I was going through some of the options on my Yamaha RX-V2200 and I found Dynamic Range. So, my question is - What is it and what should it be set to?

HP D-Range
SP D-Range

Settings: Max - Standard - Min

Receiver: Yamaha RX-V2200
Main: Axiom m80
CC: Axiom VP150
Surround: Axiom QS8
Sub: SVS PC13-Ultra