Woo Audio WA6 + WA6SE: Tubes, Comments, Pictures, and Advice
Feb 8, 2023 at 9:14 PM Post #4,576 of 4,871
Feb 10, 2023 at 8:21 PM Post #4,577 of 4,871
In case anyone is thinking of becoming a member of the BEST Woo Crew, the time has come for me to move on my Woo Audio WA6-SE Gen 2 "Wonder Twins" with their matching Musician Pegasus R2R DAC's. If anyone is interested, please PM me for details.

https://www.head-fi.org/classifieds/woo-audio-wa6-se-gen-2-and-musician-pegasus-w-upgrades.41345/
After the sale, are you still going to come to this thread?

Got my WA6-SE GEN 2 back. Woo replaced one capacitor and one resistor which were brought down after one of the 13DR7 burned out. In terms of driver tube rolling, my vote goes to
  1. 13DR7 (Sylvania), fuller, good balance of transparency, dynamic, and bass.
  2. 13DE7 (yellow print Sylvania), neutral but a little bit soft
  3. 13EM7, too bright to my taste
 
Feb 10, 2023 at 9:29 PM Post #4,578 of 4,871
After the sale, are you still going to come to this thread?

Got my WA6-SE GEN 2 back. Woo replaced one capacitor and one resistor which were brought down after one of the 13DR7 burned out. In terms of driver tube rolling, my vote goes to
  1. 13DR7 (Sylvania), fuller, good balance of transparency, dynamic, and bass.
  2. 13DE7 (yellow print Sylvania), neutral but a little bit soft
  3. 13EM7, too bright to my taste
Oh, of course! I still love the WA6-SE's and consider them my babies! If it wasn't for the need for space, I'd keep them. I may keep them anyway and just box them up for now and put them in storage. I just figured I'd pass them along to someone looking to get into the tube sound and R2R DACs.

I actually never messed much with the 13DE7's aside from stock - I immediately gravitated to the 13EM7's. I know @Basco (I think) has some Hitachi 13DE7s that he likes a lot, I believe. For me, the sound is in the rectifiers, anyway.
 
Feb 10, 2023 at 11:54 PM Post #4,579 of 4,871
Oh, of course! I still love the WA6-SE's and consider them my babies! If it wasn't for the need for space, I'd keep them. I may keep them anyway and just box them up for now and put them in storage. I just figured I'd pass them along to someone looking to get into the tube sound and R2R DACs.

I actually never messed much with the 13DE7's aside from stock - I immediately gravitated to the 13EM7's. I know @Basco (I think) has some Hitachi 13DE7s that he likes a lot, I believe. For me, the sound is in the rectifiers, anyway.
😀 , yes, rectifier dictates the SQ for WA6-SE but i've done rolling pretty much all DubStep Girl's massive rectifier list. my next adventure would be: Woo Audio WA5-LE Gen 2 w/upgraded parts & Synergistic Research PURPLE Quantum Fuse. Heard that's a killing amp with legendary 300B sound!!
 
Feb 11, 2023 at 7:00 AM Post #4,580 of 4,871
Oh, of course! I still love the WA6-SE's and consider them my babies! If it wasn't for the need for space, I'd keep them. I may keep them anyway and just box them up for now and put them in storage. I just figured I'd pass them along to someone looking to get into the tube sound and R2R DACs.

I actually never messed much with the 13DE7's aside from stock - I immediately gravitated to the 13EM7's. I know @Basco (I think) has some Hitachi 13DE7s that he likes a lot, I believe. For me, the sound is in the rectifiers, anyway.
I like the Raytheon a little bit better over the Sylviana yellow print 13DE7 in terms of dynamic and bass presentation. I initially thought to go for Hitachi‘s but so far I’m good with the three driver pairs I have for now.

At the End of February I’ll get the a little rectifier upgrade with WE422a from early 50ies (352) and a GEC U52. Also I made a good deal (couldn't let that pass) on Elrogs 274B which I wonder will do as good as the ER5U4G which I initially had on my short list.

So far I’m set on my WA6-SE 🎶
 
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Feb 11, 2023 at 8:42 AM Post #4,581 of 4,871
😀 , yes, rectifier dictates the SQ for WA6-SE but i've done rolling pretty much all DubStep Girl's massive rectifier list. my next adventure would be: Woo Audio WA5-LE Gen 2 w/upgraded parts & Synergistic Research PURPLE Quantum Fuse. Heard that's a killing amp with legendary 300B sound!!
I wonder where you got that idea from… :k701smile:
 
Feb 11, 2023 at 3:26 PM Post #4,582 of 4,871
I wonder where you got that idea from… :k701smile:
😀,that's why need you to stay here!! How much difference WA6-SE Gen 2 vs. WA5-LE Gen 2 (with upgrade and reasonable 300Bs)? Day and night?
 
Feb 11, 2023 at 3:32 PM Post #4,583 of 4,871
I like the Raytheon a little bit better over the Sylviana yellow print 13DE7 in terms of dynamic and bass presentation. I initially thought to go for Hitachi‘s but so far I’m good with the three driver pairs I have for now.

At the End of February I’ll get the a little rectifier upgrade with WE422a from early 50ies (352) and a GEC U52. Also I made a good deal (could let that pass) on Elrogs 274B which I wonder will do as good as the 5U4G which I initially had on my short list.

So far I’m set on my WA6-SE 🎶
Congrats!! Let us know how you feel WE422a (50ies) vs GEC U52. See if you can confirm my findings. WE422a (50ies) is the ultimate rectifier for WA6-SE, look no further. Elrog ER5U4G is on my radar.
 
Feb 11, 2023 at 5:42 PM Post #4,584 of 4,871
😀,that's why need you to stay here!! How much difference WA6-SE Gen 2 vs. WA5-LE Gen 2 (with upgrade and reasonable 300Bs)? Day and night?
It’s a pretty dramatic difference, especially when you realize that you can make changes to your sound with each of the sets of tubes.

I have inky black background with all sorts of power, and the versatility with tube rolling is the most enjoyable part of it. The WA6-SE is good, but limited in how the sound can be changed. The WA5-LE is so very versatile it’s like having multiple amps.

For example:

If you want a warm, lush, “typical” 300B sound, use Western Electric 300B, RCA “Grey Glass” 6SN7’s, and some USAF “Mighty” 596 rectifiers.

If you want light and airy, throw in Takatsuki 274B rectifiers and 300B power tubes, and some Sylvania 7N7 or 6F8G drivers.

If power and analytical is what you’re after, it’s Elrog 5U4G rectifiers, Elrog 300B-amp power tubes, and Mel’s 1578 drivers.

Romantic and robust? Emission Labs 5U4G + 300B (bonus points for 300B Mesh) and Tung Sol 6F8G….

Then we can get into high and low power, H/L level and H/L impedance settings. But that’s another story.

106A0402-CEF1-44A5-92DC-199143BC141B.jpeg
 
Feb 12, 2023 at 1:08 AM Post #4,585 of 4,871
It’s a pretty dramatic difference, especially when you realize that you can make changes to your sound with each of the sets of tubes.

I have inky black background with all sorts of power, and the versatility with tube rolling is the most enjoyable part of it. The WA6-SE is good, but limited in how the sound can be changed. The WA5-LE is so very versatile it’s like having multiple amps.

For example:

If you want a warm, lush, “typical” 300B sound, use Western Electric 300B, RCA “Grey Glass” 6SN7’s, and some USAF “Mighty” 596 rectifiers.

If you want light and airy, throw in Takatsuki 274B rectifiers and 300B power tubes, and some Sylvania 7N7 or 6F8G drivers.

If power and analytical is what you’re after, it’s Elrog 5U4G rectifiers, Elrog 300B-amp power tubes, and Mel’s 1578 drivers.

Romantic and robust? Emission Labs 5U4G + 300B (bonus points for 300B Mesh) and Tung Sol 6F8G….

Then we can get into high and low power, H/L level and H/L impedance settings. But that’s another story.

106A0402-CEF1-44A5-92DC-199143BC141B.jpeg
That's unbelievable! Tube rolling heaven....Worth of the money: same piece of music you get different presentation depends on which set of tubes put on. Did a quick search, WE 300B used pair can still be bought ~ $5k. Can only go up more....Heard that WE 300B is truly heavenly sound 😀
 
Feb 12, 2023 at 8:31 AM Post #4,586 of 4,871
What’s the output impedance for WA6se 2nd gen? I‘ve seen 15 low and 50 high in some reviews that are several years old, but Nothing for the 2nd gen in recent years.

Output impedance is not listed in the manual.
 
Feb 12, 2023 at 9:22 AM Post #4,587 of 4,871
What’s the output impedance for WA6se 2nd gen? I‘ve seen 15 low and 50 high in some reviews that are several years old, but Nothing for the 2nd gen in recent years.

Output impedance is not listed in the manual.
Low jack is 15-50, high is 50+
 
Feb 12, 2023 at 9:23 AM Post #4,588 of 4,871
That's unbelievable! Tube rolling heaven....Worth of the money: same piece of music you get different presentation depends on which set of tubes put on. Did a quick search, WE 300B used pair can still be bought ~ $5k. Can only go up more....Heard that WE 300B is truly heavenly sound 😀
Yes, original WE300B are getting very rare and very expensive, but the reissue are $1,500/pr new (and can be found cheaper on the used market).
 

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