Scan-Speak Discovery 18W/8424G00 7" Woofer

The Scan-Speak Discovery 18W/8424G00 7" Woofer represents a refined blend of engineering and acoustic performance, designed to elevate your audio projects with precision and clarity. As part of the esteemed Discovery series, this driver excels in delivering controlled, articulate bass that integrates seamlessly into a variety of sound systems. Whether you are constructing a high-fidelity two-way loudspeaker, a dedicated subwoofer enclosure, or a multi-channel home theatre setup, this woofer provides the foundation for accurate low-frequency reproduction. Its versatility also makes it an excellent choice for automotive audio installations where space and performance are paramount.

Technically, the 18W/8424G00 is built around a 7-inch (177.8 mm) nominal diameter cone, with an 8-ohm impedance and a sensitivity of 89.4 dB (SPL at 1m/2.83V). The total Q factor of 0.45, derived from a mechanical Q (Qms) of 4.04 and an electrical Q (Qes) of 0.51, ensures a well-damped response with excellent transient behaviour. A resonance frequency (Fs) of 54 Hz and an equivalent volume (Vas) of 20.1 litres support versatile enclosure designs, while the 24.89 mm voice coil and 0.69 mH inductance contribute to low distortion and reliable power handling. With a maximum power tolerance of 11 watts and a moving mass (Mms) of 11.3 grams, this woofer delivers a balanced, authoritative sound that remains composed even under demanding conditions. Ideal for audiophiles and DIY enthusiasts, it brings Scan-Speak’s renowned craftsmanship to every project.