GRS 8SMP-4 Bass-midwoofer

The GRS 8SMP-4 Bass-Midwoofer is a versatile 8-inch driver engineered to deliver deep, controlled bass alongside a clear and articulate midrange response. Whether you are designing a high-fidelity home audio system, a custom car audio installation, or a professional studio monitor, this driver excels in applications requiring both low-end authority and vocal clarity. Its robust construction makes it equally suitable for sealed or ported enclosures, offering flexibility for DIY enthusiasts and seasoned audio engineers alike.

Technically, the 8SMP-4 features a 4-ohm impedance and a sensitivity of 91.7 dB, ensuring efficient power handling and high output from modest amplification. The total Q factor (Qts) of 0.39, combined with a resonant frequency (Fs) of 38 Hz and a linear excursion (Xmax) of 5.5 mm, allows for tight, distortion-free bass reproduction. A 39 mm voice coil and a DC resistance (Re) of 3.8 ohms contribute to thermal stability and reliability. The equivalent volume (Vas) of 37.6 litres and mechanical compliance (Cms) of 0.61 mm/N aid in enclosure design, while the low voice coil inductance (Le) of 0.3 mH ensures extended high-frequency response. With a displacement volume (Vd) of 116 cm³, this driver delivers impressive air movement for its size.

Ideal for upgrading existing systems or building from scratch, the GRS 8SMP-4 offers exceptional value for those seeking a balanced, high-performance bass-midwoofer.