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By certification 
Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 12" full range speaker manufacturers and suppliers, providing with 12" dual cone speaker wholesale, welcome to import high quality products from our factory.
SD-120037A is a 12” full range dual cone speaker. It is a low cost speaker with wide extension frequency and suitable for inexpensive cabinets.
Speakers Feature
150watt full range speaker
Triple roll press paper cone
Specifications
Nominal Diameter: 305 mm/ 12 inch
Rated Impedance: 8 OHM
Sensitivity: 98 dB
Frequency Range: 50 Hz –8000Hz
Peak Power: 300 W
RMS Power: 150 W
Voice Coil Diameter: 35mm/ 1.4 inch
Voice Coil Material: Copper
Number of layers: Outside
Cone Material: Paper Cone
Surround Material: Cloth
Surround Design: Triple– roll
Basket Materials: Metal
Magnet Materials: 39Oz Ferrite
T/S Parameters
Resonance Frequency: 53Hz
Electrical Quality Factor: 1.606
Mechanical Quality Factor: 4.698
Total Quality Factor: 1.197
Cone Area : 57.680cm²
Mechanical Mass : 53.510g
BL: 8.502T.M.
Mounting Information:
Overall Diameter: 305mm/12inch
Baffle Cutout Diameter: 293mm/11.53 inch
Bolt Circle Diameter: 263mm/10.35 inch
Overall Depth: 126mm/ 4.96 inch
