Monacor SPH-174KE 6-1/2" Kevlar Cone Midwoofer

The Monacor SPH-174KE 6-1/2" Kevlar Cone Midwoofer is a high-performance driver engineered to deliver articulate and controlled midbass reproduction for discerning audio enthusiasts. With its 8-ohm impedance and robust construction, this unit is ideally suited for use as a dedicated midwoofer or as a bass-midbass subwoofer in custom loudspeaker designs, home theatre systems, and high-fidelity audio projects where clarity and definition are paramount.

At the heart of this driver lies a rigid Kevlar cone, renowned for its exceptional stiffness-to-weight ratio, which minimises cone breakup and ensures accurate transient response. The 165.1mm nominal diameter and 5.3-inch cut-out diameter facilitate straightforward integration into enclosures, while the 75mm mounting depth accommodates compact cabinet designs. Technical specifications include a sensitivity of 88dB SPL (1m/2.83V) and a total Q factor (Qts) of 0.51, balancing efficiency with controlled low-frequency extension. The 0.43mH voice coil inductance and 6.39-ohm DC resistance contribute to stable impedance behaviour, while the 3mm linear excursion (Xmax) supports moderate output levels with low distortion. The copper voice coil wire ensures reliable thermal performance, and the 4-hole mounting pattern simplifies installation.

Whether you are building a two-way bookshelf speaker or a multi-driver floorstanding system, the SPH-174KE delivers the precision and authority required for immersive sound reproduction.