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kijanki

Responses from kijanki

The cost of LP's and CD's - an observation
And I remember the price of a CD being raised to $18.99. I believe Tower records initiated this with the record labels. That’s when I stopped buying new discs.I buy used CDs on Amazon and rip them to HD.  Ripping program can "renew" pretty much al... 
The cost of LP's and CD's - an observation
One thing that should be considered is longevity.  CDs backed-up on HD can last forever (can be restored), while LPs will develop over time more noise and pops (that I cannot tolerate).  Of course one can make analog tape copy or digitize LP, but ... 
*WHITE PAPER* The Sound of Music - How & Why the Speaker Cable Matters
Rule of thumb says that cable becomes transmission line (reflections from impedance boundaries) when signal propagation one way is longer than 1/8 of the fastest transition time.  When perfect square wave is applied all cables behave like transmis... 
Class D Technology
+1 noble100, I was an enthusiast of class D amplification from the start. I replaced my (medium quality) class AB amp (Cambridge A3i) with one of the first class D amps (Rowland 102) based on the one of the cheapest Icepower modules (200ASC) and w... 
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...