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SB17MFC35-4

SB Acoustics SB17MFC35-4 Polypropylene Midwoofer

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The SB Acoustics SB17MFC35-4 is a 6 inch 4 ohm midwoofer drive unit featuring a polypropylene cone and a vented cast alloy chassis. Excellent extended response and very easy to work with. One of our favourite drive units !

Also available in 8 ohms: SB17MFC35-8.

Key Features:

  • Vented cast aluminium chassis for optimum strength and low compression.
  • Mineral filled PP-cone made in-house.
  • Soft low damping rubber surround for improved transient response.
  • Non-conducting fibre glass voice coil former for minimum damping.
  • Extended copper sleeve on pole piece for low inductance and low distortion.
  • CCAW voice coil for reduced moving mass.
  • Long life silver lead wires.
  • Vented pole piece for reduced compression.

Basic parameters:

Resonant frequency (fs) 30 Hz Nominal impedance (Zn) 4 Ω
Mechanical  Q factor (Qms) 5.2
DC resistance (Re) 3.1 Ω
Electrical Q factor (Qes) 0.3
Max power handling 60 W
Total Q factor (Qts) 0.28
Sensitivity (2.83V/1m)
90dB
Equivalent volume (Vas) 45L Chassis diameter
171mm

Here's the full datasheet:

.pdf link

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