Schiit Valhalla Tube Rolling thread.
Sep 4, 2021 at 8:02 PM Post #1,937 of 2,717
Sep 4, 2021 at 8:34 PM Post #1,938 of 2,717
Are you asking me? I have HD6XX and ZMF Aeolus.
I think the HH6XX are 300 ohms, Valhalla would be a very nice match. No idea what the ZMF's are.
 
Sep 4, 2021 at 8:39 PM Post #1,939 of 2,717
For those Valhalla II users who wish to stay within the 6922-type driver tube “sphere”, another high recommendation - besides the Amperex PQ 7308 - is the Tungsram E88CC. Each sonic parameter rates highly to me and the gestalt is impressive.
9523D33A-A45E-4808-927F-50480BD48163.jpeg
 
Sep 4, 2021 at 8:43 PM Post #1,940 of 2,717
I think the HH6XX are 300 ohms, Valhalla would be a very nice match. No idea what the ZMF's are.
Auteur is 300 ohms…great with Valhalla II (and Woo WA2, Woo WA3, LTA MicroZOTL MZ3…)
 
Sep 4, 2021 at 8:56 PM Post #1,941 of 2,717
Sep 4, 2021 at 8:59 PM Post #1,942 of 2,717
What headphones will you be pairing? It's pretty tough to beat VH2 with ZMF or even the Senn. HD6XX. I own the VH2 and Lyr 3 and VH2 with my HD6XX and nice tubes is noticeably better sounding than the Lyr 3 with the HD6XX, IMHO.

Don't get me wrong, Lyr 3 is a great hybrid, but the sound of an all tube OTL with the right cans is sublime.

Which "nice tubes" do you have or would suggest? My DAC is the Drop Airist R2R at the moment.
 
Sep 4, 2021 at 9:04 PM Post #1,943 of 2,717
Sep 4, 2021 at 9:05 PM Post #1,944 of 2,717
I certainly do not have all that some consider holy grail, but 2 driver pairs I would suggest are the much talked about Brimar CV4033 Footscray and the Raytheon Unline 7728. Both require a 12A*7 tube to 6922 amp adapter, but they are quite easy to find and a safe alternative to the native 6922/6DJ8, etc.

I have also replaced the 6N1P power tubes with Foton good grid versions. A VERY inexpensive but worthwhile upgrade.
 
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Sep 4, 2021 at 9:18 PM Post #1,945 of 2,717
The Amperex 7308 matched pair at C$ 280 seems reasonable. I have seen them listed in the US up to $ 300 (for very strong testing / Gm values).

I certainly do not have all that some consider holy grail, but 2 driver pairs I would suggest are the much talked about Brimar CV4033 Footscray and the Raytheon Unline 7728. Both require a 12A*7 tube to 6922 amp adapter, but they are quite easy to find and a safe alternative to the native 6922/6DJ8, etc.

I have also replaced the 6N1P power tubes with Foton good grid versions. A VERY inexpensive but worthwhile upgrade.

I am considering these options.
https://www.thetubestore.com/ge-6cg7-6fq7?additional_options=3

https://www.thetubestore.com/jj-e88cc-6922-gold?additional_options=3

Those other options seem pretty pricy. Even so where could I find these?
 
Sep 4, 2021 at 9:22 PM Post #1,946 of 2,717
Sep 4, 2021 at 9:29 PM Post #1,947 of 2,717
Yeah - they're pricey, but if I added up all the $$$ I spent on prior tube purchases working my way up to these tubes, it would make me cry. If I only I knew then what I do now I could have saved much money and retired. 😀

I consider these my end-game for VH2. I was just trying to save you from the tube rabbit hole. Futile, I know. We must all learn that lesson on our own. Of course you could be that one in a million. 😉

The Brimar CV4033 may be available on Pulse Tube Store. Uniline 7728s pop up on eBay every now and then.

BTW - Gold Lion 6922 may be a more affordable option. They do sound quite good in VH2.
 
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Sep 4, 2021 at 9:47 PM Post #1,948 of 2,717
Yeah - they're pricey, but if I added up all the $$$ I spent on prior tube purchases working my way up to these tubes, it makes me cry. If I only I knew then what I do now I could have saved much money and retired. 😀

I consider these my end-game for VH2. I was just trying to save you from the tube rabbit hole. Futile, I know. We must all learn that lesson on our own. Of course you could be that one in a million. 😉

The Brimar CV4033 may be available on Pulse Tube Store. Uniline 7728s pop up on eBay every now and then.

BTW - Gold Lion 6922 may be a more affordable option. They do sound quite good in VH2.

There are a bunch of different options when I search for Brimar CV4033 on PTS. https://pulsetubestore.com/search?q=Brimar+CV4033

I don't use eBay as I don't have PayPal so no point looking there.

I think I will try those Gold Lion 6922 and see how well they do. Perhaps I will looking into those Amperex 7308 as well.
 
Sep 4, 2021 at 10:00 PM Post #1,949 of 2,717
Go back to page 95 and read the progression and like Ripper said you can save yourself a lot of money in the long run. I tried some GE 6gu7 tubes early on and they were ok but I found early 1950s 6BK7 and 6BQ7s that were much better. After reading the posts I recommended I now have the Brimar CV4033 and CV455 with adapters and they truly take the Valhalla to another level. If you read those pages you will find a lot of options and what to expect taking advantage of other members' experiences. I, like Ripper, think of the money spent seeking the best sound I could squeeze out of the Valhalla. Not that it wasn't fun but....... So my advice is to research in this thread and maybe Mjolnir 2 tube rolling thread before you start spending more money.
 
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Sep 4, 2021 at 10:01 PM Post #1,950 of 2,717
There are a bunch of different options when I search for Brimar CV4033 on PTS. https://pulsetubestore.com/search?q=Brimar+CV4033

I don't use eBay as I don't have PayPal so no point looking there.

I think I will try those Gold Lion 6922 and see how well they do. Perhaps I will looking into those Amperex 7308 as well.
If you do go for Brimar CV4033 on PTS, these are the ones ($US):
AA8F2F47-7A61-4DC7-91BE-669D9A7D0973.png
 

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