easy load for any OTL! | |
| Tube Preamp Paired with Tube Phono Stage? Odd that Boulder would suggest 100 ohms generically for all moving coils.Chervokas, read my posts above and you will see why this is not odd at all.Actusreus, the Atma-Sphere preamps are intended as stand-alone phono reproducers. People ask us all... | |
| Why do I like Class AB better than Class A? Most transistor gear I have seen really have long warm-up times- 24 hours or more.Theoretically class A gives you lower distortion. When you remove distortion, the amp should sound smoother and more detailed as distortion can result in harshness a... | |
| Explain Class A amp to non audiophile friends Charles1dad, Yes it is. You have to keep in mind though that the ear hears many distortions as tonality issues. Also, the presence of distortion tends to obscure detail so in the range where the distortion appears the amp will likely sound harsher... | |
| Tube Preamp Paired with Tube Phono Stage? Actusreus, if Fremer is not 'full of it', he was hearing those differences due to issues with the **phono section(s)** rather than the cartridges. 47K, 100 ohms, the cartridge does not care. I run my cartridges (Transfiguration Orpheus, ZYX Univer... | |
| Need understanding on amperage Right! Now this is just my feeling about the matter, but I don't think the 60 amp rating is realistic if it means that the amplifier could be damaged or the like in the process. At that point we are clearly operating outside of the linear region o... | |
| Cleaning the equipment We sent a preamp to TAS for review back about 15 years ago or so. It died when hp's cat urinated in it so we got it back for repair. Yuck!The only way to sort it out was the manual high-pressure car wash. While others were washing mud off their pi... | |
| $$$Sensitive Speakers with $$Amps? Charles1dad, its not like I listen to those levels all the time! But there are certain LPs, that in order to sound life-like, have to be allowed to do what the composer and musicians had in mind. The Verdi Requiem (RCA Soria edition), side one tra... |