The woofers should have minimal movement because those CV's roll off the bass around 40hz. If you want to see woofers move get a pair of subs.
Buy or stay with?
I'm playing 2 Yamaha m40 amplifiers I have cerwin xls28 4 of them . I was thinking about buying newer amps like bryston 4bst amp Yamaha MX 800 it seems that these speakers are asking for straight power if my amps are not tuned up the woofers don't move what should I do or any ideas