I think all three of the first posts above mentioned are good choices for what you're considering. Onkyo makes some good pieces, as does the old used Sony STRG777ES, Yamaha RXV800/1000 series(but a little less warm bodied than the others, which might play to your advantage with the warm sounding Paradigms..maybe) and used DSPA1/RXV1, as well as the super sounding used B&K 202, Arcam 100 and used Nakamichi AV-10.
Really, there's lots of more than adequate sounding receivers for your speakers.
One thing, I HIGHLY SUGGEST you run even your tower speakers as "SMALL" FOR ALL APPLICATIONS WITH YOUR RECEIVER! It's otherwise not going to sound dynamic, and your speakers can't handle full range DD/DTS. You need the powered sub to handle the bass.
Good luck
Really, there's lots of more than adequate sounding receivers for your speakers.
One thing, I HIGHLY SUGGEST you run even your tower speakers as "SMALL" FOR ALL APPLICATIONS WITH YOUR RECEIVER! It's otherwise not going to sound dynamic, and your speakers can't handle full range DD/DTS. You need the powered sub to handle the bass.
Good luck