I used DRA Labs' MLSSA system and a calibrated DPA 4006 microphone with an Earthworks microphone preamplifier to measure the Volti Audio Lucera's farfield frequency behavior and dispersion. I used an Earthworks QTC-40 mike for the nearfield responses and Dayton Audio's DATS V2 system to measure the impedance magnitude and electrical phase angle. I took a full set of farfield measurements with the microphone at my usual 50" on the tweeter axis, which is 36" from the floor.