If it's good enough for you, the NAD c160 has two pre outs. I have it , and I like it. It can be had in your price range.
Preamp/Subwoofer connection question....
When looking for a pre to mate with a sub what does one look for? Pre-out connections I assume...or are there other ways to connect? Also...any decent ss pres with sub connections in the sub $500 area?