Not sure I understand. What is the difference between "Twin Axiom 80" and "Axiom 80" ? I haven't heard of "Twin Axiom 80" -- it sounds like a different speaker rather than just more than one M80...

Thanks...

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