B&C 12TBX100-4 12" Woofer — 2000W Program / 4 Ohm

Overview: The B&C 12TBX100-4 is a 12" professional woofer engineered for high-power, low-frequency reproduction with low distortion and controlled excursion. It combines a large 100 mm (4 in) copper voice coil, a vented gap and an aluminium demodulating ring to deliver clean output across 45 - 1500 Hz with 93 dB sensitivity. Key Features: - 2000 W continuous program power capacity - 100 mm (4 in) copper voice coil - Frequency response: 45 - 1500 Hz - Sensitivity: 93 dB - Aluminium demodulating ring for reduced distortion - Double silicone spider with optimized compliance - Ventilated voice coil gap to minimize power compression Electrical & Power Ratings: - Nominal Impedance: 4 Ω - Minimum Impedance: 4.6 Ω - Nominal Power Handling: 1000 W - Continuous Power Handling: 2000 W Mechanical & Materials: - Nominal Diameter: 320 mm (12.0 in) - Voice Coil Diameter: 100 mm (4.0 in) - Winding Material: Copper - Former Material: Glass Fibre - Winding Depth: 25.0 mm (1.0 in) - Magnetic Gap Depth: 12.0 mm (0.5 in) - Flux Density: 1.1 T Design Details: - Surround Shape: Triple Roll - Cone Shape: Radial - Magnet Material: Ferrite - Spider: Double Silicone - Pole Design: T-Pole - Woofer Cone Treatment: TWP - Waterproof: Both Sides - Recommended Enclosure Volume: 40.0 dm3 (1.41 ft3) - Recommended Tuning: 43 Hz Thiele-Small Parameters: - Resonance Frequency (Fs): 44 Hz - Re: 3.6 Ω - Qes: 0.24 - Qms: 6.23 - Qts: 0.23 - Vas: 41.1 dm3 (1.45 ft3) - Sd: 531.0 cm2 (82.3 in2) - Le: 1.74 mH - Mms: 125.0 g - Bl: 22.91 Txm - Xmax: 9.0 mm - Xvar: 11.0 mm - EBP: 183 Hz - % (Distortion reference): 1.42 % Mounting & Shipping: - Overall Diameter: 319 mm (12.5 in) - Bolt Circle Diameter: 299 mm (11.8 in) - Baffle Cutout Diameter: 281.0 mm (11.1 in) - Depth: 135 mm (5.3 in) - Flange and Gasket Thickness: 13 mm (0.5 in) - Air Volume Occupied by Driver: 4.2 dm3 (0.15 ft3) - Net Weight: 11.8 kg (26.0 lb) - Shipping Weight: 12.7 kg (28.0 lb) - Shipping Box: 360x360x200 mm (14.17x14.17x7.87 in)