I plan to buy a receiver for my speaker system. My budget is about 500 bucks.

My speaker configuration is:

Main: M22ti
Surrounds: QS4
Center: B&W VM1
Sub: Definitive ProSub 60

Which receiver can you recommend me within my budget?

Arcam AVR300
M22ti
QS4 with FMS QS Stand
VP100
Definitive ProSub60