lewm
Responses from lewm
| TUBE BIAS, socket to me! As tubes age, they lose transconductance. As they lose transconductance if the grid bias voltage is fixed (not varying with respect to cathode voltage), you gradually run out of oomph (for want of a better term). The amplifier may begin to sound... | |
| TUBE BIAS, socket to me! Elliot, I am not quite sure I understand your question, "Sonically, what are your experiences?" Do I think biasing an output tube makes a difference? That goes without saying; a power tube cannot operate without some chosen parameters: plate vol... | |
| 16 ohm speakers: any amp sounds better with more resolution. speaker cables less critical. Ralph, What I recommended to Elliot is that he first experiment with the settings of the L-pads in his speakers until he arrives at a solution that he wants to live with long term. Doing this would automatically involve accounting for the driving... | |
| MC cartridge High output vs Low output Here we go again. Effective mass or tip mass or moving mass cannot be the whole story, because if it were then moving iron cartridges would sound the best. Moving iron cartridges not moving coil cartridges, have the lowest moving mass as a group. ... | |
| New Synergistic Research Record Mat That was Mijo. He has a point. | |
| TUBE BIAS, socket to me! I suggest you buy an elementary treatise on how vacuum tubes operate, and then read it. In the accepted model for a vacuum tube, electrons are emitted from the cathode when it is heated. The cathode accumulates electrons and hence is thought of as... | |
| 16 ohm speakers: any amp sounds better with more resolution. speaker cables less critical. Elliot, What you say to Cisco (Cisgo) may be true for an SS amplifier but for a tube amplifier, especially a transformer coupled one, the reverse is more likely, for a given tap on the output transformer: An amplifier that makes 12W into 8 ohms m... | |
| Lamm LP2/2.1 vs Luxman EQ-500 3 Easy, On this forum, anything goes. No response should be surprising or necessarily useful to the OP. | |
| Tonearm suggestion for Garrard 301 schedule ll oil bearing? "Unlike aluminum titanium rings like crazy."Have you got a reference for that, Mijostyn? | |
| How to choose the right protractor for my effective tonearm length Feickert is fine for your needs. But so too are many other choices. By the way, the 223.5mm and 215mm parameters are the pivot to spindle distances recommended for your two tonearms, not their "effective length". Effective length = pivot to spin... | |
| New Synergistic Research Record Mat I think of record mats as akin to seasoning on food. Not everyone will have the same preference, and so price of the mat need not have a linear relationship to performance, since performance is both a personal opinion and also dependent upon the ... | |
| VPI Aries 1 Motor Hum? It probably did not stop vibrating; instead the vibrations became inaudible when you re-positioned it on the shelf, perhaps because the shelf does not produce sympathetic vibrations when the motor is in its new position. Just as good. | |
| 16 ohm speakers: any amp sounds better with more resolution. speaker cables less critical. For those who don't know, Sound Lab drive their full range ESLs using two audio step-up transformers wired in parallel, one for bass and one for treble. Audio frequencies are divided by a first order crossover network (inductor in series with the... | |
| 16 ohm speakers: any amp sounds better with more resolution. speaker cables less critical. Dear Raul, Of course you are correct that no speaker has a flat impedance. Yet it's common practice to refer to speaker impedance with a single value. I am guilty of that as is almost everyone else in the audio world. If it were of some importa... | |
| 16 ohm speakers: any amp sounds better with more resolution. speaker cables less critical. Reactance of the cable is also important. But now you’re starting a different topic. |