7½″ SATORI MW19P-4 / Paper

Features

  • Vented aerodynamic cast aluminium chassis for optimum strength and low compression
  • Proprietary cone material with EGYPTIAN PAPYRUSTM fibres made in-house
  • Soft low damping rubber surround for optimum transient response
  • Advanced BIMAX spider for improved linearity
  • Powerful optimized 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 for reduced compression
  • Low piston to chassis diameter ratio
  • Gasket and bolt hole protrusions for reduced coupling to speaker cabinet

Additional information

Nominal Impedance

4 Ω

DC resistance

Re 3.4 Ω

Voice coil inductance

Le 0.14 mH

Effective piston area

Sd 158 cm2

Voice coil diameter

39 mm

Voice coil height

19.6 mm

Air gap height

6 mm

Linear coil travel (p-p)

13.6 mm

Magnetic flux density

1.1 T

Magnet weight

0.15 kg

Net Weight

1.48 kg

Free air resonance

Fs 29 Hz

Sensitivity

(2.83 V / 1 m) 91.5 dB

Mechanical Q-factor

Qms 4.53

Electrical Q-factor

Qes 0.26

Total Q-factor

Qts 0.24

Moving mass incl. air

Mms 17.4 g

Force factor

Bl 6.5 Tm

Equivalent volume

VAS 61 liters

Compliance

Cms 1.73 mm/N

Mechanical loss

Rms 0.7 kg/s

Rated power handling

* 70 W

Note

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

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