Hi Artemus_5; There already appears to be distinct disagreement about subs. I don't know how low the Sonata speakers are rated for-- and that is important here, but if rated to 30 HZ or so, a powerful solid state amp might be all you need, but it would be my inclination to go for good quality sub(s) if you really lust after deep, tight bass.
I recently got Vandersteen 5 speakers that have true built in subs that go to 22 HZ, are very tunable, and have built in 400 wpc amps to drive the subs. I have never heard such great bass, and I love them. But a friend uses REL subs with MG 3.6s very successfully. I think Karls (above) gives good advice.
Why don't you audition some systems with subs and see what you think? Good Luck. Craig
I recently got Vandersteen 5 speakers that have true built in subs that go to 22 HZ, are very tunable, and have built in 400 wpc amps to drive the subs. I have never heard such great bass, and I love them. But a friend uses REL subs with MG 3.6s very successfully. I think Karls (above) gives good advice.
Why don't you audition some systems with subs and see what you think? Good Luck. Craig