Pioneer TS-WX010A active subwoofer.

Pioneer TS-WX101A is the smallest Active Subwoofer in its Active Subwoofer category. 

Designed to be installed in the passenger foot space area, TS-WX010A uses a Symbolic Trapezium design that can be easily installed vertically or horizontally.
TS-WX010A gives a new sound experience, thanks to Pioneer's BASS SOUND CREATOR feature that offers impactful and high quality bass sound, a built-in CLASS-D amplifier.
Furthermore, by installing in the passenger foot space area, it can improve the front sound imaging, by creating a natural sound connection with the front speakers, allowing you to experience a new sound experience.

Frequency control (50 Hz to 125 Hz), Gain control, Input Mode (High/Low), 50 W RMS Power...