Amp choice for Harbeth (SHL5)


Hi,
I recently purchased the SHL5s. I would like to know what kind of amp you are using with them. 

I am NOT looking for an integrated amp although I know LFD and few other integrated amps are recommended. The only reason is I recently purchased an passive pre.

In this short time having them, what I found out although SHL5 plays good with all the amps/different wattage I have tried (Class D & T, older SS Marantz), they are better with 100wpc plus amp. To me they want that reserved power. 

I would like to take these superp speakers to another level with "that" amp. 

I have never owned tube amps. I would like to try maybe the VAC PA100/100 (can't afford newer models) or something in this $1500 price range but not less than 80wpc in 8 ohms. I am little scared of using/dealing with tubes but don't want to hide anymore. 

Please share your amp suggestions with me. 

Thanks. 


celo
Post removed 
At the LA audio show last weekend, the room with Harbeth SHL5+ driven by Naim amplification sounded great. Definitely on the euphonic warm side of life, but so smooth, great depth, imaging and layering. Probably not perfect in the technicalities, but I didn’t care. Truly a sound that just makes you enjoy the music.

Aside from that, I must say the Pranafidelity amp with the Class D Ncore modules in Steve Norber’s suite at the show was a winner. Although he was driving his own Pranafidelity speakers (which I liked better than the Harbeth), I can imagine the amp performing very well with Harbeths and producing a still smooth but more neutral final sound.

PS someone mentioned the Vinnie Rossi, and I heard that as well at the show.  Although the speakers in that suite were very meh, it was clear to me that the amp unit was very much worth a second listen.  
I am using Croft integrated phono with my Harbeth 7 and since last week with 30.1.Croft is hybrid design with 1 EC83 in pre section and 2 in phono.Love the result.
I tried many amps with my Harbeth SHL5s but found the Luxman 505ux to be a synergistic choice. 
I tried lots of amp/preamp and integrated with SHL5s. I listen almost entirely to classical music. I bought a Rogue RP1 tube preamp with a Channel Islands E-200S class D amp. The combination sounded better than many more expensive systems I tried, including all tube.