atmasphere
Responses from atmasphere
| Fritz Speakers I've been playing the Carbon 6s, which is his smallest speaker, for about a year. I only play them at lower levels, since they are part of my bedroom system. I didn't want to sacrifice detail just because its a smaller system. They do just fine! | |
| The 300B World 300b needs carefully matched loudspeakers. Otherwise, it's pushed into higher distortion you want to surf the 1st few watts. Most SET users don't use SET-friendly speaker systems. I have a few 300b amps now. They do best with front horns or full-... | |
| Do 5-pole DIN tonearm connectors deteriorate the sound? Currently I have issues with hiss and a deep background hum, indicating bad shielding of the tonearm wires and some grounding issues. @reimarc You need to figure this out before worrying about rewiring the arm or dealing with connectors! Otherw... | |
| The 300B World It has been my contention for quite some time that those with thorough engineering and science backgrounds are open minded and do not dismiss what listeners say they hear. Of course engineers and scientists use and rely heavily upon measurements.... | |
| The 300B World Technically capacitors give wider bandwidth but transformer put the same driver tube in more linear mode with less distortions. This statement is incorrect. You can operate any tube using coupling capacitors just as linearly as using an interst... | |
| Cathode bias caps The correct term is 'cathode bypass' capacitor. The capacitor is biased with a voltage larger than any audio signal it might pass. As a result, its distortion is quite low- rivaling film caps with no problem at all. The reason electrolytic caps ... | |
| 2023 AXPONA Show Report We tried to connect our phone via BT to the Topping DAC in the room but they didn’t have the remote control to do the pairing. @smatsui In case you ever run into this again, the Topping does not need the remote to switch inputs. You push the ma... | |
| The 300B World I think some tweeters are going to expose that more than others.In my experience higher sensitivity ones like compression drivers seem to be much more fussy about amplifiers than less efficient ones using say soft dome tweeters.Or perhaps they ar... | |
| Willsenton R300 Circuit Design Issue That Zener diode should not have failed on its own. I would be suspicious of the filter capacitors that it feeds. | |
| The 300B World A typical 300B SET with zero negative feedback. Frequency response .The green line represents a simulated 8 ohm speaker. @jtgofish FWIW the kind of speaker in the simulation is rarely used with SETs. They are low power and so speakers used with... | |
| The 300B World Ralph, the current draw is constant averaged over one cycle of the lowest frequency present. Otherwise the current is rising and falling with the input signal. This of course is what filter capacitors are for. If the last capacitor in the pow... | |
| Can we create a consensus list of the TONALITY of different amps/preamps/brands? @hoodjem If you want correlation, here's what needs to be done: 1) show the distortion spectra of each amp 2) show the frequency at which distortion rises. Rising distortion with frequency usually isn't a good thing. Ideally it should be a stra... | |
| Warmer class D amps for magnepan? I really think the use of a tube input stage can be beneficial with Class D power. Several makers doing that now. IMO/IME this is a Bad Idea. Why not just build a proper input buffer? The tube suggests that there's a distortion problem in the c... | |
| Recommendations for a vacum tube tester +1 | |
| Recommendations for a vacum tube tester @tksteingraber Usually when there are multiple scales for umhOs, there is a switch to go along with it. So this particular example is puzzling. Unless the meter was replaced at some point. I've used a tester like this, but the last time I saw one ... |