monoblock? it hought mine was 2ch..... wouldn't mind pairing at the right price...
near mint malibu100, circa 1991, which is actually a 1990 metrosound mpx402 (400watt-2ch) stuffed in a different heatsink. i don't have a tonne of pre-1995, big brand amps, but i have amps from 1995/6- 2k coming out my bum....
Diamond Audio D5 300.2 rated 75x2 but does more. I have run it and its def more than 75. the 4 channel 600.4 was reviewed and it did significantly more than rated. made in USA.