
12mm MDF
12mm MDF construction doesn't really "ape" a high end 'speaker. I've never seen a high end 'speaker constructed from anything less than 18mm (assuming it's made of plain MDF in the first place). Hell, even my £200-odd Tannoy Reveals are made from 18mm with a slab of 25mm on the front.
And before anyone jumps down my throat - I'm just saying, not passing judgement.