kijanki
Responses from kijanki
| Hybrid SACDs or CDs for Redbook Playback I've read some Stereophile reviews of early SACD players. SACD sound was fantastic while rebook was not so good. Perhaps player is optimized for SACD playback. Processing for SACD and CD is completely different (different DACs). | |
| Re-capping A 15 Year Old Solid State Amp AFAIK only electrolytic caps and possibly switches if you have problems with them. Everything else should last your lifetime. Old dry caps have high ESR (Equivalent Series Resistance) increasing output impedance of the amp. It will take away some ... | |
| Suggested PC laptop models for computer audio Knownothing, Placing different peripherals on the same USB bus affect timinig. Since timing is removed in asynchronous USB scheme it should not make any difference. | |
| Suggested PC laptop models for computer audio Knownothing, In asynchronous USB computer downloads "frames" of data every 1ms into DAC's buffer. DAC sends back buffer under/overflow signal to reduce or increase size of next frame. That way no data is lost. Next, DAC takes words from the buffer... | |
| Suggested PC laptop models for computer audio Are you going to use USB? If so, then speed of computer, type of hard drive, amount of memory etc. are unimportant. It is because asynchronous USB strips timing from the signal and new timing is recreated inside of the DAC. Amount of electrical no... | |
| Tube Watts vs. Solid State Watts - Any credence? 85W vs 70W 5.7% loudness increase45W vs 40W 3.4% loudness increase | |
| Tube Watts vs. Solid State Watts - Any credence? Large headroom doesn't mean poor performance. It means that amp has ability to output higher momentary peaks. Otherwise it is power limited by power supply and/or heatsinks. That's what music is - peaks, gaps and very low average power (few percen... | |
| Safety of Older Electronics Dry power supply caps have high ESR (Equivalent Series Resistance). First symptom is loss of bass tightness/dynamics. I've seen (in commercial equipment) cap that was bulging (placed next to hot transformer). | |
| Safety of Older Electronics O_holter, romm temperature is around 20degC. It is hard to tell what is lifespan of the cap since different companies put different numbers. I would assume >50 years in 20degC. Capacitor will fail only if you leave it unpowered for many years. ... | |
| Tube Watts vs. Solid State Watts - Any credence? I believe Atmasphere mentioned once particular B&W speakers consisting of lower efficiency 4 ohm bass speakers with higher efficiency 8 ohm midrange and tweeter. Speaker has great bass when amplifier doubles current on 4 ohm speaker, but not s... | |
| Recent sound deterioration shrillness, ringing I'm not sure about newer Icepower but older modules, including one in my Rowland 102, have this problem. It is because of usage of single supply while reversing direction of the speaker using 4 Mosfet (switches) bridge. That way, half of supply vo... | |
| Tube Watts vs. Solid State Watts - Any credence? Music requires very little average power, unless one listens to sine waves. It is possible that two of 50W amplifiers can be designed with very different headrooms. One might have small headroom being, for instance class A amp while the oder has h... | |
| Safety of Older Electronics Yes, filter caps go bad when gear is not used for a very long time because electrolyte "eats" out aluminium oxide, a dielectric, reducing breakdown voltage (presence of voltage slowly rebuilds it), but filter caps can also go bad because they simp... | |
| DAC drops out when Furnace starts or stops. HELP Length of the cable might or might not add to the problem.Longer cable allows to avoid first reflection adding/modifying shape of original transition (many factors involved). You GH cable might work better because of length or because of better ch... | |
| Tube Watts vs. Solid State Watts - Any credence? The difference in perceived loudness between 70W and 140W amplifier is only 22%. Tube amps, when overdriven tend to produce "soft clipping" (softer/gradual overdive transition), while SS amp just chops off the peaks producing a lot of unpleasant s... |