Schiit Freya+(Plus)

I recently purchased a B-stock Freya + preamp from Schiit as I wanted a balanced preamp to work in a second system. Right now, I have it connected in my primary system in place of my Audio Research LS7 tube line stage. The Freya + came with JJ 6SN7 tubes, but I already had a matched pair of OS GE gray plate side getter 6SN7’s and a matched pair of new production Tung Sol 6SN7’s. I installed the GE’s into the voltage gain stage (right side) and the Tung Sol’s into the buffer stage (left side). I used some really nice socket savers from Eurotubes in Portland, OR. These are quality constructed socket savers using octal tube bases with Micalex octal sockets. The socket savers allow me to remove the tubes easily from the Freya + sockets. 
I connected my SMSL SU-8 v. 2 DAC with Mogami 2549 balanced XLR cables to the Freya +, and then used another pair of the Mogami balanced cable from the Freya + to a Pass DIY Aleph J amp’s balanced inputs. The Aleph J drives my modified Klipsch Forte II’s. 
I started out listening with the JFET solid state buffer mode for the first two hours. I was really impressed with the black background, tonality and large, deep soundstage. Then I switched to tube differential mode and allowed the preamp to play for 20-30 minutes before any critical listening. There was no hum, no pops or crackles or any noise for that matter. What I heard was a an even larger soundstage with with a palpable presence. Now I understand others who have reported hearing the Freya + cast a holographic sound stage. The separation was outstanding and I was impressed by the rich, “almost creamy” tone. It definitely sounds different from my ARC LS7 line stage. They are both great line stage preamps, and it’s too early to draw clear comparisons. What I can say is that I really like the balanced connections from my DAC to preamp to power amp. The background is black and allows me to hear subtle details and nuanced tonality. The preamp does get rather warm in tube mode, but not scorching hot. In completely passive mode or JFET buffer mode, the amp does not get warm at all. For background music listening, the passive or JFET buffer modes are great sounding and will not wear out the tubes. For active listening, I do prefer with the tube mode. 
My experience really mirrors what most reviewers have positively written about the Freya +. I am not sure why some people have had problems with tubes or noise. The Freya + came as advertised offering tremendous value for a $900 preamp. 

Hello, I know this thread is getting old. But would like to know if any of you have the latest recommendation for the best tubes with the Freya?

What tubes would be best for the pair on the LEFT side and which pair of tubes would be best on the RIGHT side of the Freya?

Please post links to eBay or websites to buy tubes would be greatly appreciated.

 

Thanks for any advice!

With all due respect, I believe your question has been answered above.

Schiit says use matched pair on both gain and output pairs. Others say not necessarily. Just be aware of impedance mismatches. 

Experiment. Rolling is easy with the Freya+. 
You don't need links to retailers. They are named in the posts above and any third grader can find them on a Google search.

My advice, start out with the stock tubes (JJs last I knew), get a good fix on the sound with familiar material, then try Tung-Sols, right then left, then move to GE or whatever. Bad impedance mismatches will probably announce themselves.
BTW, one of the original JJs in my unit went south after a couple weeks. Schiit said move it from buffer to gain, I did, and the defect was no longer noticeable. 
But then soon after, I rolled the whole batch and am still doing so when the urge strikes.

In my experience there is no easier, cheaper preamp to roll tubes on than the Freya+. Seems to be designed for the purpose. So have at it. Read the posts above and remember nobody will have the same experiences given different rooms, different connected equipment, and different musical preferences. There is no magic answer for YOU. Read the tips above and proceed accordingly. You will know it when you find it.
 

ok, let me see if I found the correct pair of Tung Sol 6SN7 for the LEFT side from rhing:

https://www.ebay.com/itm/313513219446?hash=item48fed81576:g:AfUAAOSwZ8ZW~CRx

Here is the pair of OS GE gray plate side getter 6SN7 for the RIGHT side:

https://www.ebay.com/itm/173936316220?hash=item287f698f3c:g:90EAAOSwEFhdlMVU

 

There are so many Tung Sol tubes and GE tubes. Not to mention some GE tubes are from the 1950. Is everyone using tubes from the 50s or from current years?

Definitely you are overthinking, just as I was doing when I started this thread.

Like your current combo idea. Give it two weeks and see if it leaves you wanting. If you find something missing, then roll, roll, roll. The possibilities are endless and the enjoyment lies more in the process than in the end result -- assuming there could ever be an "end." As ever, it's about the journey, not the destination.