The filters before already came in damped and undamped varieties. Of the 7 filters available for the vyrus and PM4, the colors were gunmetal, gold, silver, and pink. The gunmetal was its own thing, but there were two sets each of gold, silver, and pink. With one being damped and one undamped. Each had a little tuning port on them to tune the bass response, and that was the same per color, while the damping material was to tame treble. Essentially giving two levels of treble, and 3 levels of bass, +1 extra level of bass for the gunmetal. So the filters are honestly what I am most interested in. But I am sure all this information will be showing up shortly.