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Ningbo Listen-Acoustic Manufacturing Ltd.,315000About UsNo.722, Changyang Road, Jiangbei District, Ningbo, ChinaListen-Acoustic was founded in 2010 in Ningbo China. We manufacture all essential components of loudspeaker boxes inhouse: Production of speakers, crafting of housings, and complex electronics ranging from passive crossovers to Class A/B amplifiers to digital high-power amplifiers with DSP and universal SMPS. Last but not least, we are extremely proud of the excellent sound tuning that is being applied by our team of engineers. Please enjoy !Ningbo Listen-Acoustic Manufacturing Ltd.,315000About UsNo.722, Changyang Road, Jiangbei District, Ningbo, ChinaListen-Acoustic was founded in 2010 in Ningbo China. We manufacture all essential components of loudspeaker boxes inhouse: Production of speakers, crafting of housings, and complex electronics ranging from passive crossovers to Class A/B amplifiers to digital high-power amplifiers with DSP and universal SMPS. Last but not least, we are extremely proud of the excellent sound tuning that is being applied by our team of engineers. Please enjoy !Ningbo Listen-Acoustic Manufacturing Ltd.,Ningbo Listen-Acoustic Manufacturing Ltd.,Ningbo Listen-Acoustic Manufacturing Ltd.,Ningbo Listen-Acoustic Manufacturing Ltd.,Ningbo Listen-Acous

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  4. 4 Inch Economical Bass / Mid Range Woofer with RMS 25 Watts
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acoustic bass,subwoofer,speakers,Economical Bass and Mid Range Woofer
acoustic bass,subwoofer,speakers,Economical Bass and Mid Range Woofer
acoustic bass,subwoofer,speakers,Economical Bass and Mid Range Woofer
acoustic bass,subwoofer,speakers,Economical Bass and Mid Range Woofer
acoustic bass,subwoofer,speakers,Economical Bass and Mid Range Woofer
acoustic bass,subwoofer,speakers,Economical Bass and Mid Range Woofer
acoustic bass,subwoofer,speakers,Economical Bass and Mid Range Woofer

4 Inch Economical Bass / Mid Range Woofer with RMS 25 Watts

Model NO.
4SB25-2
Delivery:
FOB
Minimum order quantity:
500 pieces
Supply Ability:
60,000 pieces / Month
Country of Origin:
Ningbo, China
Stock Time:
35 Days
Nominal Diameter 4 Inch / 105*105 mm, Power Handling 25 watts, Sensitivity 86 dB, Frequency Response 130 Hz -18 kHz, Voice Coil Diameter 1.0 Inch / 25 mm
Quantity:
Listen Acoustic 4inch Mid Range woofer acoustic bass
Features

1. Nominal Diameter 4 inch / （105 x105 mm）
2. Power Handling 25 watts
3. Sensitivity 86 dB
4. Frequency Response 130 Hz - 18 kHz
5. Voice Coil Diameter 1.0 inch / 25 mm
6. Dual Magnet 8+6.4 Oz
7. Pressed Steel Chassis type
8. Applications as an economical bass / mid range woofer for PA speaker

Specifications

SPECIFICATIONS
Model No.4SB25-2
Nominal Diameter4"/ (105 x 105 mm)
RMS Power25 watts
MAX Power50 watts
Sensitivity (1w/1m)86 dB
Frequency Range130 Hz - 18 kHz
Voice Coil Diameter1.0"/ 25 mm
Available Impedances16 Ω
Magnet Size8 + 6.4 Oz
Magnet MaterialFerrite
Chassis typePressed Steel
Voice Coil MaterialCopper
Former MaterialKapton
Dust Dome MaterialPaper
Suspension MaterialPolycotton
Surround MaterialFabric
Cone MaterialPaper
THIELE SMALL PARAMETERS
Fs120 Hz
Qes1.14
Qms6.74
Qts0.98
Vas1.43 L
Sd0.0049 m2
η00.20%
Mms4.22 g
BI6.43 Txm
Cms0.43 mm/N
Rms0.47 WM
Le1k0.52 mH
MOUNTING & DIMENSIONS & WEIGHT
Overall Diameter5.20"/ 132 mm
Bolt Circle Diameter 4.39"/ 111.5mm
Baffle Cut-out Diameter3.58"/ 91 mm
Overall Depth2.83"/ 72 mm
Net Weight0.70 kgs / 1.54 lbs

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Address
No.722, Changyang Road, Jiangbei District, Ningbo, China
TEL
+86-574-8786-5631
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