Show us your Head-Fi station at it's current state. No old pictures please...
Apr 11, 2023 at 11:17 PM Post #37,126 of 41,454
Tube rolling has been fun and provided incremental gains for years, but I never tasted true transparency until I converted to a tube keyboard.🥸
Audiophile thoughts run through my head. Nobody should be able to run anything but new production tubes in this thing. Legally.
One day the NOS will run out! I don't care if the Mullards provide a warmer glow, it's not allowed!

https://www.ebay.com.au/itm/283253451173

s-l1600.jpg
 
Apr 11, 2023 at 11:36 PM Post #37,127 of 41,454
Speaking of which. Post of the devil and the uh... Devil Postman will appear. These just arrived. National Gold Line 6dj8's. Made in the USSR, so... 6n23p's? Gotta decipher the code: 9031.
Roll em into the BA3 now.

P4120055.JPG
 
Apr 12, 2023 at 7:22 AM Post #37,129 of 41,454
Speaking of which. Post of the devil and the uh... Devil Postman will appear. These just arrived. National Gold Line 6dj8's. Made in the USSR, so... 6n23p's? Gotta decipher the code: 9031.
Roll em into the BA3 now.

P4120055.JPG

Tube Report :muscle:

These are fantastic. Ripping bass and treble and detail. Loud and hitty and textured. Monster bass.
There's only one thing wrong: that treble will highlight sibilance. This is the first time I've heard something distracting/a little piercing come out of the Beyer DT 880 600 ohm. It really isn't pleasant. Need to weigh things up. I may just listen around it, I like these so much.
If an album is too sibilant, I'll just listen to it on different headphones. Although that sibilance comes through a little on the k240 DF's now as well :sweat_smile:
And, maybe with a little more break-in things will smooth out a bit. We'll see.
 
Apr 12, 2023 at 10:25 AM Post #37,130 of 41,454
z.jpg
 
Apr 12, 2023 at 5:40 PM Post #37,135 of 41,454
Somehow I just realized that your oblivion has different lay out than mine. My 6AT6s are at front of EL81.

Mine's an earlier version and that's how the tubes are lay out. Also mine has additional speaker output so the input tubes are the higher gain 6av6.
 
Apr 12, 2023 at 9:54 PM Post #37,138 of 41,454
FB43A549-DF97-49AE-876F-18A8094B0740.jpeg

[ Woo Audio WA3 (OTL): Tung-Sol 5998, pair RFT ECC81 ‘foil getter’; Liquid Platinum: pair Sylvania ‘long plate’ 12AU7. ]
 
Apr 12, 2023 at 9:59 PM Post #37,139 of 41,454

[ Woo Audio WA3 (OTL): Tung-Sol 5998, pair RFT ECC81 ‘foil getter’; Liquid Platinum: pair Sylvania ‘long plate’ 12AU7. ]

FB43A549-DF97-49AE-876F-18A8094B0740.jpeg
[ Woo Audio WA3 (OTL): Tung-Sol 5998, pair RFT ECC81 ‘foil getter’; Liquid Platinum: pair Sylvania ‘long plate’ 12AU7. ]

How do you compare your Custom Cans HD6XX to the 660s2 with an otl? preference for one over the other?
 
Apr 12, 2023 at 10:13 PM Post #37,140 of 41,454
How do you compare your Custom Cans HD6XX to the 660s2 with an otl? preference for one over the other?
I love both on the Woo WA3 and on the LTA MZ3. Overall, my preference is for 660S2. It has more extended frequency range and more tiered soundstage. The 6XX, while improved greatly by the Custom Cans UK mods, is still ‘warm’. This, to me, isn’t bad: it works well on ‘thinner’ recordings. In terms of tonal comparison, 660S2 versus 6XX reminds me of ZMF Eikon versus ZMF Atticus. 🤷🏻‍♂️😀.
 

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