hi, my current setup:
1) DLS R6A 2 way component
2) DLS CA-51 5 channel amp
3) DLS KW-12 12" subwoofer
4) Stock HU
5) Audison Bit Ten (should I?)

can give some comment and advice for my setup? i listen to many types of song (r&b, sentimental, trance, etc)
what is the differences if change from passive to active setup? many said it will sound better but better in terms of what? im not going to change HU atm, but the audison dsp will be a choice.