I was moving one of my new B&W 603 speakers into position. Oh God, then i glanced over at the speaker before going to bed and saw the bass driver had a substantial indentation in it! About an inch squared in size and 3 mm deep. ********!! I called B&W who advised getting a new driver. However, this was unfeasible so i had a brain wave to use sellotape on the alluminium bass driver and try and suck it back out. To my ammazement it worked quite well. It's far from perfect, as you can see a mark still and theres a small (5mm squared) dip which i can't get rid of, but its very shallow. Overall it's a big improvement. But will this impede the sound at all? Or noticibly? They advised checking to see if they sound different. But it's so hard to tell. Does the driver have to be IMMACULATE to function properly?