JBL JRX218S 18" 1400W Passive Subwoofer

The JRX218S is an 18" compactdirect-radiation subwooferdesigned to supplement andextend low frequencyperformance of full-range systemsin live sound and music playbackapplications.

The JRX218S is driven by amassive JBL 18" woofer with astamped steel frame and 3" voice-coil. It’s rated at 350 watts(continuous) and 1400 watts(peak) based on JBLProfessional’s 100 hour extendedlife test.

Availability: In stock

18" Compact Subwoofer

The JBL JRX218S is a high-output passive subwoofer well suited for mobile entertainment, AV rental, event production, clubs, and performance venues. The 18" direct radiating driver requires a 1400W (peak) amplifier to deliver a frequency response from 250 Hz down to 54 Hz with a maximum SPL of 133 dB.

The JRX218S is crafted from 3/4" MDF with glued and mechanically fastened joints and features non-resonant handles on each side for ease in transport. The subwoofer sports a 1-3/8" pole cup, which allows the subwoofer to be used as a base for a mid-high speaker cabinet. An 18-gauge hexagon perforated steel grille protects the components from damage.


  • 18 in. compact subwoofer.
  • 350 W (continuous), 1400 W (peak) power capacity.
  • 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.
  • A top mounted, cast aluminum 35 mm pole mount receptacle can receive an optional SS3BK pole to facilitate use of the JRX218S as a base for a midhigh speaker cabinet.
  • Non-resonant, all steel handles are used.
  • Attractive 18-gauge perforated steel grille protects components from damage.


Power Rating350 W / 1400 W
Frequency Range (-10dB)34 Hz - 250 Hz
Frequency Response (±3 dB)53 Hz - 250 Hz
Sensitivity (@1m)98 dB SPL
Nominal Impedence4 ohms
Recommended Amplifier Power350 W to 700 W into 4 ohms
Maximum SPL (1m)133 dB
Dimensions (H x W x D)605 mm x 508 mm x 551 mm (23.5 in x 20.3 in x 22 in)
Net Weight32.2 kg (71 lb)
LF DriverM118-4
InputsNeutrik® Speakon® NL-4 (x2); parallel
EnclosureMDF (Medium Density Fiberboard) covered in black carpet.
More Information
Product Located in Port Moresby Regions
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