Why you need the Meinl Subwoofer Jumbo Bass Cajon Frontplate - Walnut: Meinl Subwoofer Jumbo Bass Cajon features a forward projecting sound port in place of the traditional rear facing style and an internal reflex channel. This results in an enhanced bass note projection, particularly desirable for live and unplugged situations. The Meinl Subwoofer Jumbo Bass Cajon produces immense deep sounds. Features: • Super low frequency • Forward projecting sound port • Internal snare wires • Adjustable top corners • Eco-friendly medium density fiberboard with appliqué graphics