Binaural masked thresholds from 50 cps to 4800 cps were measured using low‐frequency (10, 15, 25, 30, and 50 cps), high‐intensity (100, 115, and 130 db SPL) pure tones. The results obtained for 5 listeners demonstrate a broad masking spread with masking peaks for 130‐db SPL pure tones.