I recently acquired a pair of Quad 22L floor standers that were going locally via ebay auction (£206 bid).
They are in fine nick with only a couple of very minor marks. The finish if Bird's Eye Maple which I was really chuffed with as I like light coloured wood.
Only thing I didn't like were the black grilles so I decided to refurb them in something more turd coloured to match the plethora of wood in my listening room.
Initially I thought the frames were plastic which bothered me as, although I have a lot of relevant upholstery experience, I have never fitted material to plastic frames. Fortunately closer examination revealed that they were actually heavily coated MDF - so panic over :)
Even better, when I finally got around to tackling the job (staple gun in hand...) I discovered they had used a rather neat method for fastening the covering; about 10mm in from the edge is a groove running around the back of the frame and the material was simply pressed into it:
https://farm1.staticflickr.com/955/4...20b3f863d7.jpgold corner by miktec101, on Flickr
So removing it was simply a case of pulling it out of the groove:
https://farm1.staticflickr.com/830/4...17a9f8eba4.jpgold remove by miktec101, on Flickr