Woo Audio Amp Owner Unite
Nov 1, 2017 at 2:09 AM Post #39,841 of 42,299
I have Woo WA5-LE Gen 2 and it is my preferred amp with my Utopia’s. For rectifiers I like EML 5U4G’s or United 596’s (you’ll need adapters) for drivers I like Tung Sol round plates, 6SN7’s or the same in 6F8G with adapters for power I like EML or KR 300b tubes these are the best configuration after many less satisfactory experiments.

Aah I wish I could a pair of Tung Sol BGRP 6SN7 or 6F8G somewhere. I have the 12SN7 version for my Liquid Glass but WA5 does not accept 12SN7 :frowning2:
 
Nov 1, 2017 at 7:07 AM Post #39,842 of 42,299
Aah I wish I could a pair of Tung Sol BGRP 6SN7 or 6F8G somewhere. I have the 12SN7 version for my Liquid Glass but WA5 does not accept 12SN7 :frowning2:

I takes some patience to assemble the best tubes and unfortunately a lot more money. Lately, I've noticed that there are fewer and fewer sales of some of the best tubes. I have back up's of all of my favourites and they go nowhere.
 
Nov 1, 2017 at 3:26 PM Post #39,845 of 42,299
I'm a complete noob when it comes to Woo Audio equipment. So I have a naive question about WA2. What are those 3 rectangular cubes in the rear of amp? Amps with this configuration are all transformer coupled (2 input transformer and 1 output transformer). But WA2 is an OTL amp, so what are in those boxes?

wa2-7.jpg
 
Nov 1, 2017 at 8:24 PM Post #39,847 of 42,299
I'm a complete noob when it comes to Woo Audio equipment. So I have a naive question about WA2. What are those 3 rectangular cubes in the rear of amp? Amps with this configuration are all transformer coupled (2 input transformer and 1 output transformer). But WA2 is an OTL amp, so what are in those boxes?

my guess the middle one is the power supply transformer, while the 2 side smaller ones are the filter choke for the power supply.
 
Nov 2, 2017 at 11:33 PM Post #39,848 of 42,299
I own a WA22 and a Sony HAPZ1ES, which sports both balanced and single ended outputs. IThe WA22 sounds noticeably better on the balanced inputs, and slight better using balanced HP outputs.

I also have a Gen I WA5 with Max upgrade (vCaps and Black gates). It sounds absolutely fantastic, and has the benefit of powering a set of efficient speakers.
 
Nov 2, 2017 at 11:35 PM Post #39,849 of 42,299
What speakers do you drive with with your WA5?
 
Nov 6, 2017 at 7:30 PM Post #39,850 of 42,299
I really enjoy the Tung Sol Black Glass Round Plates 6SN7GT. Has anyone tried the 6F8G or 6C8G versions of the Black Glass Round plates on the WA5? If yes, how do they compare to the 6SN7GT?
 
Nov 6, 2017 at 8:15 PM Post #39,851 of 42,299
I really enjoy the Tung Sol Black Glass Round Plates 6SN7GT. Has anyone tried the 6F8G or 6C8G versions of the Black Glass Round plates on the WA5? If yes, how do they compare to the 6SN7GT?

The TSRP 6F8G is my favorite for the WA5. I don't have experience with the TSRP 6SN7 to compare. But between the 6SN7s I did try vs any 6F8Gs I generally preferred the 6F8G. My #2 would go to National Union 6C8G (I tried 6F8G and they ended up being noisy but the 6C8Gs ran great).
 
Nov 6, 2017 at 9:23 PM Post #39,853 of 42,299
Help me out with the WA5. Which tube requires replacement over stock? All? Some?

The stock tubes are pretty coarse at best. There are a lot of opinions on great tubes. I like EML and KR 300B Power and EML 5U4G Rectifiers and Tung Sol 6SN7's or 6F8G Tung Sols (my fav) with adapters. You are only limited by your wallet here. There are diminishing returns at the ridiculous end though.
 
Nov 6, 2017 at 9:25 PM Post #39,854 of 42,299
I know that the EC Zana only needs a single tube replacement. I was just wondering for the WA5.

So you replaced 4 tubes outta the 6? Also, give me an estimated price for all the tube upgrades your WA5 is on now.
 
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