kijanki
Responses from kijanki
| Class D amplifiers have very little phase shift @erik_squires Thank you. As for the phase shift, datasheet for the modules in my previous class D amp (Icepower 200ASC) show about 18-30deg phase shift at 20kHz dependent on the impedance of the speaker. Every amplifier has some phase shift at 20k... | |
| Future of cables! It is interesting article, but I'm not sure how it applies to audio cables. Electric current is a flow of electric charge. For AC signals electrons practically stand in place while electric charge moves at about 2/3 of the speed of light. Energ... | |
| Class D amplifiers have very little phase shift Shown values don't make any sense. 10uF would represent about 0.8 ohm capacitive reactance at 20kHz, while series resonance of 1mH and 10uF would be at 1.5kHz | |
| Some amps I never heard of... I have Benchmark AHB2. It is powerful, dynamic and very clean with great treble and bass extensions. It has only XLR input, since Benchmark believes that S/N at this level (132dB) is wasted with single ended RCA connection. Also, it is extremel... | |
| Benchmark DAC-1 I had Benchmark DAC1 for many years. I replaced it with DAC3 HGC that I have for more than 2 years. It sounds fuller and cleaner, at the same time. It has better treble extension while harshness is gone. It also has better bass extension. By "full... | |
| What's wrong with variable bias? lostrak, In class A both output transistors operate all the time. Current thru one transistor is equal bias current plus half of the load current, while current thru other transistor is equal bias current minus half of the load current. Because of... | |
| Using a short coax cable? due to how the impedance of the liquid metal alloy occurs, in the moment or in situ, the liquid metal has the least issues of any cable type, re the shaping of the edges of a square wave. atomic and quantum function of the impedance actually occur... | |
| Using a short coax cable? labguy, Idea of min 1.5m cable comes from assumption that transition of digital signal is in order of 25ns. In ideal case DAC has exactly the same characteristic impedance as cable, but in reality there might be slight mismatch causing reflection... | |
| Amperage 2 vs 4 channels amplifier We have 2 amplifier from one manufacturers.Amp 1 - 4 channels, 125 Watt, Maximum Current: 60 Amperes peak per channel.Amp 2 - 2 channels, 125 Watt, Maximum Current: 100 Amperes peak per channel.If we connect these amplifiers to identical speakers,... | |
| USB noise filter, jitterbug or ifi recluse, jitter can be introduced with USB interface two ways - direct or indirect. Direct happens when DAC uses average computer data rate as a source for D/A conversion rate (synchronous USB). With asynchronous interface D/A clock and incoming... | |
| Jazz Vocalist - If you like Roberta Donnay you might like .... ?? Shirley Horn (try "You Won't Forget Me) | |
| Effect of coiling power cords? When you wind power cable on toroidal ferrite you create common mode choke, that exhibits inductance for common mode signals (electrical noise current induced in both wires) and no inductance for normal mode signals (currents in opposite direction... | |
| Diminishing Returns rvpiano, There is more fun in chasing the bunny than in catching it, but I'm happy that you're happy. I also came to a point, where I cannot improve my system anymore (some hearing loss), but I will stay and participate from time to time. | |
| Is this a problem? Most likely it is white RTV silicon adhesive, used to prevent larger components from vibration. | |
| Cognitive Dissonance without the Stress--Digital & Analog At Home I am binary, I guess, since I dropped vinyl long time ago, mostly for practicality of digital. Selection of music is much wider and much cheaper. I can buy used CDs and rip them to hard drive, as well as copy my friends CDs to Audio CD-R and th... |