[Rendell]

Can the tubes in the WooAudio 3 be changed - I read about tube changing for different sound quality but some units need an update or mod. to take different tubes.

 

[some1x]

You can use any of 6DJ8, 6922, 7308, E88CC, ECC88, E188CC for the driver tubes.

6AS7 (and all its variations), 6080, 6080WB, 5998 for the power tube.

 

[HiGHFLYiN9]

IIRC Mr. Wu will make a WA3 that uses 6SN7s rather than 6922s for an extra $50. 6SN7s are usually described as having a more laid-back and rolled off top end.

Also check out Jamato's posts, he's had good luck using some unique tubes in the Woo. I never have any luck finding them tho...

 

[Capt. Z]

Hi Highfling;

I see you also have a DT 990. I do have a 20 year old modded DT 990 (600 ohm version).

How does your DT 990 work with the WooAudio 3?

Thanks

 

[jamato8]

I have tried the 6SN7's in my Woo3 and I would stick with the 6DJ8 types. The 6DJ8 types, in this application, have a more lively presentation and open airy sound. Actually I prefer the 6BZ7, which is the predecessor of the 6DJ8. It has slightly different operating points but works fine. It is inexpensive and to me, in a number of applications that I have tried it in, superior to 6922's and 6DJ8 types. You can find it in black plate and gray, both of which sound good.

The Tungsol 5998 is also a very nice power tube for this amp.

John

 

[HiGHFLYiN9]

Quote:

Originally Posted by Capt. Z Hi Highfling; I see you also have a DT 990. I do have a 20 year old modded DT 990 (600 ohm version). How does your DT 990 work with the WooAudio 3? Thanks

They sound pretty good, I'm a bit more enamored with the MS-2/WA3 combination however, but that may change with more burn in.