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Woo Audio WA6 + WA6SE: Tubes, Comments, Pictures, and Advice
Nov 18, 2013 at 11:36 AM Post #1,007 of 4,839
Anyone got some recommendations on tubes? Bass impact is important :) I got some help from Dubstep Girl, recommended 6FD7, I have a couple of Philco 6FD7 but I think one of them is faulty. When I "tap" on the side of the amp I can hear feedback the right channel, if I switch the drivers I hear it on the left side.
 
Currently testing out the a couple of Rogers 6DR7, they were a little bit brighter then the Philco 6FD7 I think but got a mean punch :D
 
Oh and I am using the Tung Sol 5U4G Rectifier currently, also have the stock and RCA 5V4G.
 
Here's a list of my drivers:
Philco 6FD7 (faulty?)
Rogers 6DR7 (rebranded Sylvania)
GE 6DE7 (got 6 of those, lol)
GE 6EW7
RCA 6EW7
RCA 6DE7
Raytheon 6DE7
 
Nov 19, 2013 at 10:11 AM Post #1,008 of 4,839
I still prefer 6FD7.  Maybe a tube damper or ring on your driver tubes would kill the microphonics.  I've used these to good effect:  http://herbiesaudiolab.net/compare.htm
 
Nov 19, 2013 at 10:38 AM Post #1,009 of 4,839
yeah i would try and find a good pair of sylvania 6fd7 fat bottles.
 
the 6fd7 are by far the best tube for the wa6-se, if i rebought the wa6-se, i would probably ask jack to optimize the wa6-se for the 6fd7 and maybe even if i limit my tube rolling options, to have it optimized specifically to work for that tube since it sounds by far the best.
 
Nov 19, 2013 at 8:07 PM Post #1,010 of 4,839
dubstep girl said:
  yeah i would try and find a good pair of sylvania 6fd7 fat bottles.
 
the 6fd7 are by far the best tube for the wa6-se, if i rebought the wa6-se, i would probably ask jack to optimize the wa6-se for the 6fd7 and maybe even if i limit my tube rolling options, to have it optimized specifically to work for that tube since it sounds by far the best.
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 Black gate/RK50/Vcap :)
 
Nov 20, 2013 at 9:49 AM Post #1,013 of 4,839
bassboysam said:
Hey folks, is it normal to hear a slight hum from the WA6? Not through the headphones but the amp itself.
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Mine's dead quiet, inside and out.
 
Dunno.
 
Nov 22, 2013 at 8:35 AM Post #1,016 of 4,839
xtri said:
Anyone got some recommendations on tubes? Bass impact is important :)

I would look at your rectifier for this. I found 5r4gy(s) to have more bass punch, but the sophia to have more quantity and extension if you want to spend the dough. My mullard black base GZ34 has more linear and extended bass than the sophia, but I wouldn't call it punchy in the midbass. I switch between the mullard and the 596 if I run 6FD7. I tried a tung sol 5ug with my rig, but found it pretty blah. Strange, because its a highly recommended 5UG. Also, I would stear clear of the 6EW7 if you want bass.
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Nov 22, 2013 at 2:37 PM Post #1,017 of 4,839
Got the TH-600 today. Didn't notice it with the HE-500 but it seems I have ground looping issues :frowning2: **** me... Whining when I move the mouse and humming sound in the background.
 
Nov 22, 2013 at 2:58 PM Post #1,018 of 4,839
glam bash said:
 
xtri said:
Anyone got some recommendations on tubes? Bass impact is important
smily_headphones1.gif


I would look at your rectifier for this. I found 5r4gy(s) to have more bass punch, but the sophia to have more quantity and extension if you want to spend the dough. My mullard black base GZ34 has more linear and extended bass than the sophia, but I wouldn't call it punchy in the midbass. I switch between the mullard and the 596 if I run 6FD7. I tried a tung sol 5ug with my rig, but found it pretty blah. Strange, because its a highly recommended 5UG. Also, I would stear clear of the 6EW7 if you want bass.
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Thanks for the tips man, currently I have to get everything working 100%, so I will save this and other tips and check it out again when I got everything working :)
 
Nov 22, 2013 at 3:40 PM Post #1,019 of 4,839
xtri said:
Got the TH-600 today. Didn't notice it with the HE-500 but it seems I have ground looping issues :frowning2: **** me... Whining when I move the mouse and humming sound in the background.
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I had a humming before, it may not be the same as your situation. Are you running usb from computer? Try optical. My source's ground somehow got mixed with the computer ground. This problem would be more pronounced on high eff. 'phones. There is a solution but it costs quite a bit so I haven't tried it out.
 
Nov 22, 2013 at 3:52 PM Post #1,020 of 4,839
I'm running RCA from WA6-SE to the Asus Xonar Essence STX. Can't run optical.
 
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