The JRX118SP is designed to supplement and extend the low frequency performance of full-range systems in live sound and music playback applications. It is an excellent choice for use with powered full-range speakers or in systems using powered mixers.
Key Features:
- The rugged enclosure is constructed from 19 mm MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for durability and improved lowfrequency performance. The enclosure is covered in black carpet.
Heavy duty, all steel handles are used.
- A top mounted, cast aluminum 35 mm pole mount receptacle can receive an optional SS3BK pole to facilitate use of the JRX118SP as a base for a mid-high speaker cabinet.
- Built-in 500 watt (peak), 300 watt (continuous) amplifier. Controls, connectors, and indicators are clearly labeled with large, highcontrast graphics for easy operation in poorly lit environments.
- Integral, preset limiter prevents clipping distortion. An LED illuminates to indicate that limiting is taking place.
- Line-level stereo inputs are summed before being sent to the subwoofer's internal amplifier. This feature allows the JRX118SP to operate in stereo systems using a single subwoofer.
- An integral crossover also provides balanced, line-level, stereo, highpassed outputs to feed powered satellite speakers or an external amplifier for passive satellites.
- A speaker-level, TS phone jack is provided. This input is useful in applications, such as those employing powered mixers, in which it is more practical to bring a full-range, speaker-level signal to the subwoofer amplifier.
- The JRX118SP is an 18 inch directradiating powered subwoofer. A built-in 500 watt (peak) amplifier accepts stereo or mono line level inputs via balanced, XLR connectors as well as single channel speaker level input via a 6.5 mm phone jack.
- Integral signal processing includes a stereo crossover and limiting for the internal amplifier.
- A pair of XLR output connectors may be used to pass the input signals to another system or to send a high-passed, line-level stereo signal to a pair of powered, full-range speakers.
Specifications:
- System Type: Powered, 18" compact subwoofer
- Frequency Range (-10 dB):1 38 Hz - 300 Hz
- Frequency Response (¡¾3 dB):1 55 Hz - 300 Hz
- Nominal Impedance: 4 ohms
- Rated Maximum SPL2: 123 dB peak, @1 m (3.3 ft) at 500 watts
- LF Driver: 2043-G
- Amplifier Power: Continuous: 300 watts with < 0.2% THD Peak: 500 watts
- Input Connectors: 2 x XLR/F, balanced, line level 1 x ¨ù" phone jack, speaker level
- Input Impedance: Nominally 20k Ohms, electronically balanced
- Input Sensitivity: 0.5 Vrms for 300 watt output (SUB LEVEL control fully clock-wise)
- Maximum Input Level: INPUTS A & B: +4 dBu (nominal), +22 dBu (max.), one
channel driven
- Output Connectors: 2 x XLR/M
- Crossover: LPF: 100 Hz, 24 dB / Oct
- Infrasonic filter: 25 Hz, 18 dB / Oct
- Required AC Mains: 230V - 240V
- AC Line Current: 120 volts: 1.4 A at ¨û power with sine-wave input, 3.6 A at max. power with pink noise input
- Power Consumption at Idle: No more than 20 watts
- Dimensions (H x W x D): 605 mm x 508 mm x 592 mm (23.8 in x 20.0 in x 23.3 in)
- Net Weight: 40.4 kg (89 lb) including casters
Full Technical Specifications available on www.jblpro.com/JRX/JRX118SP.htm