JBL JRX118SP 18 inch Powered Subwoofer
JBL JRX118SP 18" Powered Subwoofer JRX118SP/230
SKU: JBLJRX118SP2 MFR: JRX118SP/230
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The JBL JRX118SP is an 18-inch, direct-radiating, 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 ¼"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.
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.
- The rugged enclosure is constructed from 19 mm (.75 in) MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for durability and improved low frequency 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 W (peak), 300 W (continuous) amplifier. Controls, connectors and indicators are clearly labeled with large, high contrast 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, high passed outputs to feed powered satellite speakers or an external amplifier for passive satellites
- A speaker-level, .25 in 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
| Frequency Range (-10 dB) |
38 Hz - 300 Hz |
| Frequency Response (±3 dB) |
55 Hz - 300 Hz |
| Nominal Impedance |
4 ohm |
| Rated Maximum SPL |
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 ¼" 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 |
50/60 Hz (North American units are 60 Hz only); 120 and 230-240 VAC (±10%) units are available |
| AC Line Current |
120 volts: 1.4 A at 1/8 power with sine-wave input, 3.6 A at max. power with pink noise input
230-240 volts: 0.7 A at 1/8 power with sine-wave input, 1.8 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) |
| Weight |
40.4 kg (89 lb) including casters |
