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SB Acoustics SB34NRX75-6 Norex Woofer

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The SB Acoustics SB34NRX75-6 is a 12 inch 6 ohm woofer / bass speaker featuring a Norex cone, a high power 75mm voice coil and a vented cast aluminium chassis. Norex is a proprietary paper based material comprised of wood pulp and selected natural fibres blended for an optimally strong but lightweight cone that gives extended pistonic action.

Also available in 8 ohms: SB34NRX75-8 and a high Qts 16 ohm version: SB34NRX75-16.

Key Features:

  • High flow venting center pole.
  • 3″ / 75mm voice coil.
  • Low dampening surround.
  • Non-inductive voice coil former.
  • Proprietary cone materials made-in-house.
  • Cast Aluminium chassis.

Basic parameters:

Resonant frequency (fs) 19 Hz Nominal impedance (Zn) 6 Ω
Mechanical  Q factor (Qms) 5.1
DC resistance (Re) 4.2 Ω
Electrical Q factor (Qes) 0.43
Max power handling 200 W
Total Q factor (Qts) 0.40
Sensitivity (2.83V/1m)
Equivalent volume (Vas) 260L Chassis diameter

Here's the full datasheet:

.pdf link