JBL SRX918S 18 Inch Powered Subwoofer Built In DSP and Amplification Loudspeaker The SRX900 Series embodies the advanced performance principles that drive JBL's development of audio products that make a real difference in the world of professional audio. This next-generation family of powered line arrays and subwoofers addresses the growing need for scalable small and medium-format professional sound-reinforcement solutions for rental companies, fixed installations and musicians seeking the ultimate combination of performance and portability. The SRX918S is a single 18-inch active subwoofer designed to complement SRX900 Series full-range sound reinforcement systems. The subwoofer houses a JBL 2279-1 18-inch woofer featuring Differential Drive ? JBL?s dual voice coil, dual gap technology ? to deliver better heat dissipation, lower power compression, and wider dynamic range than conventional single-coil designs. Built-in DSP and amplification offer a plug and play experience while providing consistency and optimum performance anywhere in the world. The SRX918S incorporates a large low frequency port design that improves airflow and reduces audible turbulence, even at high output levels. A new, full-featured software package gives users control of the system on various platforms, including Windows, macOS, and iPad OS. Learn more about JBL Performance. Features: High-performance, high-density system solution in a truck-pack friendly format High-power-handling transducers deliver low distortion, high fidelity, and class-leading output Built-in, passively cooled Class D amplification with a universal power supply Dual Ethernet ports with Neutrik etherCON connectors Supports HARMAN HControl Ethernet User-controllable DSP LevelMax limiting uses sophisticated excursion-control algorithms to protect transducers Rear-panel LCD provides complete access to control features Reinforced 18mm plywood enclosures Specifications: Frequency Range: (-10dB) 35 Hz-90 Hz (Preset: 80 Hz) Coverage Pattern: Omnidirectional or Cardioid Maximum SPL: 134 dB (Preset: 80 Hz) System Type: Active Subwoofer Amplifier Design: Class-D Continous Power Rating: 1,100 Watts LF Driver: (1) JBL 2279G-1, 18 in diameter, 4 ohms, dual 3.0 in diameter voice coil, ferrite Differential Drive Enclosure: 18 mm plywood, Black DuraFlex finish, two integral recessed handles Dimensions (H x W x D): 575 mm x 684 mm x 683 mm (22.6 in x 26.9 in x 26.9 in) Net Weight (each): 44.5 kg (98 lbs) Echotone Music LLC is an experienced E-commerce Audio Visual Equipment dealer since 1998. We take pride in selling Pro Audio gear for musicians, sound engineers, production companies and broadcast applications. Shipping --Pro packed shipped USPS, UPS or Freight Service. Contact us pay for 2 day air upgrade on any unit. We are working hard to get your product ( built if needed), processed shipped. Processing times vary, 2-30 days Returns/Refunds- If there is truly a manufacturing defect a return tag will be provided. Otherwise customer pays for return shipping. Returned items must be sealed/unopened to qualify for a full refund. Refunds are for the Item cost only. Gear returned with out all its original packaging, accessories or shows signs of wear, is subject to an additional service fee. This item is now used and it would be unfair to resell to another customer as new. What products can not be returned? - Clearance items, Custom Builds, items identified as non-returnable, discontinued items, used or NOS items, electronic software downloads, demo gear, computers, vacuum tubes, earbuds, harmonicas raw-frame speakers, drumheads, drumsticks, turntable cartridges, fog fluids