GRS A25-10

8Ω

Woofer

Nominal diameter10″ / 254 mm
Resonance30 Hz
Q factor0.37
Sensitivity89.2 dB
Linear excursion± 4.5 mm
Program power140 W
GRS A25-10 WooferGRS A25-10 WooferGRS A25-10 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 89.2dB
  • Frequency response 30 - 4500Hz

Thiele & Small parameters

  • Resonance frequency (free air) fS 30Hz
  • Mechanical quality factor QMS 2.50
  • Electrical quality factor QES 0.43
  • Total quality factor QTS 0.37

Large signal parameters

  • Maximum linear excursion (one way) xmax 4.5mm
  • Air volume displaced at xmax VD 156cm³
  • Power handling P 70W
  • Program power Pmax 140W

Voice Coil

  • Nominal impedance Z 8Ω
  • DC resistance RE 6.6Ω
  • Inductance (1kHz) LE 1.7mH
  • VC Diameter 38mm

Magnet

  • Force factor Bl 12N/A
  • Motor constant Bl/√RE 4.67N/√W

Diaphragm

  • Effective diameter 210mm
  • Effective area SD 346cm²
  • Moving mass (including air load) MMS 49.6g
  • Moving mass MMD 45g

Suspensions

  • Stiffness KMS 1.82N/mm
  • Compliance CMS 550µm/N
  • Equivalent volume to the compliance VAS 91L
  • Mechanical resistance RMS 3.74N·s/m

Dimensions

  • Nominal diameter 10″
  • 254mm
  • Overall diameter 254mm
  • Baffle cutout diameter 244mm
  • Overall depth 116mm
  • Flange thickness 13mm
  • Mounting depth 103mm
  • Volume occupied by the driver (estimated) 1.4L
Impedance
SPL
GRS A25-10 Impedance
GRS A25-10 SPL
GRS A25-10 Dimensions
PDF fileDatasheet

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