For trade yamaha active subwoofer yst sw300
12-INCH DRIVER AND 185 WATT AMPLIFIER*
High amplifier power assures enough power to deliver movie theater-like bass effects and the large diameter woofer translates the power into clear bass sound. The YST-SW300 has a frequency range of 18 Hz - 160 Hz.
Swap to other brand 12inch active sub,
Swap to 15inch active subwoofer,
