erik_squires
Responses from erik_squires
| Class D amplifiers have very little phase shift Here we go, I added similar charts from a speaker simulator. See the bottom. You have both output and impedance for the same speaker charted. Both have phase angles. They are not the same chart. https://inatinear.blogspot.com/2020/02/class-d-ampli... | |
| Class D amplifiers have very little phase shift Here's the problem, I have two charts. Both from the same source. Both clearly labelled. Several people have used the first chart to claim it is the amplifier output phase chart. In fact, the actual amp phase is the second. Then George#3 (or 5?) ... | |
| Class D amplifiers have very little phase shift Yet you were one of the first to to pat the OP (who has no idea) on the back in the other now deleted thread George, you are one of the only people who even know that thread was deleted. I'm happy to say the moderators brought it back, but this... | |
| Class D amplifiers have very little phase shift Somewhere out there is a person who is so concerned with this thread his digestion is in serious danger of shutting down. | |
| Class D amplifiers have very little phase shift I meant ,misleading the way someone was trying to use the graph by saying ice 1200 modules had a frequency phase drop at 2khz. @djones51 You are right. I just meant to say that the geek who put it together never intended it to say what is being... | |
| Class D amplifiers have very little phase shift Because some of these comparison modules are measured with/without their output filters insitu, and the manufacturer has used Audio Precision "very high order" external “test filtering” instead for the graphs, and/or the frequency knee of the ou... | |
| Class D amplifiers have very little phase shift @djones51I don’t think the graph itself is misleading. It’s that is’ so very very rare. I have seen output impedance plots, rarely, but never one with phase also. It’s truly something for the geeks. Best,E | |
| Loudness Button I would have to conclude that if you feel the need for a loudness contour button in your system, something is amiss. I have no need for one in my system and the majority of my listening is done late at night at low volume. Just sayin It is tr... | |
| Class D amplifiers have very little phase shift It may help to think of where the test probes are. For the first chart, the probes are: Amplifier --> (+) Output Impedance (-) --> Speaker For the second: Amplifier --> Output Impedance --> (+) Speaker (-) | |
| Class D amplifiers have very little phase shift The first graph is the phase response of the impedance the second graph is of the frequency. To be more precise: The second is the graph, both frequency and phase, of the entire amplifier. The first plot measures impedance, the second magnitude o... | |
| Innuos - New Re-Clocker I'm sorry, I'm sure it is covered, but the PhoenixUSB is USB in as well as USB out? Am I understanding that correctly?? | |
| Class D amplifiers have very little phase shift @kijanki The values were picked at random. They aren't real. :) As I wrote, the point was not the values, but where the parts were. :) E | |
| Class D amplifiers have very little phase shift There's no way I would put a 10uF cap in parallel with a speaker!! :) | |
| Class D amplifiers have very little phase shift It is important to note that output impedance chart varies from 5 milliohms to 50 milliohms, so the effect at worst case of the magnitude and angle of the impedance on the speaker are tiny, so the lower chart with the actual output should give a v... | |
| Class D amplifiers have very little phase shift @imhififanI wrote this: The actual values are irrelevant for the purposes of this discussion. I meant to say that I just picked whatever XSim uses for the defaults. Best,E |