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GRS 8SMP-4 8″ Surface Mount Poly Cone Bass-midwoofer
€49.95
The GRS 8SMP-4 is a powerful 8″ surface-mount woofer built for high-output, low-distortion bass in space-constrained designs. With a high sensitivity of 91.7 dB, extended low-frequency response, and thermally stable motor structure, this 4-ohm driver is a standout choice for dynamic audio performance in compact enclosures.
11 in stock
Highlights of the GRS 8SMP-4
- High 91.7 dB sensitivity for efficient output even with lower-powered amplifiers
- Extended excursion with 5.5 mm Xmax enables rich low-end extension
- Copper cap reduces distortion and enhances high-frequency behavior
- Low-profile frame and integrated gasket for secure and airtight surface-mount installation
Product details GRS 8SMP-4
GRS 8SMP-4 Surface Mount Woofer
The GRS 8SMP-4 is an 8″ poly cone woofer with 4-ohm impedance, optimized for surface-mount applications where compact form factor meets high-performance audio. Featuring a vented motor design, aluminum voice coil former, and copper cap, this driver is engineered to maintain thermal and mechanical stability under continuous use. With a usable frequency range of 30 Hz to 1,500 Hz and 60 watts RMS power handling, it is well-suited for both full-range and midbass roles in two-way or compact subwoofer configurations. A Vas of 37.6 liters and a 116 cm³ displacement volume (Vd) contribute to excellent low-frequency capability. The high sensitivity of 91.7 dB at 2.83V/1m ensures punchy performance, even when used with modest amplification. Ideal for DIY loudspeaker projects or shallow cabinet designs where performance cannot be compromised.
Specifications
| Article number | 8SMP-4 |
| EAN | 0848864079844 |
| Woofer Type | Bass-midwoofer |
| Power Handling (RMS) | 60 Watts |
| Impedance (Z) | 4 Ohm |
| Sensitivity (SPL at 1m / 2.83V) | 91.7 dB |
| Frequency Response | 30 – 1,500 Hz |
| Voice Coil Diameter | 39 mm |
| DC Resistance (Re) | 3.8 Ohm |
| Voice Coil Inductance (Le) | 0.3 mH |
| Resonant Frequency (Fs) | 38 Hz |
| Mechanical Q (Qms) | 2.69 |
| Electromagnetic Q (Qes) | 0.46 |
| Total Q (Qts) | 0.39 |
| Diaphragm Mass Inc. Airload (Mms) | 29g |
| Mechanical Compliance of Suspension (Cms) | 0.61 mm/N |
| Surface Area of Cone (Sd) | 211 cm² |
| Volume of Displacement (Vd) | 116 cm³ |
| BL Product (BL) | 7.56 Tm |
| Compliance Equivalent Volume (Vas) | 37.6 L |
| Maximum Linear Excursion (Xmax) | 5.5 mm |
| # Mounting Holes | 4 |
| Article number | 8SMP-4 |
| EAN | 0848864079844 |
| Woofer Type | Bass-Midwoofer |
|---|---|
| Power Handling (RMS) | 60 Watts |
| Impedance (Z) | 4 Ohm |
| Sensitivity (SPL at 1m / 2.83V) | 91.7 dB |
| Frequency response | 30 – 1,500 Hz |
| Voice Coil Diameter | 39 mm |
| DC Resistance (Re) | 3.8 Ohm |
| Voice Coil Inductance (Le) | 0.3 mH |
| Resonant Frequency (Fs) | 38 Hz |
| Mechanical Q (Qms) | 2.69 |
| Electromagnetic Q (Qes) | 0.46 |
| Total Q (Qts) | 0.39 |
| Diaphragm Mass Inc. Airload (Mms) | 29g |
| Mechanical Compliance of Suspension (Cms) | 0.61 mm/N |
| Surface Area of Cone (Sd) | 211 cm² |
| Volume of Displacement (Vd) | 116 cm³ |
| BL Product (BL) | 7.56 Tm |
| Compliance Equivalent Volume (Vas) | 37.6 L |
| Maximum Linear Excursion (Xmax) | 5.5 mm |
| # Mounting Holes | 4 |
