Looking to introduce some tube magic to my system

If you want to move to tubes, buy an Atma-Sphere MA-1 3.3 and an MP-3 3.3. 
They are some of the best sounding equipment out there, have great reliability and superb customer service.
I bought my equipment only knowing that they worked well with my Vandy's and I haven't been disappointed. In fact I am upgrading my preamp to the MP-1 from the MP-3.
And, the owner, Ralph Karsten is a regular here on Agon. PM him at atmasphere.
Bob

@zigggi,
I was in the same situation as you almost 2 years ago. No experience in tubes and wanted to try tubes. After researching a lot and getting opinions on this forum, I decided to go with the Bracket Labs Rhumba. I am very happy with this preamp. Highly recommended. I purchased it without auditioning. They have a trial period, but I doubt it that you will return it. 

I'd go to a Prima Luna integrated. It'll make a bigger difference, for less money (especially after selling the mono-blocks), and eliminate the need for a couple interconnects. Less money, better sound, what's not to love?

Oh and yes the Prima Luna will easily drive your speakers. Probably even with greater bass extension, authority and definition than you have now.

Something the OP should be aware of if he wants to consider pairing a PrimaLuna integrated amp with his GoldenEar Triton One speakers:

In the following thread ...

https://forum.audiogon.com/discussions/primaluna-prologue-integrated-help-needed

... the OP reported an unusual problem using a PrimaLuna ProLogue integrated amp with his GoldenEar Triton Two speakers. He reported that a "throb" at about two beats per second occurred when the volume was raised beyond a certain point.

Like the OP’s Triton Ones that member’s Twos have internal amplification for the deep bass, and consequently an impedance that rises to very high levels at deep bass frequencies. (The impedance curves of the One and the Two are very similar, as can be seen in John Atkinson’s measurements here and here). And it turned out that the amp wasn’t happy working into a load that was essentially absent at very low frequencies. The result being what is referred to in electronics as "motorboating."

I suggested that he try putting suitably chosen load resistors on the output terminals of the amp, and fortunately that solved the problem.

I have no way of knowing, of course, if the same issue would arise pairing any of the other PrimaLuna integrated amplifier models with the Triton One. But it’s certainly a possibility that should be considered before proceeding down that path.

Regards,
-- Al