kijanki
Responses from kijanki
| ... how important is Damping factor in determining what amp to buy Vibration of the speaker membrane, without signal, causes back EMF producing current that flows in opposite direction working against membrane motion, hence damping vibration. This current (damping effect) depends on the total resistance in the ci... | |
| Who tried Class D only to return to S/S or Tube There is only about 1% of 500kHz switching noise on the speaker cable, and that is absolutely irrelevant. Placing an ear next to tweeter proves only that people cannot hear 500kHz (almost complete silence). Modulating 500kHz by the tweeter would r... | |
| Producing 500hz and 1.2khz and 3knz and infinite others http://www.thenakedscientists.com/HTML/questions/question/3077/ | |
| Dual Differential / Balanced? Thank you Ralph, I will keep reading more. I use fully balanced stages in low level amps without any ground reference. It has bandwidth of few kHz only, but full scale of the signal is in single millivolts. At the end A/D converter with differe... | |
| DAC or CD Player. Help! jamcl63, Welcome. I'm in this rabbit hole since 2005 for the same reason - to learn. You pretty much answered your own questions. Yes CDP has its own D/A converter and analog electronics but it also has digital output providing serial stream of... | |
| Dual Differential / Balanced? Charles1dad, Thank you. I often engage in discussion with Al or Ralph to learn more. It is difficult to understand why particular architectures are being implemented since it is often fueled by demand. I like to understand technical merits of d... | |
| Dual Differential / Balanced? Al, I agree, that was invalid point - double DF doesn’t make much difference in most cases. As I stated in my older posts speaker’s impedance is mostly resistive and it is in series with back EMF reducing max possible DF to about 1. As long as amp... | |
| Dual Differential / Balanced? Al, I was looking at overall output impedance that speaker generated EMF sees, and that would be double. I also stated that fully balanced design is not only unnecessary to provide great noise rejection, but in fact might be worse than one achieva... | |
| Toslink VS coax VS other forms of Digital transfer Toslinik vs Coax. It is a system thing. Coax, because of faster transitions is less sensitive to system noise, but have some sensitivity to ambient noise and reflections within the cable (use <8" or >1.5m cable), as well as ground loops. ... | |
| Dual Differential / Balanced? @1 - I've never said that it doesn't. But it will remove cable noise by means of either balanced input in single ended amp or fully balanced amp. @2 - again, I did not say it removes even harmonics from the signal. It removes even harmonics produ... | |
| Dual Differential / Balanced? A single-ended amplifier with a balanced input and/or output is still a single-ended amplifier and does not offer all the advantages of a differential amplifier, which provides common mode rejection. This is not true, IMHO. Single ended ampli... | |
| Dual Differential / Balanced? Cleeds, yes, balanced operation is used in professional audio in form of balanced cables, balanced inputs etc. I’m all for it. I just don’t see how fully balanced amp can have better noise rejection than plain amp with balanced input. Instrumentat... | |
| Do supertweeters matter when we cant hear past 15,000 hz? Yes, it is. | |
| Do supertweeters matter when we cant hear past 15,000 hz? Tweeter will produce phase shift on its own without any analog filters. It is related to weight and stiffness of moving element. | |
| Dual Differential / Balanced? I don’t see benefits of that. Removal of even harmonics will make amp sound "colder" while doubled gain and power stages cost money. You can have much better unbalanced amp for the same price. |