The BX10s active subwoofer is ideal for any monitoring environment requiring an accurate low-frequency response down to 20Hz. Comprising a 10” composite driver, 240-watt internal amplifier, and a variable 50 to 200Hz crossover, the BX10s delivers tight, clean bass in a compact chassis—perfect for project studios where space is often at a premium. The BX10s is suited perfectly for either two-channel stereo or multichannel surround monitoring environments and is designed to integrate with any powered direct-field studio monitors, including the M-Audio BX5a and BX8a active reference monitors. The BX10s even includes a subwoofer bypass function so you can judge how a mix will sound without a dedicated subwoofer—controllable via the included sustain pedal.