kijanki
Responses from kijanki
| Directional speaker cables - switching direction Many believe that direction should not matter since we're dealing with AC current (charge flows in both directions). It might be a little bit more complicated than that, since energy is delivered only in one direction by the electromagnetic field ... | |
| Bi-Wire Tuning Jeff, Belden 5000UP is a stranded bare copper cable - the worse to use in my opinion. According to Audioquest thick cables produce skin effect that changes impedance of the cable with frequency. Skin effect starts at gauge 18 (@20kHz). In stranded... | |
| minimizing glare on TV screen Mark, I have 55" Samsung LED with very shinny screen. I don't see a lot of reflections during day because it is facing wall without window while brightness automatically adjusts itself to much higher levels during day (Samsung calls this "ECO"). A... | |
| Does the Transport make a significant difference It can make it better because of better mechanical design. quieter power supply and better output stage, but it can make it worse if output slew rate is high (short transitions) and your coax or DAC is not perfectly matched. It is a system thing. | |
| The first watts After transition from class A (both transistors conducting) to class B (only one transistor conducting at given moment) it is already linear and class name doesn't make any difference. Actually, increasing bias point to keep it longer in class A w... | |
| Do I really need a preamp? "It depends" is the best answer because it involves a lot of factors including personal preference. Mentioned class D amps are in big part based on modules that have low input impedance (for many Icepower modules it is 10k). My class D power amp h... | |
| Frequency range s of digital noise s Any cable can pick-up electrical noise including speaker cable. Shielding is based on skin effect and does not work for lower frequencies. The key is to keep cables as short as possible, since they become effective receiving antenna at about 1/10 ... | |
| Frequency range s of digital noise s Pss, personal computer clocks might be in gigahertz range but computers also contain switching power supplies that operate in hundreds of kilohertz range and buses operating in hundreds of megahertz. In addition when signal is not continuous, but ... | |
| Frequency range s of digital noise s Pretty much whole spectrum. Very high frequency can get in and produce audible frequencies by mixing on any non-linear element or by "rectification" in components, such like op-amps, that have different slew rate for positive and negative transiti... | |
| The Plasmatron - more linear output voltage Negative differential resistance would be the better term, since it has to have some resistance in order to produce negative resistance change. Fluorescent tubes are also a negative resistance devices. I cannot see how this device would help with ... | |
| Will the sound quality deminish over the years? I'm not sure about tweeters in my Hyperions HPS-938 but midrange uses ferrofluid for suspension. Ferrofluid dries over time and has to be replaced but I don't know if it is 10-20 or 30-40 years. Also, some speakers have electrolytic caps in xover ... | |
| Grounding Concrete is poor conductor, especially when it is dry. | |
| Best cables to utilize Dac in Hegel 80 It is hard to answer since it is always a system thing. Coax should be better but is sensitive to ambient noise and affected by transmission line effects (reflections in the cable). Toslink is immune to ambient noise and reflections but might suff... | |
| My wife passed yesterday Chayro, I'm very sorry for your loss. | |
| Sweet spot in the AudioQuest line of cables King Cobra was very neutral sounding in my system. It used to be more expensive under name "Python" until AQ moved production to China, renamed cables and lowered prices to stay competitive. My current ICs Acoustic Zen Absolute are little more ref... |