SB Acoustics Satori MW19P-4 Ohm Midwoofer Egyptian Papyrus Cone

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SB Acoustics Satori MW19P-4 Ohm Midwoofer Egyptian Papyrus Cone
The SB Acoustics Satori MW19P-4 Midwoofer is a State of The Art Neodymium magnet 7.5" 4 ohm midwoofer, featuring a proprietary Papyrus Paper cone, a high efficiency soft low damping optimum response rubber surround, BiMax spider, and a glass fiber former with copper sleeve pole piece.
Fitted with a 39mm voice coil. Very open cast frame for minimal reflections. Extended copper clad pole piece for lower distortion. Fs 28Hz, and a fabulous level wide response curve, this is a very flexible unit.

  • Vented aerodynamic cast aluminum chassis for optimum strength and low compression
  • Proprietary cone material with EGYPTIAN PAPYRUS™ fibers 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 fiber 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
  • High piston to chassis diameter ratio
  • Gasket and bolt hole protrusions for reduced coupling to speaker cabinet

Short data

Usage as Bass-Midrange
Power Handling 70 Watt
Impedance 4 Ohm
Frequency from 29 Hz
Max. Frequency 3 kHz


Overall dimensions 187 mm
Baffle cutout 163 mm
Depth (Total) 101.4 mm
Front material Aluminium diecast
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Paper
Dustcap Material Paper
Voice coil Ø 39 mm
Voice coil height 19.6 mm
Magnet Ø 0.75 mm


Resonance fs fs: 29 Hz
Mechanical Q Qms: 4.53
Electrical Q Qes: 0.26
Total Q Qts: 0.24
Equivalent Air-Volumen Vas: 61 Liter
DC-Resistance Re: 3.4 Ohm
Coil Inductance Le: 0.14 mH
Mech. Compliance Cms: 1.73 mm/N
Moving Mass Mms: 17.4 g
mech. Resistance Rms: 0.7 kg/s-¹
BL Product Bl: 6.5 N/A
Membrane Area Sd: 158 cm²
Sound pressure dB: 91.5 SPL

Frequency and Impedance

Technical Drawing

PDF-Product information

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