researching models/brands for the future move to separates. Budget is limited (<$1000) so i'm looking strictly at used market. I really enjoy PLII with music and TV so i must have this. Can someone suggest a good entry level preamp with the following;

must have's;
decode DD,DTS,PL II
some form of Bass Management
5.1 (not setup for more)


Don't care about;
video switching
remote
tuner quality
looks or color