BAT VK 31 SE vs BAT VK 32 or BAT VK 32 SE

Hello,
just wanted to get an idea as to how they sound?
Which are the differences in the sound reproduction ?
Paired with BAT VK 6200.
I own BAT VK 6200, B&W 802 Nautilus , Marantz SA 11.

Any advice is appreciated.
Thanks.
Martino.