Nominal Basket Diameter 15"  380mm
Nominal Impedance 8 ohm
Nominal Power Handling(AES) 1200W
Continuous Power Handling 2400W
Resonance 44HZ
Usable Frequency Range 44HZ-1.5KHZ
Sensitivity 97 dB
Magnet Weight NEODYMIUM
Voice coil (TIL) 4" 99.2mm
THIELE&SMALL PARAMETERS 
Resonant Frequency fs 44HZ
DC Resistance Re 5.6 ohm
Mechanical Q Qms 6.7
Electromagnetic Q Qes 0.2
Total Q Qts 0.19
Compliance Equivalent Volume VAS 59.58 Ltr
Mechanical Compliance of Suspension (Cms)  57.25uM/N
BL Product BL 41T-M
Diaphragm Mass Lnc.Airload Mms 210 grams
MOUNTING INFORMATION 
Overall Diameter 394mm
Baffle Hole Diameter 354mm
Mounting Holes Diameter 7mm
Mounting Holes P.C.D 373mm
Depth 176mm
Net Weight 5.8kg
Shipping Weight 6.8kg
Packing Size: 420x420x435mm (2PCS)
20”/730pcs  40”/1510pcs  40”H/1770pcs