6½″ SATORI MR16P-4 / Paper


  • Vented aerodynamic cast aluminium chassis for optimum strength and
    low compression.
  • Proprietary cone material with EGYPTIAN PAPYRUS™ fibres made
  • 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
  • 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.
  • Mode balanced cone for reduced break-up.

Additional information

Nominal Impedance

4 Ω

DC resistance

Re 3.2 Ω

Voice coil inductance

Le 0.11 mH

Effective piston area

Sd 119 cm2

Voice coil diameter

35.5 mm

Voice coil height

11.2 mm

Air gap height

5 mm

Linear coil travel (p-p)

6.2 mm

Magnetic flux density

1.17 T

Magnet weight

0.13 kg

Net Weight

1 kg

Free air resonance

Fs 31 Hz


(2.83 V / 1 m) 92 dB

Mechanical Q-factor

Qms 4.85

Electrical Q-factor

Qes 0.26

Total Q-factor

Qts 0.25

Moving mass incl. air

Mms 11.2 g

Force factor

Bl 5.2 Tm

Equivalent volume

VAS 47.2 liters


Cms 2.35 mm/N

Mechanical loss

Rms 0.45 kg/s

Rated power handling

40 W


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



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