GRS 10SMP-4

4Ω
8Ω

Woofer

Nominal diameter10″ / 280 mm
Resonance28 Hz
Q factor0.51
Sensitivity86.3 dB
Linear excursion± 5 mm
Program power140 W
GRS 10SMP-4 WooferGRS 10SMP-4 WooferGRS 10SMP-4 Woofer
Impedance
Excursion
Velocity
SPL
Phase
Group delay
Step response
Tone Burst
Driver
Port
Combined
Frequency response
Hz
Impedance
Ω
Impedance Phase
°
Excursion
mm
Velocity
m/s
SPL
dB
Acoustical Phase
°
Group Delay
ms
Transient response
ms
Discard
Apply

Specifications

  • Sensitivity (1W, 1m, infinite baffle) SPL1W 86.3dB
  • Frequency response 24 - 2000Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 28Hz
  • Mechanical quality factor QMS 2.72
  • Electrical quality factor QES 0.63
  • Total quality factor QTS 0.51

Large signal parameters

  • Maximum linear excursion (one way) xmax 5mm
  • Air volume displaced at xmax VD 170cm³
  • Power handling P 70W
  • Program power Pmax 140W

Voice Coil

  • Nominal impedance Z 4Ω
  • DC resistance RE 3.8Ω
  • Inductance (1kHz) LE 0.34mH
  • VC Diameter 39mm
  • Former material Aluminum

Magnet

  • Force factor Bl 8.2N/A
  • Motor constant Bl/√RE 4.21N/√W
  • Diameter 156mm
  • Height 25mm

Diaphragm

  • Effective diameter 208mm
  • Effective area SD 340cm²
  • Moving mass (including air load) MMS 63g
  • Moving mass MMD 58.2g
  • Material Poly

Suspensions

  • Stiffness KMS 1.96N/mm
  • Compliance CMS 510µm/N
  • Equivalent volume to the compliance VAS 86L
  • Mechanical resistance RMS 4.07N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 10″
  • 280mm
  • Overall diameter 280mm
  • Baffle cutout diameter 233mm
  • Overall depth 120mm
  • Flange thickness 9mm
  • Mounting depth 111mm
  • Volume occupied by the driver (estimated) 1.7L
Impedance
SPL
GRS 10SMP-4 Impedance
GRS 10SMP-4 SPL
GRS 10SMP-4 Dimensions
PDF fileDatasheet

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