[Clive101]

Nice, what rectifier and adaptor are you using?

The rectifier is a USAF 569 with a Woo adaptor, hand picked by Jack at Woo, had a demo at London CamJam at the weekend and could not resist joining the Woo Club.

Any one else in the UK with a Woo WA33...?


Edit USAF 596

 

[JLoud]

I ran the 596 in my WA6se. Very fast sounding rectifier. At least that was my impression.

 

[JLoud]

Assuming you meant 596. Haven’t seen a 569 but my knowledge of tubes is not that extensive.

 

[Clive101]

Assuming you meant 596. Haven’t seen a 569 but my knowledge of tubes is not that extensive.

It seems my knowledge is even less... ..it is. I had to look up the number and then the typo....between you and me, my knowledge is zero, all I know they get very hot....
But glad I have tiptoed into the tube world

 

[JLoud]

Clive101 have you had a chance to compare your WA33 to the WA5? I really like my 5 but that 33 is drop dead sexy. Haven’t had a chance to hear one yet.

 

[Clive101]

Clive101 have you had a chance to compare your WA33 to the WA5? I really like my 5 but that 33 is drop dead sexy. Haven’t had a chance to hear one yet.

No, but I did compare with the Aries Cerat Genus.
Later next week I will be able to do a Dave-Msacler comparison. It was not too long ago when I had the demo of the Genus so not a direct A B but it may be of interest.
I must admit looking at this Amp with the USAF 596 does look the part....and at night the glow from those tubes...!

 

[isquirrel]

Hello All....
I have joined the club.

Is that a WA33 Elite?

 

[Clive101]

Is that a WA33 Elite?

Sadly no, but perhaps next year...

 

[ahossam]

I'm planning to get EML 300B tube for WA5 LE, but can't decide which one to get the 300B, 300B Mesh or 300B XLS.

Any help would be appreciated, thanks.

 

[JLoud]

I believe the XLS is for high output. Not really needed on the WA5 LE. I went with the 300B, not mesh. It was described as having a more focused soundstage. The mesh supposedly has a bigger soundstage. At least that was how the distributor described it. Very happy with to regular 300B.

 

[Gibson59]

Posted in the WA22 thread but thought I might get more eyes here... is it common to have slight audible hum from a 2nd gen WA22? I’m using my HEKse and running single ended from my Chord Qutest. I’ve ruled out grounding issues and tried very tube combination I’ve got (which is a lot). Different tubes don’t seem to make a difference.

Just got it back from Woo warranty repair and I’m still getting some hum. Otherwise they’ve been great to work with. Thought I’d ask around here before going back to them again.

 

[JLoud]

How is your incoming power? I live in an older neighborhood and had some issues with hum on my WA5le. Incoming power wasn’t very clean. Also appliances in the home were causing an issue. Added a PS audio Dectet and that helped. But in high gain I still have slight hum on efficient headphones. Nothing on my LCD4 or Abyss. But my HD800S and Sony Z1R has a small amount. Only noticeable when music isn’t playing.

 

[Cho Worsh]

Posted in the WA22 thread but thought I might get more eyes here... is it common to have slight audible hum from a 2nd gen WA22? I’m using my HEKse and running single ended from my Chord Qutest. I’ve ruled out grounding issues and tried very tube combination I’ve got (which is a lot). Different tubes don’t seem to make a difference.

Just got it back from Woo warranty repair and I’m still getting some hum. Otherwise they’ve been great to work with. Thought I’d ask around here before going back to them again.

REVISED 10-28-19

Suggestion: Try this low cost device between your source and the Woo.
Boss Audio b25 N Ground Loop Isolator Noise Filter (around $18)

See if the hum is removed or goes down to next to nothing with Boss filter connected. If the hum is completely eliminated or mostly goes away, you have a ground loop. If so, return the Boss and buy the better sounding Jensen CI-2RR ISO-MAX isolation transformer or trouble shoot your AC hookups to try and isolate the source of the ground loop.

The EbTech Hum-X may also remove the hum if attached to the power cord of the Woo amp.

 

[nishan99]

What's the power output specs of the WA2?
can't find it on their page.

 

[HiFiGuy528]

What's the power output specs of the WA2?
can't find it on their page.

WA2 is OTL design, best paired with high impedance headphones above 150 Ohms. WA22 is a more modern design suitable for today’s headphones.