50 hours of research = 1 amp for Totem Sttaf

akg is right in that Totems are very often paired with SS amps and Simaudio is it's Canadian brother. But the Sttaf can go either way, SS or tubes, since it's an easier load than other Totems.

As far as Rogue vs. PrimaLuna Prologue Premium, I know many of the Rogue products and I've only heard excellent words about the PL's. My concern is that the Prologue Premium at 35wpc may be underpowered for this speaker.

I auditioned the Sttaf a few years back, and it became more dynamic when supplied with some power.

Nice choices. I would pick the rogue - great sound. Also may want to add Hegel and Ayre to your audition list. Haven't heard the ayre but seems to be highly regarded. I have the Hegel and love it. 

The PL will have no problem driving the Totum and other speakers with less efficiency unless it's very inefficient.  The power supply is huge for a 35w tube amp.  

It's all in what you want when it comes to tubes or solid state.  Some nice SS recommendations given here.  I would purchase from a reputable company in case you are not satisfied and want to sell it.  

Q. Which of the SIMAUDIO integrateds  with Totem you may ask?

A. your budget drives that. Say, a used i5?

I've owned both the ARROS and FORESTS simultaneously in prior systems so I know their strengths and warts well, and the STAFFS are between them in their product line with a strong lean towards the ARROS in comparison.

i would not go hog-wild and buy a premium priced integrate amp with the price/performance output limitations of where the STAFF resides... It won't save you  and certainly won't drive you to the next level in performance.

A) In simpler words, tailor your choice of amp unit to the lower to mid price units at best as a preferred price/performance match to the STAFFs.

As a general rule, more "grunt" in the Amos is best with Totems ... WPC by themselves are meaningless and Totems crave hi-current amps. Rarely will you find them partnered at the audio expos with anything other than hi-current hi-WPC SS gear . That in itself is a noteworthy point to consider ... Ergo the SIM, Plinius, AYRE brand leanings thst they frequently use.

I have test-driven my Totems  with top-of-the line CARY tube amps  and found the listed SS integrated amps all bested it , and the differences were not subtle. 

Yes, SIMAUDIO also has its own DAC ( a fine piece). Google  the specs and reviews...better still go audition it with an all Totem/SIM setup.

wow that's interesting -- I thought class A with lower WPC would be better than a SS with higher WPC?

what's your view on the NAIM versus SIM?

Thought this was a Manley Stingray, Magnum 2 and Prologue Premium race?!  can anyone else chime in here...