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SB Acoustics SB34SWPL76-3-DV Dual Voice Coil Subwoofer

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The SB34SWPL76-3-DV from SB Acoustics is a dual voice coil 12 inch 3 ohm (x2) subwoofer featuring a very stiff hard paper cone, a vented cast aluminium chassis and a large vented motor system. This rugged driver is a superb choice for high quality in-car installations.

Key Features:

  • Long stroke design.
  • Linear high stability suspension.
  • Higher shore hardness rubber surround
  • Dual 3" copper voice coils.
  • Non-conducting reinforced fibre glass coil former.
  • Very stiff hard paper cone (made in-house).
  • Vented cast aluminium chassis.
  • Large vented motor system and vented coil-former.
  • Long life silver lead wires.

Basic parameters:

Resonant frequency (fs) 27.5 Hz Nominal impedance (Zn) 2x 3 Ω
Mechanical  Q factor (Qms) 5.62
DC resistance (Re) 2x 2.5 Ω
Electrical Q factor (Qes) 0.52
Max power handling 300W
Total Q factor (Qts) 0.48
Sensitivity 2.83V/1m (parallel / series)
90 / 85dB
Equivalent volume (Vas) 43L Chassis diameter

Here's the full datasheet:

.pdf link