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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 Mid / High Range Woofer with RMS 20 Watts
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acoustic bass,Mid and High Range Woofer,subwoofer,speakers
acoustic bass,Mid and High Range Woofer,subwoofer,speakers
acoustic bass,Mid and High Range Woofer,subwoofer,speakers
acoustic bass,Mid and High Range Woofer,subwoofer,speakers
acoustic bass,Mid and High Range Woofer,subwoofer,speakers

4 Inch Mid / High Range Woofer with RMS 20 Watts

Model NO.
4SA25-1
Delivery:
FOB
Minimum order quantity:
500 sets
Supply Ability:
60,000 sets / Month
Country of Origin:
Ningbo, China
Stock Time:
35 Days
Nominal Diameter 4 Inch / (105 x 105 mm), Power Handling 20 watts, Sensitivity 89 dB, Frequency Response 135 Hz - 18 kHz, Voice Coil Diameter 1 Inch / 25 mm
Quantity:
 
Listen Acoustic 4 inch aluminum woofer full range woofer
Features

1. Nominal Diameter 4"/ (105 x 105 mm)
2. Power Handling 20 watts
3. Sensitivity 89 dB
4. Frequency Response 135 Hz - 18 kHz
5. Voice Coil Diameter 1.0"/ 25 mm
6. Ferrite Magnet 10 Oz
7. Pressed Steel Chassis type
8. Applications as mid high range woofer for PA speaker

Specifications

SPECIFICATIONS
Model No.4SA25-1
Nominal Diameter4"/ (105 x 105 mm)
RMS Power20 watts
MAX Power40 watts
Sensitivity (1w/1m)89 dB
Frequency Range135 Hz - 18 kHz
Voice Coil Diameter1.0"/ 25 mm
Available Impedances4 / 8 Ω
Magnet Size10 Oz
Magnet MaterialFerrite
Chassis typePressed Steel
Voice Coil MaterialCopper clad aluminium
Former MaterialKapton
Dust Dome MaterialAluminium
Suspension MaterialPolycotton
Surround MaterialPU
Cone MaterialPaper
THIELE SMALL PARAMETERS
Fs125 Hz
Qes1.31
Qms6.38
Qts1.09
Vas1.41 L
Sd0.0053 m2
η00.20%
Mms4.44 g
BI4.07 Txm
Cms0.36 mm/N
Rms0.55 WM
Le1k0.12 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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