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SB12PAC25-4

SB Acoustics SB12PAC25-4 Aluminium Midwoofer

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UK STOCK ITEM

The SB Acoustics SB12PAC25-4 is a 4 inch 4 ohm midwoofer featuring an anodised aluminium cone, a low damping rubber surround and a reinforced plastic chassis. A long throw design offering an extended frequency response with fast transients.

Key Features:

  • Vented reinforced plastic chassis.
  • Anodised aluminium cone.
  • Low damping rubber surround.
  • Large vented motor system.
  • Long stroke linear suspension.
  • Light weight CCAW voice coil.
  • Non-conducting fibreglass coil former.
  • Non-resonant long life lead wires.

Basic parameters:

Resonant frequency (fs) 52.5 Hz Nominal impedance (Zn) 4 Ω
Mechanical  Q factor (Qms) 5.0
DC resistance (Re) 3.1Ω
Electrical Q factor (Qes) 0.33
Max power handling 30 W
Total Q factor (Qts) 0.31
Sensitivity (2.83V/1m)
87dB
Equivalent volume (Vas) 5.3L Chassis diameter (pincushion)
112.5mm

Here's the full datasheet:

.pdf link

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