Devialet on the wall

[Hifi_swlon]

Could someone please clarify what type of screws you need to fit the slots under the feet?

I have a spirit level. I can screw 290mm apart. I'd rather not buy an expensive piece of perspex.

See above. Yes, it's expensive for a 'piece of Perspex', but it allows a little tolerance for getting straight, and the mounts are all perfectly placed. It's also invisible, and the extra thickness gives better clearance for the cables. I found it quite tricky to plug some things in when I used screws. If I did it again I'd use batons that were hidden, and would be easier to position, then screw into the batons to mount the D. That would give better clearance but presumably be a slightly weaker solution. Then again, four screws can hold a fair amount of weight.