Pre amp and Power amp advice needed

If you want pieces that won’t live in the shop, stick with Rogue (most affordable), Luxman, VTL, CJ, or Audio Research.
Avoid anything made in China!!!!!!!!!!!!!!!!
Triode designs require gawd aweful speaker designs, usual involving horns (squawwwwk) or multiple cheap drivers with massive crossover induced distortion (Tekton).

@chorus  

I had a Cary 120 running my Tannoy FSMs 94 sens. 4ohms.
Tired of tubes issues I sold it and bought a Pass Labs XA25.

I had a similar journey with the Cary 120 a couple of years ago.  It was just too noisy with such a large array of tubes and this persistent transformer hum that drove me insane.  I actually traded it back into Cary for a new SLI80-HS for my second system which I actually really enjoy and happens to be dead quiet (amazingly) even paired with 99dB Forte III's.  I replaced the Cary 120 in my main system with a Pass XA30.8 but kept running it with my VAC Ren MK5 linestage.  I'm in sonic heaven these days as I feel the XA30.8 gives me everything I love about tube sound but with much more bass extension and grip and can drive speakers with much more authority even at much lower "rated" power.  I'm a huge fan of pairing Class A SS amps with tube preamps and suggest the OP consider that route in his range of options. 

I have the Tannoy Legacy Arden's. I had them paired with Pass Labs X260.8 Mono's and Pass Pre, I also tried CODA Class A paired with the 7x pre, and now I am using an EVO400 Integrated with EL34's. All were great but I am enjoying the PrimaLuna set up much more.

@three_easy_payments
Yes, Rogue Atlas Magnum II takes EL34 as well.
The idea is to have a really good pre amp so I can switch between different power amps with different types of tubes.

@yogiboy
Problem is that I'm living in Sweden and there's no way for me to listen to some of the US made amps. One of these is Quicksilver, another is Decware. Sad, but true.
And another thing is that one of these would cost me + 40% with fees and taxes and then there's the shipping.

@jjss49
I've tried an Audion Silver Knight (300B, about 8 w), but it just don't have the power to drive my Tannoys without the feeling that the sound is compressed. Even at very low volumes.

@pvmike
I would love to try out Decware, but as I said, no possibilities in Sweden.

@atmasphere
I really like the sound of the EL34 and I have several matched quads of them.

@knotscott
Once again, it's something I have to buy from the US. And building amplifiers is not my cup of tea. I would surely burn down the house.

@kingbarbuda
I've actually tried a Primaluna, Primaluna Dialogue Premium. But I wasn't impressed at all. The sound was very big and deep and sweet. But it was also kind of lame and like a thick cloth over the speakers. When I replaced the Primaluna with Feliks Elise headphone amp the sound became lighter and there were air around the instruments. But the drawback were the much smaller soundstage.
I suppose that Primaluna and Tannoy isn't the best combination.

@volumizer
Here we go again. No Cary Audio in Sweden.

@wsrrsw
Primaluna and Tannoy doesn't seem to be a good pair.

@chorus
Sure there are issues with tubes. For the time being I use a ss, Moonriver 404, the best ss I have ever heard. But I still miss the midrange and that sparkling treble that only tubes can give. But Moonriver 404 is not far behind and it has a much faster and tighter bass. But still...

@chilli42
Sure better bang for the buck. But not that versitile if you want to change the power stage, as I want.

@zyphryx
Hmm... yet another Primaluna fan. What's wrong with my ears?

@avanti1960
This is very interesting. Rogue Audio is one of the few US brands I can find and have a chance listening to. At my home.
I think the small tubes are ECC82:s and ECC83:s which I have a bunch of in different brands. Are they used in matched pairs?
Have you tried EL34:s in the Stereo 100 amplifier or maybe you don't like the sound of EL34:s at all?
Regarding RP-5 and RH-5; isn't RP-5 "more a pre amplifier" than RH-5. Because I'm not interested in the headphone amp at all because I'm a Stax guy (Stax + Mjölnir = heaven). And the Rouge Audio agent in Sweden doesn't have any Rouge HPA at all.
Is the RH-5 more expensive than RP-5 in the US? Is the balanced option the only benefit with the RH-5?
Which speakers do you use? How are their character considered to be? Bright? Rolled of? Forward? etc.

@simna  Atlas Magnum uses a matched pair of 12AU7 / ECC82 as the amp drivers  and a matched pair of 12AX7 / ECC83 as the phase splitters.  
There are numerous NOS tubes that can give the amp a warmer flavor.  
The RP-5 preamp uses (4) ECC82 tubes, two matched pairs.  

I did not try the EL34s in the Stereo 100, just the Cronus Magnum II.  
The sound was less dynamic, somewhat dull and weak compared to the KT120s.  It was quite a contrast.  
RP-5 is a better preamp than the RH-5 but the RH-5 still has an excellent line stage preamp regardless.  The use of XLR connectors was important- I do  not use the headphone amp.  
The RP-5 is $3500 including phono stage, The RH-5 is $2500 no phono stage, $2900 with phono.  
The preamp below the RP-5 is the RP-1 ($1900).  The RH-5 is a much better sounding preamp than the RP-1.  The RH-5 has 3 switchable gain settings and balanced connections.  
My Speakers are Harbeth SHL5+, they are forgiving but somewhat forward in the upper midrange / treble.   I had Harbeth C7ES3 with the Cronus Magnum.  Very smooth and rich and more forgiving / less forward than the SHL5+.  
The star of the show is the Stereo 100 amplifier - a very dynamic, powerful tube amp that is refined, transparent and with a huge sound stage.