JBL LSR310S 10-inch Powered Studio Subwoofer Designed as an adjunct to JBL's LSR series, this active studio subwoofer adds the extra low-end thump that is so critical to a lot of modern music production. Low end is essential to EDM, but low-end contour and definition is likewise essential. The LSR310S subwoofer incorporates JBL’s patented Slip Stream™ Port working in concert with a custom 10" down-firing driver and a 200 Watt amplifier to add deep, powerful bass to any studio monitor system. A JBL first, the XLF Extended Low Frequency setting lets you hear your tracks with the augmented bass tuning used in today’s dance clubs. The LSR310S striking appearance is highlighted by a distinctive glossy black flange of the front-mounted Slip Stream™ Port. The handsome compact black enclosure is designed to fit neatly into small recording and post production studio environments Features: Powered Studio Subwoofer designed to provide top-notch low end to modest-sized control rooms Down-firing 10″ speaker and Slip Stream port provide tight and focused low end Selectable crossover and detented volume control lets you tune your system precisely XLF Extended Low Frequency setting lets you get deeper, more resonant bass sound Powered by a highly efficient 200W (RMS) Class D amplifier Specifications: Driver: 250mm (10-inch) High-Excursion, Down-Firing Low Frequency Extension: 27 Hz Max Peak SPL: 113 dB Amplifier Power: 200 W CLass D Crossover Settings: 80 Hz, XLF, External Inputs: 2 x XLR, 2 x TRS Balanced Outputs: 2 x XLR Maximum Peak Input Level: +20.3 dBu AC Voltage: 100-240 VAC +/- 10% 50/60 Hz Dimensions: (HxWxD) 17.65" x 15" x 15.65" 34.3 lbs