Honestly....the whole set up sounds amazing!!
The sound of the MA speakers is completely different to the KEFS (and so much better IMO)
The depth of the sound from the speakers is great (it defies logic from its slender size)...and the gold sub plays its part in providing impact!!
The Yamaha 3010 amp works in perfect harmony with the speakers and sub.....and the bonus is that the model is heavily discounted.
I am very happy....movies have impact....music fills the room ...the whole 5.1 set up looks great.....and even the wife is impressed!!
If your reading this, and researching 'on wall' speakers, I dont think you need to look further that the Monitor Audio Shadow series.
My set up
2 x S50 speakers
2 x S25 rear speakers
1 x centre speaker
Monitor Audio 12" GSW12 Subwoofer
Yamaha 3010 AV reciever / amp
Sony TV KDL-55HX853
Panasonic BDT-500 blu ray