in series with signal processing 16 a and 16 b respectively the system 10 receives a signal 12 including the two channels 12 a and 12 b processed in parallel the equalization filters 18 a and 18 b process the channels 12 a and 12 b to provide equalized signals 20 a and 20 b provided to speakers 22 a and 22 b the equalization filters 18 a and 18 b are designed to process the channels 12 a and 12 b to provide special sound effect such as a hall sound an open stage sound and other sound effect and or to overcome poor sound environments to provide accurate sound reproduction signals 24 a and 24 b however different listeners have different subjective preferences with respect to bass and treble content of the sound reproduction signals 24 a and 24 b the equalization curves may be selected from a menu provided by an audio receiver equalization curves to overcome poor sound environments may be established by functions built into audio receivers such functions are described in u s pat no 7 769 183 which patent is herein incorporated on its entirely by reference fig2 is a method for contouring the equalization curve 32 see fig3 according to the present invention the method includes deriving a baseline equalization at step 100 selecting a desired equalization contouring a control curve at step 102 multiplying the baseline equalization filter by the equalization contouring at step 104 and applying the contoured equalization to an audio signal s at step 106 deriving a baseline.