Totem Owners....

Hi all,
Just auditioned a pair and loved the sound of Totem. Very simple, unique, and musical.
Q1: What's the guide line, or how can I determine which model to buy.
Q2: What's destine sound unique of each one from Arro, Sttaf, Hawk, to Forest, Model-1 and, finally, the Mani-2?

Room: 16' x 16' x 8' ceiling
Amp: 180wpc Anthem A5
Pre-pro: Anthem AVM-30
Music type: Jazz, classical, music concert, instruments, Michael Buble, Eva Cassidy, Katie Melua, etc.
Volume: Midium Low. Listening time normally from 1am-4am.