I inherited a samsung univaersal player for free. it does not do bass management for SACD. will i ruin my QS8's or VP150 by playing SACD through them.

No. In general there is no bass managment for sacd

Originally SACD assumed 5 full range speakers. Later the SACD proponents came to their senses and realized virtually all their customer base had 5.1 equipment with subwoofers, hence required bass management.

However the content producers prohibited digital SACD output, so your receiver's digital bass management won't work. You have two options:

(1) Get a SACD player with bass management
(2) Get an Outlaw ICBM http://www.gspr.com/outlaw/icbm.html

Your speakers will be completely fine. No worries there.