SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer
SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer
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SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer
SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer

SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer

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€59.00
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SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer

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.

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SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer

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Product description

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

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SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer

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.

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Specifications

Article numberSB12MNRX2-25-4
Woofer SeriesNRX 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-
SB12MNRX25-4
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