The SB16 Ultra is a powerful, high-end reference subwoofer for home listening. Its full-size 16-inch high-excursion SVS driver lets its frequency response extend as low as 16 Hz, and delivering higher output levels and less distortion than even SVS' other subwoofer offerings thanks to its large 8-inch edge wound voice coil. The SB16's amplifier provides 1500 watts of RMS power from an Ultra Sledge STA-1500D DSP amplifier with a MOSFET output stage. Wireless control via the SVS subwoofer app adds additional This subwoofer is customisable, powerful and articulate, offering low-end support like no other.