Just because a guy can do it doesn't mean he should. Im sure the lawyers and bean counters were apoplectic about endorsing the 4 ohm capability. Can you imagine the warranty work on a bunch of 2 ohm load runners? Being rated for two ohms is entirely different than doing 2 ohms. Just gotta keep...
WOPL'S WILL DO 2 OHMS...Takes some air moving over the heatsinks to keep it cool, but they'll do it.
The only Martin Logans I've spent any time with was the Summits. Pretty wild dips on that one too. The guy tried some underpowered Yamaha and Marantz.
The day those ML's woke the fuck up...