12” active subwoofer - $200

The Behringer Eurolive B1200D-PRO powered subwoofer will add some serious low end to your live rig.
A single B1200D-PRO kicks out enough bass for a jazz combo in a dinner club, and it can run all night without heating issues, thanks to its efficient Class D amplifier.
On top of that, the B1200D-PRO's compact design makes it ultra-lightweight and easy to transport.
Make no mistake, the 500-watt Behringer Eurolive B1200D-PRO powered subwoofer's 12" long-excursion low-frequency transducer will give you the definition, clarity, and low-end punch you need to keep the party going.