A system and method enabling comparative and interactive preview of the effects of different operational settings to facilitate adjustment of a media-playing set includes providing a memory to store a test sample for each control item and a demonstrational tool to generate a plurality of preview items for simultaneous presentation on the display while the settings of the control item are being adjusted, such preview items being based on the test sample such that each preview item reflects the effect on the sample caused by selection of a respective setting for the control item. A system and method enabling expanded interactive preview of the effects of operational settings similar to the above except the test sample is provided for grouped pairs of the control items and each preview item reflects the effect caused by selection of different combinations of settings for the control items in this grouped pair.