"I would guesstimate that in my room, with the gear I’m currently using, the 3.7s are going down to about 45Hz, with “useable response” into the upper thirties."
HP and Steve Guttenburg also claim a low of about 45 hz.
Poor bass response compared the IIIa (32 to 40Khz +/- 3dB) or the 3.6 (34 to 40Khz +/- 4 dB) both in a "typical" room (from Magnepans own specifications!).
I get flat usable (measured) bass down to 30hz with my Pass Labs 60.5's driving 3.6's, at my listening position.
Low bass is their downside for a $6K speaker!
Why is the low bass worse than the IIIa or 3.6????