B&C 18TBW100-4 18" Professional Subwoofer 4 Ohm

Manufacturer Part Number: 18TBW100-4

Choose the 18TBW100-4 18" subwoofer from B&C Speakers for serious professional audio applications where extremely high power handling and low distortion are required.

Key Features:

• High BL motor for impressive control and massive output
• Split winding 4 ohm 4" voice coil handles 1,500 watts RMS
• Aluminum demodulating ring reduces distortion
• Under-spider venting for maximum power handling
• Capable of producing big sound when loaded in small boxes

B&C 18TBW100-4 18" Professional Subwoofer 4 Ohm

B&C's 18TBW100-4 18" professional woofer features 3,000 watts of continuous program power capacity, thanks to its 4" split winding copper voice coil. A frequency response of 30 to 1,000 Hz and 57 mm of peak-to-peak excursion (before damage) combine to make this one of the top woofers in its class. The 18TBW100-4's double silicone spider with optimized compliance keeps the driver controlled, while the ventilated voice coil gap reduces power compression. Low distortion is achieved by using an aluminum demodulating ring in the driver's magnetic circuit. Great performance is realized in vented boxes as small as 7 cu. ft.

Product Details

BrandB&C SpeakersModel18TBW100-4Part Number294-6008UPC848864009841Unit of MeasureEachWeight37.95

Product Specifications

Nominal Diameter18"Bolt Circle Diameter17.4Moving Mass Of Diaphragm (Mmd)268.2Power Handling (RMS)1500 WattsPower Handling (MAX)3000 WattsImpedance4ΩFrequency Response33 to 1,000HzSensitivity96dB 2.83V/1mVoice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)33HzDC Resistance (Re)3.2ΩVoice Coil Inductance (Le)1.64mHMechanical Q (Qms)6.23Electromagnetic Q (Qes)0.34Total Q (Qts)0.32Compliance Equivalent Volume (Vas)6.41ft³Mechanical Compliance of Suspension (Cms)0.088mm/NBL Product (BL)22.8T·mMaximum Linear Excursion (Xmax)12mmSurface Area of Cone (Sd)1210cm²

Materials of Construction

Cone MaterialCoated PaperSurround MaterialClothVoice Coil Wire MaterialCopperVoice Coil FormerFiberglassBasket / Frame MaterialCast AluminumMagnet MaterialFerrite

Mounting Information

Overall Outside Diameter18"Baffle Cutout Diameter16.6"Depth9.5"# Mounting Holes8

Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)

Sealed Volume1.26ft³Sealed F381HzVented Volume2.56ft³Vented F350Hz