Odd that the regular and HP drivers are readily available (according to the specifications section) but there isn’t a mechanism for actually selecting HP drivers within the ordering process. For the 660 and the 880 models.
It appears the same cabinets and drivers are used for 60/660, 80/880, 100/1100. With the LFR version having rear firing drivers and extra vortex ports.
It’s not over simplification, what I have stated about the M-100 and the LFR-1100 which first was introduced as a passive speaker. Remove the rear drivers and vortex ports you’re left with a M-100.
It sounds like the actives are a different animal all together.
