bass became more natural sounding. music flowed more effortlessly. overall much more natural and relaxed type of sound. very worth it to me. (my rig is on a wood floor, suspended on joists, with crawl space underneath. best sound with these vs. when i had them spiked or on various isolation products.) if you are unsure of how/why they work, read the white papers at their web site. and if still confused or have questions, call and speak with robert. with me, he was always very willing to talk about the theories and practice of these devices.