Volt Loudspeakers BM25004 Bass-midwoofer

The Volt BM25004 Bass-midwoofer represents a pinnacle of engineering for discerning audio enthusiasts seeking uncompromised performance. This high-excursion driver is meticulously crafted to deliver powerful, articulate bass and a transparent midrange, making it an exceptional choice for high-fidelity stereo systems, immersive home theatre setups, and even demanding professional audio applications. Its robust construction ensures it can handle the rigours of both sealed and vented enclosures with equal poise.

At the heart of this driver lies a remarkable 12.5mm linear excursion (Xmax), enabling it to move substantial air for controlled, deep bass reproduction without distortion. The carefully optimised motor system yields a sensitivity of 93dB SPL (1m/2.83V) and a total Q factor (Qts) of 0.27, indicating excellent transient response and suitability for compact, well-damped enclosures. With a low voice coil inductance of 0.9mH and a DC resistance of 4.8 ohms, the BM25004 offers effortless control and detailed articulation across its frequency range. Its 254mm nominal diameter and 121mm mounting depth fit neatly into many designs, while the 253mm cut-out diameter and four fixing holes simplify installation. Whether you are building a reference-quality two-way loudspeaker or a dedicated subwoofer system, the Volt BM25004 delivers the authority and finesse required to elevate any listening experience.