GRS 6SMP-8

4Ω
8Ω

Woofer

Nominal diameter6.5″ / 174 mm
Resonance47 Hz
Q factor0.45
Sensitivity86.1 dB
Linear excursion± 5 mm
Program power100 W
GRS 6SMP-8 WooferGRS 6SMP-8 WooferGRS 6SMP-8 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 86.1dB
  • Frequency response 40 - 2500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 47Hz
  • Mechanical quality factor QMS 2.70
  • Electrical quality factor QES 0.54
  • Total quality factor QTS 0.45

Large signal parameters

  • Maximum linear excursion (one way) xmax 5mm
  • Air volume displaced at xmax VD 68cm³
  • Power handling P 50W
  • Program power Pmax 100W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.1Ω
  • Inductance (1kHz) LE 0.43mH
  • VC Diameter 39mm
  • Former material Aluminum

Magnet

  • Force factor Bl 8.37N/A
  • Motor constant Bl/√RE 3.39N/√W
  • Diameter 120mm
  • Height 22mm

Diaphragm

  • Effective diameter 132mm
  • Effective area SD 136cm²
  • Moving mass (including air load) MMS 21g
  • Moving mass MMD 19.8g
  • Material Damped poly cone

Suspensions

  • Stiffness KMS 1.82N/mm
  • Compliance CMS 550µm/N
  • Equivalent volume to the compliance VAS 14.5L
  • Mechanical resistance RMS 2.3N·s/m
  • Surround material Rubber

Dimensions

  • Nominal diameter 6.5″
  • 174mm
  • Overall diameter 174mm
  • Baffle cutout diameter 148mm
  • Overall depth 84mm
  • Flange thickness 6mm
  • Mounting depth 77mm
  • Volume occupied by the driver (estimated) 0.54L
Impedance
SPL
GRS 6SMP-8 Impedance
GRS 6SMP-8 SPL
GRS 6SMP-8 Dimensions
PDF fileDatasheet

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