SB Acoustics SB12MNRX2-25-4 4″ Midrange Woofer

SB Acoustics SB12MNRX2-25-4 4″ Midrange Woofer

Impedance (Z)
4 ohms
Power Handling (RMS)
50 Watts
Resonant Frequency (Fs)
58 Hz

€61.95

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SKU: SB12MNRX2-25-4 Categories: , ,
Description

Highlights

  • Proprietary cone material with natural fibres made in-house
  • Shortened voice coil optimized for pure midrange reproduction
  • High damping Butyl rubber surround for non-resonant sound character
  • Vented pole piece for reduced compression
  • Vented cast aluminium chassis for optimum strength and low compression
  • CCAW voice coil for reduced moving mass
  • Long life silver lead wires
  • Non-conducting fibre glass coil former for minimum damping

 

Product details

 

SB Acoustics Midrange Woofer is an excellent SB Acoustics Ferrite magnet midrange/midwoofer, featuring a high damping Butyl rubber surround for non-resonant sound character. Fitted with a proprietary cone material with natural fibres made in0house, 1″ voice coil. Very good vented cast aluminium chassis for optimum strength and low compression. Fs 58 Hz, good level extended response up to 5KHz.

Specifications

Article numberSB12MNRX2-25-4
EAN0691046949134
Woofer SeriesSB Acoustics NRX Norex series
Woofer TypeMidwoofer
Nominal Diameter4"
Power Handling (RMS)50 Watts
Power Handling (max)–
Continuous Program Power–
Impedance (Z)4 ohms
Sensitivity (SPL at 1m / 2.83V)91 dB
Frequency Response–
Voice Coil Diameter25.4 mm
Magnet Weight0.4 kg
DC Resistance (Re)3.2 ohms
Voice Coil Inductance (Le)0.15 mH
Resonant Frequency (Fs)58 Hz
Mechanical Q (Qms)3.60
Electromagnetic Q (Qes)0.29
Total Q (Qts)0.27
Diaphragm Mass Inc. Airload (Mms)4.1 g
Moving Mass Of Diaphragm (Mmd)–
Mechanical Compliance of Suspension (Cms)1.77 mm/N
Surface Area of Cone (Sd)50 cm2
Volume of Displacement (Vd)–
BL Product (BL)4.1 Tm
Compliance Equivalent Volume (Vas)6.3 L
Maximum Linear Excursion (Xmax)4.4 mm
Driver's Mechanical Losses (Rms)0.4 kg/s
Cone / Diaphragm Material–
Surround MaterialButyl Rubber
Voice Coil Wire MaterialCopper-Clad Aluminum Wire (CCAW)
Voice Coil Former–
Dual Voice Coilcross
Basket / Frame MaterialAluminum
Magnet Material–
Shieldedcross
Overall Outside Diameter123 mm
Overall Depth70.1 mm
Baffle Cutout Diameter–
Bolt Circle Diameter–
# Mounting Holes4
Mounting Hole Diameter4.3 mm
Sealed Volume–
Sealed F3–
Vented Volume–
Vented F3–
Article numberSB12MNRX2-25-4
EAN0691046949134
Additional information
Woofer SeriesSB Acoustics NRX Norex series
Woofer TypeMidwoofer
Nominal Diameter4″
Power Handling (RMS)50 Watts
Impedance (Z)4 ohms
Sensitivity (SPL at 1m / 2.83V)91 dB
Voice Coil Diameter25.4 mm
Magnet Weight0.4 kg
DC Resistance (Re)3.2 ohms
Voice Coil Inductance (Le)0.15 mH
Resonant Frequency (Fs)58 Hz
Mechanical Q (Qms)3.60
Electromagnetic Q (Qes)0.29
Total Q (Qts)0.27
Diaphragm Mass Inc. Airload (Mms)4.1 g
Mechanical Compliance of Suspension (Cms)1.77 mm/N
Surface Area of Cone (Sd)50 cm²
BL Product (BL)4.1 Tm
Compliance Equivalent Volume (Vas)6.3 L
Maximum Linear Excursion (Xmax)4.4 mm
Driver's Mechanical Losses (Rms)0.4 kg/s
Surround MaterialButyl Rubber
Voice Coil Wire MaterialCopper-Clad Aluminum Wire (CCAW)
Dual Voice Coilcross
Basket / Frame MaterialAluminum
Shieldedcross
Overall Outside Diameter123 mm
Overall Depth70.1 mm
# Mounting Holes4
Mounting Hole Diameter4.3 mm
Shipping & Delivery
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