Excellent condition, shows signs of wear but in excellent working order. 

Behringer Eurolive Professional B1800X: This subwoofer is designed to provide powerful, rich bass with a frequency range of 40 to 300Hz. It features a long-excursion 18" bass driver capable of handling up to 1600 Watts of power. The B1800X Pro also includes a built-in switchable crossover for passive or bi-amping operation. It is 700mm in height and has an impedance of 8Ω.