Son destroyed my old Polk Audio 10b Monitors. Bought new Martin Logan Clarity speakers, but they lack the definition and presence that I heard in the store connected to a Naim amp when played through my old, stock Hafler DH200 amp. Am now shopping for a new amp and would like suggestions -- particularly from those with the same speakers (or experience with them). Currently am looking at Naim, NuForce, Arcam, (possible rebuild of Hafler?). Suggestions Please.