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 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 W (peak), 300 W (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, .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.
Specifications:
Power Rating : 300 W / 500 W
Frequency Range : 38 Hz - 300 Hz (-10 dB)
Dimensions (H x W x D) : 597 mm x 516 mm x 597 mm (23.5 in x 20.3 in x
23.5 in)
Frequency Response : 55 Hz - 300 Hz (±3 dB)
Maximum SPL : 123 dB
Weight : 40.4 kg (89 lb)
Low Frequency Driver : JBL 2043-G
Input Connectors : XLR/M (x2) (line level, balanced): .25 in TS phone
jack (x1) (speaker level)
Output Connectors : XLR/F (x2) (Selectable, Thru or High Pass)