hey everyone. i recently brought a 1999 1 litre k11 as a run around while i restore my mini but iv already fallen in love with it im going to swap the head unit out of my mini and was eyeing up these http://www.caraudiodirect.co.uk/speakers/component-systems/6-5-inch-comp-17cm/alpine-spg-17cs i was wondering if they'd be best with an amp and which amp ? im a bit of a newbie when it comes to amps