I understand that the K712's offer a more 'fun' sound and deeper bass, but out of the two, which retains the better imaging and positional audio for things like gunshots and footsteps? Many thanks.

My father has recently handed down his pair of Sennheiser HD 565 from 1997 and I love them to bits. However, before he gave them to me, I was originally planning to get a pair of HD 650's. So with that being said, is there a notable difference in sound, especially regarding warmth and bass...