There are lots of actives, there are good used ones for cheap, and some decent cheap ones...
Active crossovers go ahead of the amp. you would need a second amp. and use your current amp for lows or highs depending on it's power and sonic qualities.
If this is too complex, just ask here...the glossary of terms at least will be useful
http://sound.westhost.com/bi-amp.htm
Don't worry about dumb questions, the dumbest question is the one not asked. We are here to help.








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