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 !
0461
Like others have mentioned above, I Can't say enough about the Macintosh 2301's with these speakers.
The 160.5´s are due nex week. And I have the oppertunity to try a set of X600.5 as well. Will be very interesting to compare them. Will be back with impresions shortly.
My power XA160.5 got about 450 hours and it sounds great. At this moment i'm thinking to change my pre from REF3 to REF 40th Anniversary. Does anyone ever heard this pre in this combination ( SF Stradivari + XA160.5 + ARC REF 40th) ?
Johnb30, haven't that exact combo but would opine:

I have the XA100.5's. I believe a lot in preamps. I matched up a Conrad Johnson ART 3 with them and the combo produces a sound that is the best I've heard. I have a lot of respect for AR's preamps and would imagine the REF 40 would be excellent with your 160.5's. They deserve the best pre you can put in front of them.