I have a new Fusion PP-AM15001 monoblock amp for sale. I bought it on Oct. 13th, the amp was installed on Oct. 18th. It puts out 550w rms @4ohms, 850w rms@2ohms, and 1500max. It is ONLY 2ohm stable. I bought it being told it was a perfect match for my Fusion NV-12, which is dual 2ohms...NOPE...