Wilson Audio CUB.

The Wilson Audio CUB (Center Unitized Bass) is designed to provide exceptionally high-quality music reproduction in rooms that are too small to accommodate larger systems. The CUB is also highly suitable for various high-quality home theater applications."

"The CUB features large magnetic motor structures for improved sensitivity and dynamic linearity. The system's sound is more naturally alive sounding as a result. The CUB also integrates separated crossovers for high pass and low pass functions, greatly reducing inter-modulation interactive effects. The character of the music is more realistic at all levels."