I was using the K701's, all the speakers are packed up at the moment.

Don't get me wrong, the soundstage is better with the 4032's without a shadow of a doubt, the location of instruments etc. but it was harder to pick out individual components and follow them.

Though to keep it in context, I can happily listen to either the 2 x 4562s or the 4032 + 4562 combo all day, it's much of a muchness.