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array measurements

Basic Setup

All measurements were taken in same conditions, all three arrays were put on 120*20 cm open baffle to assure equal conditions for all arangements. Measurement microphone was RadioShack's SPL meter connected to computer sound card. It's output is not compensated yet.

Open baffles were put allmost to the wall, which is easy seen on freq. graphs. Distance from mic to speakers was to small for any serious listening setup, but it was quite good to show driver interaction in nearfield conditions. All arrays are composed with 6 drivers, bessel array is longer for dimension of one driver unit.

Upper graph shows response at 1 m from array, second one shows response at 2m.