Amps for Sonus Faber Stradivari Homage

I have a pair of Stradivaris that I love, but I´m having a little trouble finding the right amps for them. My system consists of: Emmlabs CDSA SE latest version, Clearaudio Champion Level two/ SME V/ Benz Ruby, ARC REF3, MSB 202 monos.
I have driven the speakers with a set of Pass XA 100.5 before, but they sounded compresed quite quickly. The MSB´s offer more power than the 100.5´s and sound more detailed and airy, but also leaner and brighter.
I love detail and air, but I also crawe bass slam and body in the midths and highs. I absolutly hate lean and bright sound, no matter how detailed it might bee.
I have owned quite a lot of Krell gear in the past. I liked the bass of the ols stuf like the KSA s series + the first FPB stuff. The rest of the frequency range however, sounded rough and "solid state" to me. I liked the detail of the MCX 450´s, but they sounded to lean in the low frequences to me. I have tried tube amps as well, but I have not yet found a pair that did´nt sound like tubes in the bass region
So I am dreaming of a set of amps that delivers a full bodied, warm but detailed sound with bass slam and bass detail as well.
Any recomendations ?
NB: English is not my native language, so I hope for your understanding if my spelling is off !
My MSB´s have broken down... So now I think I will be ordering a set of Pass XA 200.5. They say they sound like the 100.5 but with a lot more Umpf... Interesting.
Wow...what happened to the msb? too bad. yes, Pass and Strads are a great combination. good luck!
I have a sonus faber stradivari with mcintosh mc275 V. I changed the 4 6550 tubes to tung sol gray plates. I used mullard cv492 12ax7 and mullard 12at7 with kondo ksl lp interconnect connected to jadis jp80 mc pre amp and sounds satisfying.
Nice, Teleshack...i have heard many Strad owners enjoy them with Mcintosh. Jadis! Wow! I have heard them with CJ mid-powered amp, and with CJ preamp/Gryphon Antileon...tremendous speakers! Enjoy!!!