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Woo Audio Amp Owner Unite - Page 2276

post #34126 of 34128
Quote:
Originally Posted by magiccabbage View Post
 

does anyone know if the Woo audio transport can play hi res cds.?? like HD tracks cds?


Best person to answer that is Fririce0003 he has one.

post #34127 of 34128
Quote:
Originally Posted by magiccabbage View Post

does anyone know if the Woo audio transport can play hi res cds.?? like HD tracks cds?

What is an HD Tracks cd? Flac files downloaded from them burned to disc?
post #34128 of 34128
Quote:
Originally Posted by Stereolab42 View Post
 

I need to understand better exactly what the high and low impedance jacks do on a Woo amp. Is it correct to say that the only technical difference is that each jack is tapped from a different spot in the secondary windings of the output transformers? Which means that the high jack will deliver a higher voltage but with a lower maximum current? This explains why the high jack produces the same volume at a lower setting on the volume knob than the low jack. Now assuming I have headphones I can drive to my preferred volume perfectly well on either jack, is there any technical reason why there would be a SQ difference?

 

Let me partially answer that... I assume output impedance (http://nwavguy.blogspot.com/2011/02/headphone-amp-impedance.html) as presented to the headphones is also changed by where you take the tap? While output impedance supposedly has big effect on freq response for dynamic drivers, it doesn't affect planar drivers, right?

All that you have mentioned is correct. 

 

1) Selected impedance is looking at the secondary winding of the output transformer with the the matched signal path load resistor in the circuit design.

 

2) Dynamic driver has a coil in the diaphram and the coil driver become part of inductive LC network which act as a tank circuit that is constantly pulsing as a frequency generator which requires the right load impedance to produce and not over current the circuit. That is why it is important to match the right load constant or gain.

 

Planar mechanically resonant the frequency across the entire ribbon very fast and does not pulse. This why you hear people say in theory the Planar is quick thru the music passage. Same principal with a Electrostat ribbon.  


Edited by Audiogalore - Today at 3:44 pm
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