Investing in a sub that can properly reveal low frequencies, with little distortion and plenty of definition, can be ruinously expensive. The best units can be huge too, as when it comes to bass, bigger is better right? Acoustic engineering is, of course, a bit more complex than that. That explains how Kali Audio has managed to wring such exceptional bass tone from its WS-6.2 sub, an inexpensive, powered, compact unit with modest, horizontally-opposed 6.5” drivers.