7½″ SATORI MW19PF-8 / Paper


  • 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.
  • 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.

Additional information

Nominal Impedance

8 Ω

DC resistance

Re 6 Ω

Voice coil inductance

Le 0.23 mH

Effective piston area

Sd 158 cm2

Voice coil diameter

38.5 mm

Voice coil height

19 mm

Air gap height

6 mm

Linear coil travel (p-p)

13 mm

Magnetic flux density

0.9 T

Magnet weight

0.88 kg

Net Weight

2.29 kg

Free air resonance

Fs 30 Hz


(2.83 V / 1 m) 88.5 dB

Mechanical Q-factor

Qms 5.0

Electrical Q-factor

Qes 0.37

Total Q-factor

Qts 0.34

Moving mass incl. air

Mms 15.8 g

Force factor

Bl 7.0 Tm

Equivalent volume

Vas 63 liters


Cms 1.78 mm/N

Mechanical loss

Rms 0.6 kg/s

Rated power handling

70 W


IEC 268-5, T/S parameters measured on drive units that are broken in.



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