I measured one of the Marten Mingus Septet Statement Edition loudspeakers, serial number 25080551A, in Jim Austin's listening room, with the speaker driven by the Gryphon Antileon Revelation amplifier he had in-house for review. I used DRA Labs' MLSSA system and calibrated DPA 4006 and Earthworks QTC-40 microphones with an Earthworks microphone preamplifier to measure the Mingus Septet's farfield frequency behavior. I used the Earthworks QTC-40 mike, which has a small, ¼"-diameter capsule, for the nearfield responses.