The JRX218S is an 18" compact direct-radiation subwoofer designed to supplement and extend low frequency performance of full-range systems in live sound and music playback applications. The JRX218S is driven by
a massive JBL 18" woofer with a stamped steel frame and 3" voice- coil. It’s rated at 350 watts(continuous) and 1400watts (peak)–based on JBL Professional’s 100 hour extended life test.
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 36 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.
350 W / 1400 W
Frequency Range (-10 dB)
34 Hz - 250 Hz
Frequency Response (±3 dB)
53 Hz - 250 Hz
Recommended Amplifier Power
350 W to 700 W into 4 ohms
133 dB peak, @1 m (3.3 ft)
Dimensions (H x W x D)
605 mm x 508 mm x 551 mm (23.8 in x 20.0 in x 21.7 in)