The SB Acoustics SATORI MR16PNW 6.5 inch midwoofer with paper/papyrus membrane is available in 4 Ohm and 8 Ohm versions. The ultra-light membrane is driven by a powerful neodymium motor. The resonance frequency around 30 Hz lies far outside the usable range, which makes the driver extremely linear in the usable range and ideal for 2-way use or also as a woofer. The generously ventilated centering spider optimizes the rear compression behavior to a maximum and provides additional cooling.

Features

• Ventilated, aerodynamic aluminum die-cast chassis for optimal rigidity and low compression
• Proprietary cone material with EGYPTIAN PAPYRUS™ fibers from in-house production
• Soft rubber surround with low damping for optimal transient response
• Advanced BIMAX spider for improved linearity
• Powerful, optimized neodymium motor system with low distortion
• Non-conductive fiberglass voice coil former for minimal damping
• Extended copper sleeve on the pole shoe for low inductance and reduced distortion
• CCAW voice coil for reduced moving mass
• Durable silver wires with 180° spacing for improved stability
• Ventilated pole shoe and coil former for lower compression
• Low ratio of piston to chassis diameter
• Sealing and bolt hole protrusions for reduced coupling with the speaker enclosure
• Mode-balanced cone for reduced breakup

Data 4 Ohm version:

• Nominal impedance 4 Ω
• Frequency range 80Hz-3kHz
• DC resistance, Re 3.2 Ω
• Voice coil inductance, Le 0.11 mH
• Effective diaphragm area, Sd 119 cm²
• Voice coil diameter 35.5 mm
• Voice coil height 11.2 mm
• Air gap height 5 mm
• Linear coil excursion (p-p) 6.2 mm
• Magnetic flux density 1.17 T
• Magnet weight (NEO) 0.13 kg
• Net weight 1 kg
• Free air resonance, Fs 31 Hz
• Sensitivity (2.83 V / 1 m) 92.5 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
• Compliance, Cms 2.35 mm/N
• Mechanical loss, Rms 0.45 kg/s
• Nominal power handling* 40 W
• * IEC 268-5, Butterworth high-pass, 200 Hz, 12 dB/oct.

Data 8 Ohm version:

• Nominal impedance 8 Ω
• Frequency range 80Hz-3kHz
• DC resistance, Re 6.2 Ω
• Voice coil inductance, Le 0.11 mH
• Effective diaphragm area, Sd 119 cm²
• Voice coil diameter 35.5 mm
• Voice coil height 11.2 mm
• Air gap height 5 mm
• Linear coil excursion (p-p) 6.2 mm
• Magnetic flux density 1.17 T
• Magnet weight (NEO) 0.13 kg
• Net weight 1 kg
• Free air resonance, Fs 31 Hz
• Sensitivity (2.83 V / 1 m) 88.5 dB
• Mechanical Q factor, Qms 5.75
• Electrical Q factor, Qes 0.34
• Total Q factor, Qts 0.32
• Moving mass incl. air, Mms 11.8 g
• Force factor, Bl 6.5 Tm
• Equivalent volume, VAS 44.8 liters
• Compliance, Cms 2.23 mm/N
• Mechanical loss, Rms 0.4 kg/s
• Nominal power handling* 30 W
• * IEC 268-5, Butterworth high-pass, 200 Hz, 12 dB/oct.

Dimensions