Used JBL LSR310S Subwoofer

Used JBL LSR310S Subwoofer in good condition—an ideal low-end upgrade for your studio monitors. Featuring a 10-inch long-throw driver with JBL’s Slip Stream Port for deep, accurate bass down to about 27 Hz, it delivers punchy, controlled low frequencies without strain. With balanced XLR/TRS inputs and outputs plus an adjustable crossover and polarity switch, it integrates easily into most monitoring setups. Reliable performance and solid build for serious mixing and production.