SB Acoustics Satori MR13P-4 5" Egyptian Papyrus Cone Midrange
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Product description
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 and coil former for reduced compression
High piston to chassis diameter ratio
Gasket and bolt hole protrusions for reduced coupling to speaker cabinet
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Product details
SB Acoustics Satori MR13P-4 5" Egyptian Papyrus Cone Midrange
The MR13P-4 is built on a cosmetically attractive six-spoke frame that has a minimal reflective footprint behind the cone to reduce reflections and a completely open area beneath the spider mounting shelf for enhanced cooling— both highly desirable attributes. Additional cooling is provided by venting the voice coil former and a 12 mm diameter pole vent. The spider mounting shelf itself is pinned to the frame to limit vibration transfer from the frame to this part of the suspension system. The neodymium motor cup attaches to the bottom of the frame and has a separate cosmetic/heatsink part that looks like the continuation of the frame attached to the peripheral of the motor.
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Specifications
Article numberMR13P-4
Woofer SeriesSatori Series
Woofer TypeMidwoofer
Nominal Diameter5"
Power Handling (RMS)30 Watts
Impedance (Z)4 ohms
Sensitivity (SPL at 1m / 2.83V)91 dB
Voice Coil Diameter1.2"
DC Resistance (Re)3.3 ohms
Voice Coil Inductance (Le)0.11 mH
Resonant Frequency (Fs)41 Hz
Mechanical Q (Qms)2.8
Electromagnetic Q (Qes)0.25
Total Q (Qts)0.23
Diaphragm Mass Inc. Airload (Mms)5.4 g
Mechanical Compliance of Suspension (Cms)2.79 mm/N
Surface Area of Cone (Sd)70 cm2
BL Product (BL)4.3 Tm
Compliance Equivalent Volume (Vas)0.68 ft.³
Maximum Linear Excursion (Xmax)3 mm

