GRS 5SMP-8 5-1/4″ Surface Mount Poly Cone Bass-midwoofer

Compact and optimized for surface mounting, the GRS 5SMP-8 is a 5-1/4″ poly cone woofer designed for clarity and control in midbass performance. Engineered with thoughtful design features like a copper cap and aluminum voice coil former, this driver offers solid performance for DIY speaker projects and compact audio systems.

Impedance (Z)
8 Ohm
Power Handling (RMS)
35 Watts
Frequency response
50 – 2,500 Hz

€29.95

5 in stock

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Description

Highlights of the GRS 5SMP-8

  • Damped poly cone with rubber surround ensures smooth, low-resonance response
  • Aluminum voice coil former enhances thermal stability and power handling
  • Copper cap reduces inductance and minimizes distortion
  • Low-profile frame with integrated foam gasket is ideal for surface mount designs

 

Product details GRS 5SMP-8

GRS 5SMP-8 Surface Mount Woofer

 

The GRS 5SMP-8 is a versatile 5-1/4″ 8-ohm woofer tailored for surface mount applications, delivering a usable frequency range from 50 Hz to 2,500 Hz. Its poly cone construction and rubber surround help suppress unwanted resonances, while the vented pole piece and aluminum voice coil former support effective thermal management. A copper cap on the motor structure further reduces voice coil inductance, improving high-frequency clarity and lowering harmonic distortion. With an SPL of 86.4 dB at 2.83V/1m and an RMS power handling of 35 watts, the 5SMP-8 is well-suited for compact full-range systems, line arrays, or midbass augmentation in 2-way speaker designs. Its integrated foam gasket also helps achieve a tight acoustic seal during cabinet mounting.

Specifications

Article number5SMP-8
EAN0848864079813
Woofer TypeBass-midwoofer
Power Handling (RMS)35 Watts
Impedance (Z)8 Ohm
Sensitivity (SPL at 1m / 2.83V)86.4 dB
Frequency Response50 – 2,500 Hz
Voice Coil Diameter26 mm
DC Resistance (Re)6 Ohm
Voice Coil Inductance (Le)1 mH
Resonant Frequency (Fs)55 Hz
Mechanical Q (Qms)3.26
Electromagnetic Q (Qes)0.51
Total Q (Qts)0.44
Diaphragm Mass Inc. Airload (Mms)12g
Mechanical Compliance of Suspension (Cms)0.70 mm/N
Surface Area of Cone (Sd)80 cm²
Volume of Displacement (Vd)16 cm³
BL Product (BL)7.0 Tm
Compliance Equivalent Volume (Vas)6.4 L
Maximum Linear Excursion (Xmax)2 mm
# Mounting Holes4
Article number5SMP-8
EAN0848864079813
Additional information
Woofer TypeBass-Midwoofer
Power Handling (RMS)35 Watts
Impedance (Z)8 Ohm
Sensitivity (SPL at 1m / 2.83V)86.4 dB
Frequency response50 – 2,500 Hz
Voice Coil Diameter26 mm
DC Resistance (Re)6 Ohm
Voice Coil Inductance (Le)1 mH
Resonant Frequency (Fs)55 Hz
Mechanical Q (Qms)3.26
Electromagnetic Q (Qes)0.51
Total Q (Qts)0.44
Diaphragm Mass Inc. Airload (Mms)12g
Mechanical Compliance of Suspension (Cms)0.70 mm/N
Surface Area of Cone (Sd)80 cm2
Volume of Displacement (Vd)16 cm³
BL Product (BL)7.0 Tm
Compliance Equivalent Volume (Vas)6.4 L
Maximum Linear Excursion (Xmax)2 mm
# Mounting Holes4
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