Nominal Basket Diameter 15"  380mm
Nominal Impedance 8 ohm
Nominal Power Handling(AES) 350W
Continuous Power Handling 700W
Resonance 33HZ
Usable Frequency Range 33HZ-4KHZ
Sensitivity 95 dB
Magnet Weight 60 oz
Voice coil (TIL) 3" 75.5mm
THIELE&SMALL PARAMETERS 
Resonant Frequency  fs 33HZ
DC Resistance                      Re 6.2ohm
Mechanical Q                         Qms 8.354
Electromagnetic Q                    Qes 0.527
Total Q                              Qts 0.496
Compliance Equivalent Volume         VAS 243.368 Ltr
Mechanical Compliance of Suspension (Cms)  240.051uM/N
BL Product                           BL 15T-M
Diaphragm Mass Lnc.Airload           Mms 96.544 grams
MOUNTING INFORMATION 
Overall Diameter           385mm
Baffle Hole Diameter     350mm
Mounting Holes Diameter   6.5*9mm
Mounting Holes P.C.D     371mm
Depth     153mm
Net Weight 5kg
Shipping Weight 6kg
Packing Size: 810x410x385mm (4PCS)
20”/880pcs  40”/1820pcs  40”H/2120pcs