671 and 771 for sure, probably more. The Axiom folks steered Mark (chips) to the 671 -- I suggested he go with the 771 because it looked to have a more upgradeable DSP for the future.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8