B&C Speakers 8MBX51 8-inch Mid-Bass LF Drivers Woofer Cone Waterproof Impregnated Cone Ventilated 2 in. Aluminium Voice Coil Gap 200 Wrms 400 Watts Peak 8 Ohm

The MBX series mid-bass woofers from B&C Speakers offer acoustic designers a new range of high efficiency, wide bandwidth alternatives that are not currently available in the B&C range. These full-featured transducers incorporate lightweight neodymium motors, inside/outside wound copper clad aluminum wire voice coils, weatherproof impregnated paper cones, and a symmetrical inductance profile. The MBX Series is especially well suited for two-way loudspeaker enclosures. The B&C Speakers 8MBX51 is a robust 8-inch mid-bass woofer engineered for high-performance audio systems that demand clarity, power, and durability. At its core is a 2-inch aluminum voice coil paired with a neodymium ring magnet, capable of handling 200 watts RMS and peaking at 400 watts. With a wide frequency response from 60 Hz to 4000 Hz and a sensitivity of 96.5 dB, it delivers crisp and powerful sound across the low to midrange spectrum. An integrated aluminum ring helps minimize distortion, while the ventilated voice coil gap reduces power compression, ensuring consistent output even under heavy use. Structurally, the woofer features a triple roll surround and a curvilinear cone supported by a single spider, enhancing stability and smooth mechanical response. The cone is waterproof impregnated, making it ideal for demanding environments. Internally, it boasts a magnetic gap of 0.28 inches and a flux density of 1.3 Tesla, with a moving mass of 20 grams and a motor strength of 11.4 T·m. Its resonant frequency of 60 Hz and Qts of 0.29 make it well-suited for vented enclosures, with a recommended box volume of 19 dm³ (0.67 ft³) tuned to 63 Hz. Mounting is straightforward, with an overall diameter of 8.86 inches, a baffle cutout of 7.36 inches, and a bolt circle of 8.27 inches. At 3.66 inches deep and weighing just under 4 pounds, it ships in a compact 10.04 × 10.04 × 5.91-inch box, occupying only 0.04 ft³ of air volume—making it both powerful and practical for installation.

• FEATURES : This high-performance speaker driver features a 2-inch aluminum voice coil and a neodymium ring magnet, delivering 400 watts of continuous program power. With a frequency range of 60 Hz to 4000 Hz and 96.5 dB sensitivity, it ensures clear and powerful sound. An aluminum ring reduces distortion, while a ventilated voice coil gap minimizes power compression for consistent performance.
• SPECIFICATIONS : This 8-inch woofer delivers strong and efficient audio output with an 8-ohm impedance, 96.5 dB sensitivity, and a frequency range of 60 Hz to 4000 Hz. It supports 200 watts nominal and 400 watts continuous power, featuring a 2-inch aluminum voice coil wound on a glass fiber former. With a 0.28-inch magnetic gap and 1.3 Tesla flux density, it ensures stable performance, while its waterproof impregnated cone adds durability for tough conditions.
• PARAMETERS : This speaker driver is designed for efficient low-frequency output, a 60 Hz resonant frequency and a Qts of 0.29 ideal for vented enclosures. It has a 220 cm² diaphragm area, 6 mm excursion, and a 20 g moving mass, supported by a strong 11.4 T·m motor. With a compliance volume of 23 dm³ and 1.7% efficiency, it ensures dynamic performance. Electrical specs include a 4.9-ohm resistance and 0.4 mH inductance, while its high EBP of 194 Hz enables broad bandwidth in ported setups.
• DESIGN : This woofer features a triple roll surround and a curvilinear cone supported by a single spider, designed for stability and smooth response. It uses a neodymium ring magnet with a T-pole design for efficient magnetic performance. The cone is treated with waterproof impregnation for added durability, making it suitable for challenging environments. Recommended for a 19 dm³ (0.67 ft³) enclosure, it performs best when tuned to 63 Hz.
• MOUNTING AND SHIPPING INFO : This speaker driver has an overall diameter of 8.86 inches with a 7.36-inch baffle cutout and an 8.27-inch bolt circle. It measures 3.66 inches deep and includes a 0.35-inch flange and gasket thickness. Weighing 3.97 pounds (4.96 pounds with packaging), it occupies 0.04 ft³ of air volume and ships in a compact box measuring 10.04 × 10.04 × 5.91 inches.