atmasphere
Responses from atmasphere
| The sound of glasswear Tubes were supposed to be obsoleted about 50 years ago. Funny thing- in most industries they are, but not in the field of audio. Must be a reason, huh? | |
| Calculating total capacitance Yes, I think you will find it easier to hit that 'sweet spot'. Please report back on your findings :) | |
| loading resistor question Yes, the resistors themselves do make a difference! | |
| Help Diagnose Tube Preamp Problem Skf3636, the deoxit gold is good stuff, but should be used sparingly, particularly in tube gear! If I were you, I would pull all the tubes out, and carefully wipe down the sockets and bases of the tubes to remove excess chemical. Too many times, I... | |
| Why Don't We See More High Current Electronics? Foster_9, I think there was a typo in your last question- the input impedance you are looking for is 50K ohms (50,000 ohms) or 100K ohms.Most transistor amps, FWIW, seem to be closer to 10,000 ohms input. | |
| Why Don't We See More High Current Electronics? The first is simply the lack of citation of any historical or scholarly references, or measurement data. This need not be . . . I think that Atmasphere could actually support his design choices much better by a properly researched, documented, and... | |
| Why Don't We See More High Current Electronics? Yeah, we've had this discussion before. Same old same old. Lots of assertions, but no supporting data. Negative feedback is bad because it causes time-domain distortion, distortions we can measure aren't importantOf course there is plenty of suppo... | |
| loading resistor question Rodman99999, thanks for pointing that out. If I read that ad properly, it still sounds like there can be an issue with RFI caused by the tank circuit I mentioned.However if this preamp is immune to RFI, the loading of the cartridge will not be fou... | |
| Which speakers to get for a Very Large Room. If they are in the budget, the Classic Audio Loudspeakers do the job quite nicely. Efficiency is 97-98 db, impedance is 16 ohms and the low frequency cutoff is 20 or 22 Hz, depending on if you get the T-1 or T-3. In a room the size mentioned, one ... | |
| Help Diagnose Tube Preamp Problem Sometimes AC power switches can develop issues that will cause crackling. This is caused by bad contacts in the switch. Tapping on the switch can sometimes excite the behavior.If you get a pinging sound by tapping on the switch, it is because vibr... | |
| Why Don't We See More High Current Electronics? Yes- audio equipment does not care what kind of music you play on it. An amp with a low output impedance does not have a frequency response that varies with a speaker's impedance.That depends on how the speaker is designed. Take a look at http://w... | |
| Why Don't We See More High Current Electronics? Peterayer, we agree on that- all the system can do is reproduce the recording as accurately as possible. | |
| Anyone tried Soundlab Dynastats out of phase? I remember in the old days (early 90s) we could blister the paint off the walls with a set of Dynastats and our M-60 amplifiers, which played a lot of authority in the bass at the same time.Later versions of the speaker had the new toroidal transf... | |
| loading resistor question Romaxim, in a nutshell:The issue is that with LOMC, the inductance of the cartridge and the capacitance of the cable and input form a tank circuit resonant at ultrasonic or RF frequencies. The activity of the cartridge on the LP is enough to excit... | |
| FURMAN, PS AUDIO, ISOTEK?? With any power conditioner that has magnetics in it (the Furman and the PS Audio both do) should not be run past 50% of their capacity, else they will degrade things rather than help. The reason is distortion of the AC power, which usually becomes... |