kijanki
Responses from kijanki
| Class D Technology Again, switching noise is inaudible, unless anybody can hear 500kHz. Even bats won't hear it. I'm not sure why is it so difficult to understand. I addition tweeter's membrane won't move at all. Personally, I have problem hearing 20kHz. As for... | |
| Class D Technology Mapman, high frequencies are different for sure, but not for the worse. Cymbals, for instance, sound more "brassy" and less "splashy". To me it sounds more natural, but it might create false impression of limited extension. | |
| Class D Technology George , I did put my ear to the tweeter and I can hear almost complete silence - much better than class AB amp I had before. I'm not surprised since tweeter membrane has no chance to move at 500kHz.Modern SMPS are much quieter than linear power ... | |
| Class D Technology George, I looked at the link you provided. Yes they use filters for the purpose of measurements to eliminate residue of switching frequency that is otherwise completely benign. This small residue (about 1%) has no effect on the sound. Speaker me... | |
| Class D Technology Non-linear & lots of distortion that needs to be cleaned up with an output filter. I don't understand what you mean by that. Class D is extremely linear. Class D modulator, converting voltage to duty cycle, resembles Delta-Sigma D/A conve... | |
| Amplifier heat...help! 130deg F is 30deg C increase above ambient temperature. Life of electrolytic caps is reduced 2x for each 10degC increase. In that case it will be 2x2x2=8 times. It will reduce 8x life of all capacitors in this cabinet. Sliding tray or fan or ... | |
| Best sounding transistors What is NOS? (It usually means "New Old Stock" when you buy transistors on ebay, but I'm sure Nelson Pass doesn't do it) | |
| The effect 60Hz Cycles on 50Hz SACD-PLayers Transformer might be slightly more efficient at 60Hz but it doesn't make much difference when power is low (SACD etc.). Filtering after rectification will leave a little more ripple but it might be inaudible. Motor might be a "Step Motor" being... | |
| storage options for MacBook Air Scar972, Ignore my argument about longevity of SSD. Music library doesn't add any burden since it is always read operation during playback. | |
| storage options for MacBook Air Scar972, It can make a difference if your external (mechanical) storage is acoustically noisy. Other than that your DAC has asynchronous (I believe) input, meaning that timing of the computer and DAC are separated. What you send to DAC is data -... | |
| Why has amplifier power become a big issue Power specification is very vague. Average music power is only a few percent of the peak power. Headroom of the amplifier is very important but most of the time not even specified. I also enjoy my class D amp, especially at lower volume. It d... | |
| What are you using for ripping CDs? What media player do you use? I use XLD on the Mac. I still use Itunes for playback. It is not bad when you use networking (async USB, WiFi, Ethernet). I created playlists for each genre ("When Genre contains Jazz" - for instance). It makes it much easier to use - all icon... | |
| DACs that upsample to DSD internally? Eric, he was asking for the DAC that converts PCM to DSD. Every Delta-Sigma D/A converter does that, unless he is looking for the DAC that brings DSD stream to the output connector.Delta- Sigma might be oversampling but it is not Asynchronous Samp... | |
| DACs that upsample to DSD internally? xrayz, I'm still confused. Do you need your DAC to output DSD stream to the outside (DSD stream on output connector) or you're looking for the DAC that outputs analog voltage that comes from PCM-DSD conversion. As I mentioned before all Delta-Si... | |
| Direct Digital Amplification It is a little strange that M32 converts analog input signals to digital to convert again from digital to analog at the speaker terminals, while in plain class D amplifiers signal never leaves analog domain. |