recommend a pre-pro that's good for music?

This is for my 2-channel music-only system. I want to incorporate a subwoofer to this system. I'm using a mod'ed Sony scd-c333es sacd and Aragon 8008bb amp into OK speakers and have very good interconnects and speaker cables. I have an active crossover and have tried that. However it seems a simpler approach (usually the best), using less interconnects, is to use a pre-amp/pro. I'm currently using my B&K 1030 for that chore and running the sub off of it. Any suggestions for bettering my performance would be appreciated. Either using the x-over or recommendations for a different pre-pro that would do a noticibly better job. Price is a consideration, but value is the most important. Thanks for any comments and recommmendations and happy listening!