kijanki
Responses from kijanki
| USB cable hype There are two possibilities: You have synchronous USB DAC: Timing is controlled by the computer and is so jittery that your cable cannot possibly make any difference.You have asynchronous USB DAC: Timing is controlled by the DAC. Cable or computer... | |
| Jeff Rowland Ricred1, I found them very eager to help. Perhaps it was just the particular support person. Fortunately we have this forum to learn and share | |
| Jeff Rowland Ricred1, I stated 22% loudness increase, but it would be true for 2x loudness. I forgot that bridging doubles the output voltage, thus quadruples the power. In such case you can count on (substantial) 49% loudness increase. Speaker's minimum imped... | |
| Jeff Rowland Al is right (as usual). This amp most likely uses PASCAL S-PRO2 class D modules. Data sheet shows minimum load of 2 ohms or 4 ohms when bridged. Bridging might create problems with your speakers gaining only about 20% of loudness. Not worth trying... | |
| SACD & other Formats I've read interview with Roger Sanders. He believes that red book CD format is perfect and vinyl is inherently flawed. He quotes Nyquist etc. He forgets that Nyquist theorem applies only to continuous waves and fails short with short samples espec... | |
| Class D at low volume Tim, GNFB serves the same role in class D as it does in class AB - reduces distortions, widens bandwidth, reduces output impedance. It is not necessary for operation in general but particular circuit can be designed to depend on it.Since even shal... | |
| SACD & other Formats I have few CDs that sound incredible, showing that format limitations play small role compare to mixing. Compression is necessary for average Joe to listen on small size speakers without membranes buzzing, but in case of vinyl they know it is purc... | |
| Class D at low volume Bombaywalla, fig. 2 shows exactly how it can be done. For any input voltage corresponding duty cycle is created. Feedback would only improve performance. Modulator itself might be not 100% linear but most likely linearity error is created by the M... | |
| Class D at low volume Bombaywalla, Linear power supplies have regulation in preamps, DACs etc. but MOST of power amps are unregulated because of the amount of heat dissipated in power supply (and loss of efficiency).AFAIK older REF1000 and newer REF1000M use the same m... | |
| Class D at low volume Class D (PWM) can be easily constructed without negative feedback at all. NGF improves linearity, bandwidth and output impedance like in any other class of amplification.While global negative feedback in class A, AB is going over many stages of am... | |
| What are your favorite speaker finishes? Brazilian Rosewood (Palisander) is beautiful, but I ended up with black piano finish speakers (similar to Wilson Puppy) that I hated with passion. My wife even mentioned that they resemble small coffins. Now they are growing on me and I think I ev... | |
| Clean those conduit boxes. That's easy to understand clean boxes = clean sound. My speakers sound much cleaner after dusting too. I have good highs on second floor but better lows in the basement and more "air" when playing outside. | |
| Best External Drive To Rip A Lot Of CD's with? It depends how you do it. I ripped only CDs that I wanted to listen to. I could listen to music within a minute and rip at the same time. It is not a "chore". | |
| Thoughts on the Signal Path Sabai, preamp often helps with impedance matching, but it is also a matter of personal preference. How do you define sound quality? Is it transparency? That wouldn't be improved by adding additional elements in the chain. I see sound quality as a ... | |
| Class D at low volume I cannot speak of very high power class D, but my Rowland 102 producing 150W with my 6 ohm speakers is wonderful at low volume. In spite of hearing curve I don't feel any lack of lows or highs, resolution is there and image is even better than one... |