Absolute error maps (white = zero error) under head displacements for multiple (11) conditions (columns): (a) baseline (speaker–head distance 2 m, rotation axis at head center, head width 0.15 m, free field), (b) speakers at 1 m, (c) −0.02 m y-offset, (d) −0.02 m x-offset, (e) larger head width (0.16 m), (f) RC1_1000, (g) RC2_1000, (h) RC1_5000, (i) RC3_5000, (j) RC2_1000 (early IR equalization), (k) RC3_5000 (early IR equalization). Subplots A and B depict ITD errors, C and D depict IACC errors and subplots E and F depict ILD errors. Four target ITD–ILD pairs were simulated. IHP denotes initial head position.