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MW19PNW-4

SB Acoustics Satori MW19PNW-4 Midwoofer

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The Satori MW19PNW-4 by SB Acoustics is a 7.5 inch 4 ohm midwoofer featuring a proprietary Papyrus / paper blended fibre cone, a high airflow cast chassis and a neodymium magnet assembly. Superb extended response with very low distortion. This unit is essentially the same as the MW19P-4 but with a natural coloured cone. 

Also available in 8 ohms: MW19PNW-8.

Key Features:

  • Vented aerodynamic cast aluminium chassis for optimum strength and low compression.
  • Proprietary cone material with EGYPTIAN PAPYRUS™ fibres made in-house.
  • Soft low damping rubber surround for optimum transient response.
  • Advanced BIMAX spider for improved linearity
  • Powerful optimised low distortion neodymium motor system.
  • Non-conducting fibre glass voice coil former for minimum damping.
  • Extended copper sleeve on pole piece for low inductance and reduced distortion.
  • CCAW voice coil for reduced moving mass.
  • Long life silver lead wires attached 180° apart for improved stability.
  • Vented pole piece and coil former for reduced compression.
  • Low piston to chassis diameter ratio.
  • Gasket and bolt hole protrusions for reduced coupling to speaker cabinet.

Basic parameters:

Resonant frequency (fs) 29 Hz Nominal impedance (Zn) 4 Ω
Mechanical  Q factor (Qms) 4.53
DC resistance (Re) 3.4 Ω
Electrical Q factor (Qes) 0.26
Max power handling 70 W
Total Q factor (Qts) 0.24
Sensitivity (2.83V/1m)
91.5dB
Equivalent volume (Vas) 61L Chassis diameter
187mm

Here's the full datasheet:

.pdf link

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