SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer

Name: SB Acoustics SB12MNRX2-25-4 4" Midrange Woofer
Brand: SB Acoustics
SKU: SB12MNRX2-25-4
Price: 59.95 EUR
Availability: InStock
Rating: 5 (2 reviews)

2 reviews

Brand: SB Acoustics

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4" | 4 Ω

€ 49,55€ 59,95 2 In stock: delivery time 1-4 business days

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Product 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 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.

Specifications

Article number: SB12MNRX2-25-4
Woofer Series: NRX Series
Woofer Type: Midwoofer
Nominal Diameter: 4"
Power Handling (RMS): 50 watts
Power Handling (max): -
Continuous Program Power: -
Impedance (Z): 4 ohms
Sensitivity: 91 dB
Frequency Response: -
Voice Coil Diameter: 25.4 mm
Magnet Weight: 0.4 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 Material: Butyl Rubber
Voice Coil Wire Material: Copper-Clad Aluminum Wire (CCAW)
Voice Coil Former: -
Dual Voice Coil: cross
Basket / Frame Material: Aluminum
Magnet Material: -
Shielded: cross
Overall Outside Diameter: 123 mm
Overall Depth: 70.1 mm
Baffle Cutout Diameter: -
Bolt Circle Diameter: -
# Mounting Holes: 4
Mounting Hole Diameter: 4.3 mm
Sealed Volume: -
Sealed F3: -
Vented Volume: -
Vented F3: -

Data sheet

Reviews

2 reviews

5 from 5Based on 2 reviews

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5 of 5

No description was given

By Zoltan M. on 22 November 2019

5 of 5

I bought (probably the 1st) 4pc from this midrange for a 3,5way active D'Appolito project. The driver's build quality is outstanding and not only beautiful but can make a big very detailed sound.

By Zoltan M. on 14 November 2019