SB Acoustics Satori MW13P / Paper

The SB Acoustics SATORI SATORI MW13P 5" (13cm) bass-midrange driver with paper/papyrus cone is available in a 4 Ohm and 8 Ohm version. The ultra-light cone is driven by a powerful neodymium motor. The resonance frequency around 40 Hz is well outside the useful range, which means that the driver plays extremely linearly in the useful range and is ideal for 2-way use or as a woofer. The generously ventilated centring spider optimizes the rear compression behaviour to a maximum and provides additional cooling.

• Ventilated, aerodynamic cast aluminum chassis for optimum strength and low compression
  
• Proprietary cone material with EGYPTIAN PAPYRUS™ fibers from our own production
  
• Soft rubber surround with low damping for optimum transient response
  
• Advanced BIMAX spider for improved linearity
  
• Powerful, optimized neodymium motor system with low distortion
  
• Non-conductive glass fiber voice coil former for minimal attenuation
  
• Extended copper sleeve on the pole piece for low inductance and reduced distortion
  
• CCAW voice coil for reduced moving mass
  
• Durable silver wires with 180° spacing for improved stability
  
• Ventilated pole piece and coil carrier for reduced compression
  
• Low ratio of piston to chassis diameter
  
• Protrusions in the seal and in the screw holes for reduced coupling to the speaker housing

• Nominal impedance 4 Ω
  
• Frequency range: 100Hz - 4kHz
• Direct current resistance, Re 3.8 Ω
  
• Inductance of the voice coil, Le 0.13 mH
  
• Effective diaphragm area, Sd 70 cm2
  
• Voice coil diameter 30.5 mm
  
• Height of the voice coil 15 mm
  
• Height of the air gap 5 mm
  
• Linear coil stroke (p-p) 10 mm
  
• Magnetic flux density 1.08 T
  
• Weight of the magnet 0.1 kg
  
• Net weight 0.78 kg
  
• Free air resonance, Fs 41 Hz
  
• Sensitivity (2.83V/1m) 89 dB
  
• Mechanical Q-factor, Qms 3.71
  
• Electrical Q-factor, Qes 0.29
  
• Total Q-factor, Qts 0.27
  
• Moving mass incl. air, Mms 7.2 g
  
• Force factor, Bl 4.9 Tm
  
• Equivalent volume, Vas 14.6 liters
  
• Compliance, Cms 2.09 mm/N
  
• Mechanical loss, Rms 0.5 kg/s
  
• Rated load capacity* 40 W
  
• * IEC 268-5, T/S parameters measured on drive units that are retracted

• Nominal impedance 8 Ω
  
• Frequency range: 100Hz - 4kHz
• Direct current resistance, Re 6.0 Ω
  
• Inductance of the voice coil, Le 0.15 mH
  
• Effective diaphragm area, Sd 70 cm2
  
• Voice coil diameter 30.5 mm
  
• Height of the voice coil 15 mm
  
• Height of the air gap 5 mm
  
• Linear coil stroke (p-p) 10 mm
  
• Magnetic flux density 1.08 T
  
• Weight of the magnet 0.1 kg
  
• Net weight 0.78 kg
  
• Free air resonance, Fs 41.5 Hz
  
• Sensitivity (2.83V/1m) 87 dB
  
• Mechanical Q-factor, Qms 3.55
  
• Electrical Q-factor, Qes 0.33
  
• Total Q-factor, Qts 0.30
  
• Moving mass incl. air, Mms 6.8 g
  
• Force factor, Bl 5.7 Tm
  
• Equivalent volume, Vas 15.0 liters
  
• Compliance, Cms 2.16 mm/N
  
• Mechanical loss, Rms 0.5 kg/s
  
• Rated load capacity* 40 W
  
• * IEC 268-5, T/S parameters measured on drive units that are retracted