Hi Ari-
I had a long, mostly enjoyable search for the right amp/pre-amp combo for my Mani-2's. I finally settled in, very enjoyably, with a Cary CAD-120S Mkii and a Rogue 99 pre. As you probably are aware, the Mani's are quite power hungry. I auditioned several less powerful tube amps all of which had positive attributes, but ultimately left voids I found unacceptable. Once I kicked up to the Cary, I knew I was on the right road. Two pre-amps later and I'm now sitting right where my ears want to be. I did try two non-tube amps, a Parasound A-21 which had wonderful bass control but was too bright for my tastes, and a W4S STI500 which has incredible detail. I still own it and fire it up occasionally. I found the Mani's were not the easiest speakers to pair with tubes if the budget isn't there, but I was patient, bought used and am now very happy (but I'd love to hear some Rogue M-180's).
Jerry