D10BX-N is a dual 10" Coaxial musical instrument speaker well matched to electric bass and acoustic instruments of all types. The red dust cap indicates a Coaxial driver that includes a 10" cone for lows and mids a crossover network, and a 1" titanium diaphragm compression driver for extending the high frequency response. It has a damped spring-loaded handle, sturdy rubber feet, and a 15 mm thick birch plywood cabinet covered in our unique Nebula finish making it a very portable, and extremely durable speaker enclosure.