Sure. Removing tube cages or the lids on tube amps/pre-amps can accomplish 2 things, one all the time the secord some of the time. 1) Improve heat disapation, 2)Eliminate surfaces which can or do resonate without having to add weight to damp them. I would only avoid doing this on CDP's because of the additional dust build-up possibly effecting operation of the laser. Removing lids on SS stuff - I would only do this if I had to to damp a transformer hum. Can't think of much other benefit, but perhaps some ss experts can sign in with their views.
