kijanki
Responses from kijanki
| 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... | |
| Digital Amplifier Questions RF leak thru power cord depends on the type of power supply. Rowland's supplies have zero current switching and power factor correction presenting load similar to resistive. No narrow current pulses. Ref1000m, a second generation uses also power f... | |
| Impedance mis-match? Perhaps sales people should ask somebody before offering written explanation. | |
| Impedance mis-match? I would use 75 ohm cable, since reflection from the other end is possibly worse, as Al stated, but also because output RCA connector is not likely 75 ohm anyway. I would use very short cable - as short as possible. Wire becomes transmission line w... | |
| Agree or disagree with the following statement. Al, absolutely agree but I would even question power specifications. Assuming that they follow any standard (like FCC power) it is only useful if one listens to sinewaves. Average music power is only few percent of maximum power. It is possible th... | |
| Importance of recapping a SS amp? Gear unused for a long time (years) need reconditioning - applying lower voltage (perhaps 50%) and increasing it slowly over day or two. It is because without the voltage electrolyte eats dielectric layer (aluminum oxide) reducing breakdown voltag... | |
| Help with speaker cable under $500 for new system Al, I agree but since source/speaker resistive impedance is likely at least 50% of nominal impedance (perhaps 2/3?) making best overall DF you can achieve equal 2. I would avoid using anything that can lower it further but additional 0.5 ohm would... | |
| Help with speaker cable under $500 for new system Al, 23 gauge copper is not that different (0.489 ohms). Damping factor of 14 is OK since, as I mentioned, speaker itself limits it to <2. Atmasphere amplifiers have DF<1 and are highly praised.I'm not sure how significant difference in color... | |
| Shipping Heavy Speakers: Freight of FedEx I had my speakers shipped "on the pallet" but they arrived damaged without a pallet. I would do what Peter suggested - wrap/strap them together making package to heavy to move without a pallet. | |
| Help with speaker cable under $500 for new system I would not worry about lower DF. Inductor in series with the woofer has resistance in order of 0.1 ohm limiting DF to 80 anyway, not to mention that speaker's own impedance is mostly resistive. Even 4 ohms would make DF=2. Additional resistance i... |