kijanki
Responses from kijanki
| Blindfold Speaker testing Long time ago my brother auditioned speakers in audio store. Salesman stated that first speaker is so good, that basically there is no need for anything else and it sounded good indeed. Then he presented more expensive one just in case "if my brot... | |
| Is usb reclocking necessary? @yage Thanks. In that case I cannot see any reason even for filtering. | |
| Is usb reclocking necessary? When DAC is self powered, then USB power is not necessary but GND connection is still required since single ended (GND referenced) signaling is used at the start. It might be possible to lift the GND after music started playing as long as data co... | |
| Is usb reclocking necessary? With Asynchronous DAC like Ayre QB9 data is not delivered in real time*. Asynchronous means that USB clock and DAC’s D/A conversion clock are independent (asynchronous). Reclocking Asynchronous USB doesn’t make any sense. On the other hand "Recloc... | |
| What should I use to convert FLAC files to AIFF? @sc0ttc00ter I recently started using https://www.freac.org/ for batch-converting to AAC format (for the car), but it converts anything to anything and I like always free programs (continuous builds). I still use XLD for ripping CDs. | |
| How to fix my preamp dilemma Loud humming transformer might be a sign of fried rectifier diode - inexpensive repair. I wouldn't turn it on to avoid further damage. | |
| Why did you choose the components and speakers that are in your system? Furman 20 PFI - protection + clean power without loss of dynamicsAirport Express - to transfer data only (computer not important)Benchmark DAC3 HGC - to make 280ps of AE jitter inaudible.Benchmark AHB2 - very clean and very dynamic.Hyperion HPS-93... | |
| Does the 1.5m 75ohm rule apply to 110ohm? @mesch Input impedance of receiving component has nothing to do with it. We assume 1.5m minimum for average system. In some systems 0.5m might be enough, while others will require 2m. The whole point was that longer cable might be better (cou... | |
| Does the 1.5m 75ohm rule apply to 110ohm? As for speeding the edges - it should reduce noise induced jitter since noise with vertical crossing of the threshold point will affect exact moment of level recognition less. Slow transitions are the weakness of Toslink, making it susceptible t... | |
| Does the 1.5m 75ohm rule apply to 110ohm? sugaboogerReflection starts from the beginning of transition (first knee). Assuming 5ns/m it will take about 7.5ns to travel to the end of the 1.5m cable, reflect and another 7.5ns to come back - total of 15ns. It will miss 12.5ns midpoint of 25... | |
| Does the 1.5m 75ohm rule apply to 110ohm? 1.5m rule is based on transition and propagation times. Reflection from RCA connector might be stronger, but there will be reflection on any impedance boundary, unless DAC’s digital input impedance is perfectly match to cable’s characteristic impe... | |
| Best Digital Interface Is there a Coax to USB adapter available? Does this make sense? The beauty of async USB interface is that by desynchronizing clocks it allows DAC to operate at its own independent stable clock. It does it by signaling back to computer to increase... | |
| The Placebo Effect If placebo effect exist in audio, then it works both ways. If you strongly believe that cables have no effect on sound then you won't hear the difference in double blind testing - negative placebo effect. | |
| Why do we want to distortions? Tube amps tend to produce less unpleaseant-sounding higher-order odd harmonics than solid state and potentially more even lower-order harmonics which are pleasing to the ear.Piano overtones are stretched over harmonics and beat with them. On over... | |
| Samsung flat screen TV’s The answer is to get your TV professionally calibrated after you buy it. That way the TV does not have to struggle to produce a great picture.That's true, but you can also find calibration settings on internet. There is not so much variation from... |