B&C Speakers - 15PZB100 4 Ohm

The B&C Speakers 15PZB100 4 Ohm is a 15-inch loudspeaker designed to combine power and precision. With its 700 W AES and over 2000 W peak, it responds without faltering to the most intense demands, whether for a touring loudspeaker or a fixed installation. Its 96dB output ensures excellent energy efficiency, limiting the need for amplification while guaranteeing full, dynamic sound.

Its frequency response extends from 40 Hz to 2000 Hz, covering both bass and low-midrange with regularity. This versatility makes it an ideal component for two-way full-range speakers, but also for subwoofers capable of delivering powerful, clean bass. Its resonance frequency of 41 Hz means that the bass is very solid, even at reasonable load volumes.

Built with a 4-inch copper voice coil mounted on a fibreglass support, the 15PZB100 combines sensitivity and robustness. The ferrite motor delivers a stable magnetic flux, optimised by a BL factor of 23.75 Tm, guaranteeing excellent control of the diaphragm at high excursion levels. This stability translates into clean bass and clear projection at the bottom end of the spectrum.

Its Xmax of ±8 mm and its reinforced aluminium basket mean that the diaphragm can withstand considerable movement without generating significant distortion. The choice of durable materials, such as the fabric suspension and the specific treatment of the cone, ensures reliable performance over time, even in intensive environments or those subject to climatic constraints.

Thanks to its Thiele & Small parameters (Qts 0.27, Vas 101.7 l, EBP 152 Hz), the 15PZB100 lends itself perfectly to bass-reflex loads optimised for tuning around 40 Hz. This makes it a recommended loudspeaker for professional loudspeaker manufacturers and sound engineers seeking a balance between bass depth and midrange definition.