Nominal Basket Diameter 12"  305mm
Nominal Impedance 8 ohm
Nominal Power Handling(AES) 250W
Continuous Power Handling 500W
Resonance 49HZ
Usable Frequency Range 49HZ-4.5KHZ
Sensitivity 94 dB
Magnet Weight 50 oz
Voice coil (TIL) 2.5" 60.8mm
THIELE&SMALL PARAMETERS 
Resonant Frequency fs 49HZ
DC Resistance Re 6.4ohm
Mechanical Q Qms 9.582
Electromagnetic Q Qes 0.835
Total Q Qts 0.768
Compliance Equivalent Volume VAS 68.897 Ltr
Mechanical Compliance of Suspension (Cms)  183.135uM/N
BL Product BL 12T-M
Diaphragm Mass Lnc.Airload Mms 57.867 grams
MOUNTING INFORMATION 
Overall Diameter           310mm
Baffle Hole Diameter     279mm
Mounting Holes Diameter   6.5*9mm
Mounting Holes P.C.D     298mm
Depth     135mm
Net Weight 3.8kg
Shipping Weight 4.8kg

Packing Size: 655x335x320mm (4PCS)
20”/1600pcs  40”/3300pcs  40”H/3880pcs