L-8028 Dual 18 inch High Power Pro Subwoofer Box - Buy 18 inch subwoofer, high power subwoofer, s8028 subwoofer speaker Product on Sanway Professional Audio Equipment Co., Ltd.
the box Speaker 18-500/8-A – Thomann United States
Showtime Electronics
the box pro DSP 18 Sub – Thomann United States
EM-1krms - EM Audio 18" Custom Hand Built Subwoofer (1000 watts) - EM Audio Subwoofers