Hi Minori - thanks for some brilliant input! I will definitely be using this advice as a reference when I finally get to hooking up monoblocks. I am using a Pass Labs X250.5 with a Parasound JC2 preamp with Magnepan 1.6QRs and the sound is great. I have no audiophile friends to compare systems with so I don't know how great it can be but I am on that mission. I recently bought a pair of Parasound JC1s because they were such a great deal even though there is a small problem with one ( a loose connection somewhere) and am reluctant to hook them up until Parasound gives the amp a look over, this is convenient as I live in San Francisco where Parasound is based. I am hoping I get an increase in sonics afterwards, if not, the experimenting is all part of the fun and I get to see first-hand the benefits.