Nominal Basket Diameter 15"  385mm
Nominal Impedance 16 ohm
Nominal Power Handling(AES) 125W
Continuous Power Handling 250W
Resonance 44HZ
Usable Frequency Range 50HZ-18KHZ
Sensitivity 96 dB
Magnet Weight 54 oz
Voice coil (TIL) 1.8" 45mm
THIELE&SMALL PARAMETERS 
Resonant Frequency fs 44HZ
DC Resistance Re 12ohm
Mechanical Q Qms 7.48
Electromagnetic Q Qes 0.96
Total Q Qts 0.85
Compliance Equivalent Volume VAS 242.2 Ltr
Mechanical Compliance of Suspension (Cms)  247.9 uM/N
BL Product BL 12.29 T-M
Diaphragm Mass Lnc.Airload Mms 53.16 grams
MOUNTING INFORMATION 
Overall Diameter           385mm
Baffle Hole Diameter     351mm
Mounting Holes Diameter    6.5*9mm
Mounting Holes P.C.D      370mm
Depth      160mm
Net Weight 4.6kg
Shipping Weight 6.1kg
Packing Size: 810x410x395mm (4PCS)
20”/840pcs  40”/1760pcs  40”H/2060pcs