Wisdom Audio S55i-f/c In-Wall (2×4) RTL Subwoofer with Port Extension Kit (Each) Bluetooth Designed by legendary speaker engineer

Designed by legendary speaker engineer Greg Timbers

Smart listening technology to enhance your listening: The WH-1000XM4 headphones use an array of smart technologies to create a seamless

detailed sound brimming with warmth and musicality

The hour and minute hands cover a twelve and sixty minute arc respectively

Wisdom Audio S55i-f/c In-Wall (2×4) RTL Subwoofer with Port Extension Kit (Each) Bluetooth Designed by legendary speaker engineerThe S55 f c can be mounted in ceiling, in wall, under risers, in closets, and on floors. It is a rare example of a custom centric design that offers competitive results versus the finest freestanding options. The S55 f c is a strong performer, featuring the quickness and tonality all our RTL subwoofers are known for, with bass extension to 40Hz. Its size makes it well suited to being custom installed and thereby hidden behind its small paintable grill