[isquirrel]

  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.

 

[daverich4]

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?

 

[Audiogalore]

  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 grid like tuning fork very fast and does not pulse. This is why you hear people say in theory the Planar is quick thru the music passage. Same principal with a Electrostat ribbon.  

 

[3083joe]

After several weeks on listen I have to say the brimar 5z4 is one of the best rectifiers out there to my ears. Love it. U52 brimar is next.

 

[devilboy]

After several weeks on listen I have to say the brimar 5z4 is one of the best rectifiers out there to my ears. Love it. U52 brimar is next.

How available and what am i looking at regarding cost? Roughly.

 

[3083joe]

How available and what am i looking at regarding cost? Roughly.

$45 or so
http://pages.ebay.com/link/?nav=item.view&alt=web&id=331561896621&globalID=EBAY-US
U52 is way higher. Like 200ish

 

[devilboy]

Thanks.
I'm currently running a pair of Mullard EZ80 in my WA2 . I'm new to tube rolling my Woo so I don't want to sound too dumb here but, how much of an improvement would I get going to that brimar (if any)? In your experience.

 

[Fririce0003]

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

Bit of a late reply, been flat out with work lately. But the WTP is limited to standard redbook cd's. Nice, full and musical with them though

 

[MIKELAP]

 

After several weeks on listen I have to say the brimar 5z4 is one of the best rectifiers out there to my ears. Love it. U52 brimar is next.

How available and what am i looking at regarding cost? Roughly.

                                                                                                                                                                                 http://www.langrex.co.uk/common-valves.html
Langrex has those also for around $29.00 U.S.                             

 

[abvolt]

I've got 4 of those really nice sounding tubes for the price..

 

[3083joe]

                                                                                                                                                                                 http://www.langrex.co.uk/common-valves.html

Langrex has those also for around $29.00 U.S.                             

Very nice.
Think I do like the black base regular 5z4g (no y) a little better tho

 

[abvolt]

There are differences ? guess I'd better check one of those out..

 

[MIKELAP]

 

                                                                                                                                                                                 http://www.langrex.co.uk/common-valves.html

Langrex has those also for around $29.00 U.S.                             

Very nice.
Think I do like the black base regular 5z4g (no y) a little better tho

They had black base also just ask. but yours are different maybe older                                                                                                                                           

 

[ru4music]

Thanks.
I'm currently running a pair of Mullard EZ80 in my WA2 . I'm new to tube rolling my Woo so I don't want to sound too dumb here but, how much of an improvement would I get going to that brimar (if any)? In your experience.

EZ80 tube sonic comparison (mid way down the page) from lukaskite:
 
http://www.head-fi.org/t/402215/the-woo-audio-2/510

 

[Badas]

Brimar 5Z4GY

I have tried brown and black base. Grey and black plates. They all sounded the same to my ears.

I ended up just stocking up on the brown base. I like its looks a little better.

My Woo got a buddy yesterday. I added a TT to the system. Fun.

I can't wait for the old school TT and tubes session.