JBL 2241H 18" Subwoofer

When raw, chest-thumping sub-bass is the mission, the JBL 2241H answers with authority. This 18-inch powerhouse was built for venues where low end needs to be felt as much as heard—cinemas, concert halls, touring rigs—delivering deep, controlled output with the rugged reliability JBL’s pro drivers are known for.

Specifications

Type	18" (460mm) Cone Subwoofer
Voice Coil Diameter	4 inches (100mm)
Magnet	Ferrite (SFG - Symmetrical Field Geometry)
Nominal Impedance	8 Ω
Power Handling	400W continuous
Frequency Response	20 Hz - 1.5 kHz
Sensitivity	95 dB/W/m
Resonant Frequency (Fs)	~22 Hz

Design Features

18-inch Diameter: A cavernous cone area moves serious air, ideal for seismic low-frequency reproduction
SFG Magnetic Circuit: JBL’s Symmetrical Field Geometry minimizes flux modulation, keeping distortion in check even at full throttle
High Power Handling: Rated for 400W continuous, the 2241H thrives in high-demand environments without breaking a sweat
Extended Excursion: Engineered for long Xmax, it digs deep into sub-bass territory with precision and control

Applications

Cinema subwoofer systems
Large venue sound reinforcement
Concert touring subwoofers
High-end home theater

Enclosure Design

For optimal performance, JBL’s official enclosure guide calls for a carefully tuned bass-reflex design. Here’s the blueprint they recommend:

Application	Subwoofer
Chart Reference	#13
Enclosure Volume	10.0 cubic feet (283 liters)
Tuned Frequency	40 Hz
Internal Dimensions	32.0" H x 26.1" W x 22.6" D
Vent Area	75.4 sq in (6x 4" ducts)
Duct Length	5.5 inches

View the complete JBL Professional Enclosure Guide →

Related Drivers

JBL 2242H - Higher power 18" subwoofer variant
JBL 2245H - Alternative 18" subwoofer design
JBL 2235H - 15" studio monitor woofer

eBay Listings

JBL 2245H 18” Subwoofer 1pc Single Unit in Wood Enclosure w/

$3,500

JBL 2242 HPL SPEAKER SINGLE WITH TERMINAL TESTED WORKING NI

$225

1 pcs ID: 99.2mm 4" for FIT: 18" JBL 2241H, 2243H Woofer bas

$17.99

1 pcs woofer voice coil for JBL2206H,2226H,2241H,2206HPL,222

$11.99

See all JBL 2241H Subwoofer on eBay

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Documentation

Lansing Heritage - Comprehensive JBL specifications, photos, and historical documents
HiFi Engine - JBL manuals, service documents, and brochures
Audio Karma JBL Forum - Community discussions and restoration guides