CSW218

Double 18s. Double Trouble.

Portable Subwoofers CSW

Where to buy

Description

Double the drivers, double the devastation—the CELTO CSW218 unleashes a monumental 3000W RMS (12000W peak) with clean, chest-thumping low-end that plunges effortlessly down to 34 Hz. This high-performance vented dual 18" subwoofer is built for uncompromising bass reinforcement in large-scale touring systems, festivals, arenas, nightclubs, and premium permanent installations. Perfect for stadiums, concert halls, multifunctional venues, theatres, and high-energy clubs where visceral, articulate sub-bass demands absolute authority. Twin premium custom CELTO high-excursion 18" drivers with 4" voice coils deliver exceptional throw and control, even under the most punishing conditions. Heavy-braced birch plywood cabinet with tongue-and-groove assembly ensures vibration-free dynamics and touring-grade reliability night after night. Boasting 100 dB sensitivity and a calculated 141 dB peak SPL, it transforms venues into seismic zones with surprisingly efficient amplification. Dual M20 threaded pole mounts and genuine Neutrik Speakon connectors simplify stacking, rigging, and system integration. Textured waterborne black finish and robust construction make it as tough as the bass it produces. The CSW218 proves that when you need low end that truly moves the crowd, two eighteens are always better than one—no apologies needed.

Key Features

3000W RMS power capacity
Clean and deep reproduction
Premium custom CELTO high excursion drivers
Heavy braced, vibration free birch plywood cabinet
Touring grade gloss-free black painting

Applications

Portable Professional sound, on demand

Technical specifications

Speaker type	Multi-purpose vented Subwoofer
Power Handling (AES standard)	3000 W RMS / 12000 W Peak
Nominal impedance	4Ω
Average sensitivity	100 dB / 1 W / 1 m
Maximum SPL (calculated)	135 dB RMS / 141 dB Peak
Frequency response (-6 dB no preset)	34~1500 Hz
Nominal directivity (-6 dB)	Omni in usable range
Cabinet	Exterior grade Birch Plywood Heavily braced with Tongue & Groove
Cabinet finish	Textured Waterborne Black coating Acoustic PU foam behind Front grill
Flying hardware	No
Mounting hardware	2pcs M20 thread socket
LF	2x 18" CELTO 18SW1500-8
Woofer Chassis	Die Cast Aluminium
Woofer Voice coil	4" / 100 mm long throw
Crossover	No, active mode only
Connectivity	Genuine NEUTRIK 2pcs Speakon NL4MP
Speaker size (HxWxD)	580 x 1 100 x 740 mm
Speaker Weight	80 kg
Shipping information	92 kg 680 x 1 200 x 840 mm
Accessories	CSW218-SBAG (padded cover bag) CPC-70 (pole bar with crank) SUBWHKIT100C (castor wheel kit)

Product files

Name	Category	Type	Size
CELTO_CSW218_A0_20250717_WEB_CAD CELTO_CSW218_A0_20250717_WEB_CAD	CELTO_CSW218_A0_20250717_WEB_CAD	PDF	95.7 KiB	Download
CELTO_CSW218_A0_20250717_WEB_CAD CELTO_CSW218_A0_20250717_WEB_CAD	CELTO_CSW218_A0_20250717_WEB_CAD	DWG	1.8 MiB	Download