Yep, a Lack shelf sitting on top of some old shitty little bookshelf speakers. I used blu-tack between all touching surfaces so it grips and also doesn't rattle with the big speakers.

I can't remember the make, but it's a gaming surface. Basically, one big giant thick mouse pad. I love it, it's fantastic. Difficult to explain why, but once you use one, you'll probably love them too. Got it last year, this was one of the only makes, but now there are loads.

This was my previous set up. Sadly, now in a tiny flat so can have neither the size of the desk, nor the power of the speakers.