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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
1 in stock
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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 number | SB12MNRX2-25-4 |
| EAN | 0691046949134 |
| Woofer Series | SB Acoustics NRX Norex series |
| Woofer Type | Midwoofer |
| Nominal Diameter | 4" |
| 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 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 | – |
| Article number | SB12MNRX2-25-4 |
| EAN | 0691046949134 |
Additional information
| Woofer Series | SB Acoustics NRX Norex series |
|---|---|
| Woofer Type | Midwoofer |
| Nominal Diameter | 4″ |
| Power Handling (RMS) | 50 Watts |
| Impedance (Z) | 4 ohms |
| Sensitivity (SPL at 1m / 2.83V) | 91 dB |
| 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 |
| 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 Material | Butyl Rubber |
| Voice Coil Wire Material | Copper-Clad Aluminum Wire (CCAW) |
| Dual Voice Coil | cross |
| Basket / Frame Material | Aluminum |
| Shielded | cross |
| Overall Outside Diameter | 123 mm |
| Overall Depth | 70.1 mm |
| # Mounting Holes | 4 |
| Mounting Hole Diameter | 4.3 mm |
Shipping & Delivery
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