Used JBL SRX818SP Powered Subwoofer

Get powerful low-end performance with this used JBL SRX818SP 18" powered subwoofer, in excellent condition and fully tested for reliable operation. Designed for professional sound reinforcement, it features a built-in 1000-watt Crown amplifier and advanced DSP for precise tuning and control. With a frequency response of 29Hz – 150Hz and a maximum SPL of 135 dB, this subwoofer delivers deep, punchy bass ideal for live events, DJs, and installed sound systems. The rugged plywood enclosure, durable finish, and tour-grade components ensure long-lasting performance on the road or in fixed installations. This high-output sub is ready to elevate your low-frequency sound experience.