B&C 18TBX100-4 18" Professional Subwoofer 4 Ohm

Manufacturer Part Number: 18TBX100-4

The most powerful 18" in the B&C ceramic product range with its 1,200 watts RMS power handling, the 18TBX100-4 defines the low frequency reproduction "state of the art".

Key Features:

• 1,200 watts RMS power handling
• 4" copper wire voice coil wound inside-outside on fiberglass former
• Double spider suspension system maintains linearity
• Dual demodulation rings in the magnet system
• Very low distortion-nothing but deep, clean bass

B&C 18TBX100-4 18" Professional Subwoofer 4 Ohm

The industry-standard B&C Speakers 18TBX100-4 features a 1" long/4" diameter copper wire voice coil with high thermal capability, and a ventilated magnet assembly, both of which contribute to low power compression. A very low distortion figure is obtained using a double spider design and dual demodulation rings in the magnetic path. The 18TBX100-4 is fortified by a proprietary water-proof cone treatment that facilitates safe use in adverse climatic conditions. This benchmark pro subwoofer driver is found in many famous manufacturers' well-established loudspeaker enclosures.

Product Details

BrandB&C SpeakersModel18TBX100-4Part Number294-6009UPC848864009858Unit of MeasureEachWeight31.95

Product Specifications

Nominal Diameter18"Bolt Circle Diameter17.3Moving Mass Of Diaphragm (Mmd)230Power Handling (RMS)1200 WattsPower Handling (MAX)2400 WattsImpedance4ΩFrequency Response35 to 1,000HzSensitivity98dB 2.83V/1mVoice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)30HzDC Resistance (Re)3.7ΩVoice Coil Inductance (Le)1.73mHMechanical Q (Qms)7Electromagnetic Q (Qes)0.33Total Q (Qts)0.31Compliance Equivalent Volume (Vas)9.04ft³BL Product (BL)22T·mMaximum Linear Excursion (Xmax)9mmSurface Area of Cone (Sd)1212cm²

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"Depth8.2"# Mounting Holes8

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

Sealed Volume2.63ft³Sealed F377HzVented Volume4ft³Vented F347Hz