Ikea Besta shelf sizes

[pioneer2000]

Anyone with a Besta... what height are each of the internal sections? Can the shelves be freely adjusted?

Also, what width are each section? Looking to fit a Kef R200C in the middle shelf but as it's 170mm tall x 530mm wide, I can't find any stands to fit it!

 

[pioneer2000]

Thanks! So even less left once you take into account the shelf? I'm not fitting my centre speaker and amp in one section then, as I think they're 17cm and 18.5cm respectively.

With it being only 38cm deep, I assume you can cut a section out of the back to fit a deeper amp in?

Is the Uppleva tv cantilever mount available in the UK at all?