kijanki
Responses from kijanki
| Excess speaker wire Coiling shouldn't have any effect, since it is cable and not a wire. Coiling single wire increases inductance, but coiling wire and return doesn't - because both wires in cable create canceling magnetic fluxes (opposite direction of the current).... | |
| Difference between 75 and 110 ohm digital cables? 75 or 110ohm is characteristic impedance of the cable. It should match output impedance of the transport and input impedance of the DAC. In audio most of the time single ended connection with RCA or BNC connector is specified at 75ohm while diff... | |
| The conclusion I've reached about speakers You have to remember that the same audiophiles that think they hear a difference in speakers are the same people that think they hear differences in cables. Audiophiles have very poor credentials when it comes to judging sound quality. Why not to... | |
| Power Conditioner I have Furman Elite 20PFI and like it very much. I bought it used for about $650. It has very tight non-sacrificial over/under voltage protection and I believe that it filters HF noise well. My previous amp had plain unregulated power supply an... | |
| The conclusion I've reached about speakers One man answered an add for the piano teacher."Sir, what are your credentials?""I don't have any. I don't know music and I don't play piano""Why, on earth, are you calling?""I'm calling to tell you that you should not count on me"That's exactly h... | |
| Power Conditioning / Surge Protection Charging pulse starts at the bottom of the ripple and ends at the peak of the waveform. When ripple is larger this time gets longer. When you comprehend this we can go forward.Amount of ripple depends on capacitance and load current and does not... | |
| Power Conditioning / Surge Protection I'm just tired of arguing, especially most of people don't follow the subject. I also don't understand some of your statements. Capacitor is charged only from the bottom of the ripple to next peak. Bigger ripple means longer charging time - ALW... | |
| Power Conditioning / Surge Protection We agree to disagree. | |
| Toslink Any possible difference in sound between Toslink cables is in amount of jitter they produce. Output LED diodes are slow. Transitions in Toslink are about 10x slower in comparison to coax. On the receiving end of the Toslink weaker light will re... | |
| Power Conditioning / Surge Protection Audio2design I did not say that ripple current gets higher. You argued that voltage on capacitor doesn't drop because charge time is higher. I only stated that when charge time gets higher - ripple is higher (capacitor is charged from the botto... | |
| Power Conditioning / Surge Protection Unless the amp is voltage clipping you have not made a good argument for true loss of dynamics though the loss would not be much different than line voltage variation. That resistance limits the peak current but extends the charge time so I your 1... | |
| Power Conditioning / Surge Protection Why do you keep talking about noise and voltage spikes?The problem is in narrow current spikes (pulses) charging capacitors that increase power losses on any impedance in series.During orchestra forte voltage on power supply caps drops. It is bec... | |
| Power Conditioning / Surge Protection Capacitors charge in narrow current spikes, but they cannot charge to the same full voltage when there is voltage drop on impedance in series.Perhaps spikes would be 1/12 less since we drop 10V of 120V. It doesn't change anything.I did not say m... | |
| Power Conditioning / Surge Protection audio2design, Let's assume that amp draws from mains 1A during music peaks. It will likely be drawn in spikes of amplitude reaching 10A. If filtering coil has 1 ohm resistance it will cause voltage drop of 10V equivalent to 20% of max power loss... | |
| Power Conditioning / Surge Protection You want to protect and to filter. The problem is that filtering places resistance in series that causes big voltage drops and kills dynamics. Most of power supplies take current from mains in short spike of huge amplitude (about 10 fold of aver... |