kijanki
Responses from kijanki
| Why do digital coax cables matter? Robertsong, typical CDP used as a transport outputs digital S/Pdif signal with about 25ns edge transitions. Speed of signal in the wire depends on the dielectric but we can assume about 5ns/m. Very start of transition (knee) travels thru cable and... | |
| Amplifier Capacitance Ralph, that's very interesting. I just looked at Jeff Rowland Capri preamp - the upper limit is 350kHz but bottom is only 10Hz. It could be direct coupled with servo (integrator) in the feedback set to 10Hz. In any case, he did it for a reason. My... | |
| Watts up with that? And no, you can't remove imaginary components of an impedance curve by physicaly moving your physicaly.I'm sure I can. For instance when I rotate my incandescent bulb 90 degree counter-clockwise they become dim but when I turn them 90 degree clock... | |
| Watts up with that? Speakers are only 5% efficient, so that means the majority of the impedance is imaginary in nature and does not do work.Everybody knows that speakers play on one wall better than on another. It is because 90 degree rotation eliminates imaginary (p... | |
| This may be a dumb question... You need program that can translate formats, like (free) MAX. MAX is ripping program for OSX but it translates any format to any format as well. | |
| Amplifier Capacitance why not increase the voltage rating, to improve the longevity, ESR, and inductance characteristics instead?The price of higher voltage, low ESR, low inductance caps is perhaps too high. I checked once site that sells Hypex class D kits. Power supp... | |
| Amplifier Capacitance Bombaywalla, Yes, power supply should be clean but I was talking about modulation of power supply voltage by varying load that amplifier presents. Low frequency will definitely do it (biggest current) and high frequency will do it as well (inducta... | |
| Amplifier Capacitance Bombaywalla - Amplifiers are line regulated. It means that amplifier supplied from 40V and set to produce 5V output voltage will still produce 5V output with supply lowered to 35V or increased to 45V. There will be small error because regulation i... | |
| SSD Type Drives Better? Hevac, I have SSD in Macbook Air. It is perfect and Apple products are very reliable. The only limitation is amount of writes to each sector that is resolved by controller that shuffles the sectors to extend life. For typical use I might expire ea... | |
| Amplifier Capacitance Teaching? No, Almarg would be much better at this. He explains things with much more clarity. History was always difficult for me. | |
| WHAT TV SHOULD I GET RIGHT NOW? I have 55" Samsung UN55D8000 edge lit LED TV. It is absolutely great with very deep black levels and huge brightness/contrast. It has only 0.25" frame and is about 1" thick. You need to decide if you like Plasma or LCD/LED. They look very differen... | |
| Amplifier Capacitance Aewhistory, Time constant is amount of time it takes to bring voltage to 63.2% of desired value. For instance applying 10 volts to 1000uF capacitor thru 10ohm resistor will result in 6.32V on capacitor after time equal 10ohm x 1000uF = 10ms. Same ... | |
| Amplifier Capacitance Class AB - there is not fixed "time constant" since discharge time depends on loudness/load. We could take discharge time at max volume and compare it to reciprocal of -3dB bottom frequency of the amplifier but it wouldn't make difference to me si... | |
| SSD Type Drives Better? SSD drive is acoustically silent, might take less power, might be electrically quiet. Also your rip might be different, unless you copied it from the other drive. Drive contains data (files) with no timing, that go thru the output buffers (memory)... | |
| Amplifier Capacitance Aewhistory, Look at this chart: http://www.powerint.com/en/community/papers-circuit-ideas-puzzlers/circuit-ideas/careful-rectifier-diode-choice-simplifies-and-Top graph shows amp's supply voltage. Capacitor is charged from transformer thru rectifi... |