Classic Levinson Amps

While I expect to remain cwlondon on my e-mail address, I have finally become a full time, tax paying, resident of NYC again and I am officially in the market for all new gear. I maintain my obsession with ARC and Magneplanars, but I am wondering if the often recommended Bryston monoblocks might improved upon with some classic, Mark Levinson monoblocks. Could anyone please recommend something from the golden age of Mark Levinson amps, before it was only a name pasted onto a Madrigal product that looks more like a space heater? Would this work with an ARC SP-11 pre amp or would there be impedance problems? I would prefer to use longer interconnects and keep the amps close to the speakers? Thank you very much.