GB Series subwoofers are designed for high power handling and optimized to provide superior low frequency extension from a wide range of sealed and vented enclosures.  A copper inductance-reducing pole piece cap also reduces distortion and extends the range of flat response well into the midbass.

The GB10D4 includes a vented, cast aluminum basket, dual 4 ohm voice coils and a convenient switch to select a 2 ohm or 8 ohm configuration.

 


  • Treated Paper Cone
  • 3” (75 mm) Voice Coil on Fiberglass Former
  • Dual 4 Ω Voice Coils
  • Impedance Selection Switch
  • Copper Inductance- and Distortion-Reducing Pole Piece Cap
  • Extended Pole Piece
  • Flared Pole Piece Vent
  • Dual Ferrite Magnets
  • Machined Back Plate
  • Proprietary Vented Cast Aluminum Basket
  • Tinsel Leads Stitched to the Spider
  • Flat, Progressive Nomex® Spider
  • Nitrile Butadiene Rubber Surround
  • Screw Terminals

Specifications:

  • Nominal Impedance: 2 Ω or 8 Ω
  • RMS Power Handling: 500 W
  • Peak Power Handling: 1500 W
  • Frequency Response (-3 dB): 24 Hz – 200 kHz
  • Sensitivity (2.83 V/1 M): 90 dB (2 Ω configuration)
  • Recommended Amplifier RMS Power Range: 100 W – 1000 W

Dimensions:

  • Cut-out diameter: 235 mm (9-1/4”)
  • Overall Diameter: 272 mm (10-11/16”)
  • Mounting Depth: 159 mm (6-1/4”)
  • Mounting Height: 17.5 mm (11/16”)

ENCLOSURE PERFORMANCE (SEE OWNER’S MANUAL FOR DETAILS):

Sealed Enclosure Volume: 17 liters (0.6 ft³):

Vented Enclosure Volume and Tuning: 28.3 liters (1 ft³), 33 Hz:

THIELE AND SMALL PARAMETERS:

  • Revc: 2 Ω or 8 Ω
  • Levc @1 kHz: 0.57 mH (2 Ω configuration)
  • Sd: 346.3 cm²
  • Mmd: 141 g
  • Mms: 145 g
  • Cms: 169 µM/N
  • Vas: 29 liters
  • Fs: 32 Hz
  • BL: 10.59 TM (2 Ω configuration)
  • Qms: 8.03
  • Qes: 0.54
  • Qts: 0.5
  • Xmax (1-way linear): 19 mm (11/16”)
  • Basket Displacement: 3.15 liters (0.11 ft³)

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