We are away on business until the 2nd April - webshop is open, orders will be processed when we return. Thanks, Will & Caroline.



SB Acoustics SB13PFCR25-8 Paper Midwoofer

SB Acoustics logo


The SB13PFCR25-8 by SB Acoustics is a 5 inch 8 ohm midwoofer speaker featuring a blended paper fibre cone, a vented reinforced plastic chassis and an optimised motor system. Like other SB Acoustics plastic chassis drivers, the SB13PFCR25-8 has a smooth response and is incredible value for money.

Also available in 4 ohms: SB13PFCR25-4.

Key Features:

  • Vented reinforced plastic chassis.
  • Proprietary cone material with natural fibers made in-house.
  • Soft low damping rubber surround for improved transient response.
  • Optimised motor system.
  • Vented coil former for low compression
  • Non-resonant long life lead wires.

Basic parameters:

Resonant frequency (fs) 45 Hz Nominal impedance (Zn) 8 Ω
Mechanical  Q factor (Qms) 2.2
DC resistance (Re) 5.6 Ω
Electrical Q factor (Qes) 0.39
Max power handling 40 W
Total Q factor (Qts) 0.33
Sensitivity (2.83V/1m)
Equivalent volume (Vas) 13.4L Chassis diameter

Here's the full datasheet:

.pdf link