In 1993 I bought a pair of Tannoy C6 bookshelf speakers. They were on sale for $199. That was pretty cheap, because they were white, yes white as snow (black grills). So I took the drivers out and spray painted them gloss Black, belive it or not I used Tremclad. It worked great. I got a nice piano black finish for a couple of bucks!
However I agree with adrian, I would try it on the bottom of the speaker first. One thing to ruin $200 book shelf speakers, something else to ruin a full range floor stander like the M80.
Last edited by Worfzara; 09/15/10 10:18 PM.