atmasphere
Responses from atmasphere
| Class D Technology The snag class D still deals with is the control loop (feedback). Its easy enough to build a class D amp that does not use loop feedback. | |
| Do equipment stands have an impact on electronics? For the record, I still use my Pioneer receiver, and it cost all of $150 at Costco. It offers six reasonably hefty power amps with max distortion of 0.1 percent. This is not great, but it’s surely better than any tube amplifier! At full output... | |
| Tube Tester Mutual Conductance Falling - What it Means? Yes.A gassy tube tends to run hotter. As it does so, it slowly releases oxygen molecules trapped in that shiny deposit on the inside of the glass. As that happens the edges will slowly turn brown, signaling a failure on the horizon.So if you can s... | |
| Do equipment stands have an impact on electronics? Atmasphere, I never said (or meant, anyway) that power cords don’t make a difference. Obviously using 22 gauge wire to feed a 1,000 watt amp is inadequate. What I’m always careful to say is that replacing one competent power cord with another i... | |
| Do equipment stands have an impact on electronics? There were no speaker isolation stands 25 years ago. Not in the literal sense of the word, anyway. 25 years ago vibration isolation was not even a gleam in some audiophile's eye. Using the laser as you described would not give a sense of how mu... | |
| Can an old Thorens Table be "Over Dampend" to the point where sound is adversely effected? A lot of people like to dampen these older Thornes tables either on the interior of the wooden plinth or all over the inner metal spring board, and arm board, they use things like "Blue Tac" or that Dynamat stuff in car doors. It will kill the ... | |
| Warm-up time for amps and preamps Leaving your system on all the time can dry out the electrolytic capacitors (even on tube equipment). This statement is incorrect. Usually filter caps have the longest life if kept charged. However, they don't like heat, insofar as long life is c... | |
| Class D Technology There is about 1% of switching voltage noise on the speaker cable since filter is not perfect but, as I said before, 1/300 wavelength antenna won't radiate. In addition, electricity in speaker cable flows in both directions canceling the most ... | |
| Can an old Thorens Table be "Over Dampend" to the point where sound is adversely effected? "Atmasphere"...What is an example of damping correctly?Using an appropriate damping material (extensional when damping surfaces; constrained when damping between surfaces), not using damping when coupling is required (such as between the arm and t... | |
| Tube Physics Question Does the KT120 compress the signal, while the KT88 does not?No. | |
| Class D Technology Speaker cables would be a very poor antenna. Since wavelength of 500kHz switching frequency is 600m a typical 2m cables would be 1/300 wavelength antenna. Usually antenna becomes rapidly ineffective below 1/10 of the wavelength.That's true, b... | |
| Do equipment stands have an impact on electronics? Sure- why not? Same test, just using the Diament system. If you did this all with a sweep tone, it would be possible to show the strengths and weaknesses of the 'isolation' system under test.Sound Anchors did something very much like this- only th... | |
| Tube Tester Mutual Conductance Falling - What it Means? The tube is slightly gassy. It will work but likely will not last as long. | |
| Can an old Thorens Table be "Over Dampend" to the point where sound is adversely effected? If your damping is done correctly its impossible to overdo it. | |
| Class D Technology I'm no scientist but I understand the difference between theoretical noise and actual verifiable noise and that, empirically, only the actual noise can actually be heard. by us humans. Noise needs to be heard to exist. Class D amps are ne... |