Nominal Basket Diameter 15" 380mm
Nominal Impedance 8 ohm
Nominal Power Handling (AES) 400W
Continuous Power Handling 800W
Resonance 39HZ
Usable Frequency Range 39HZ-2.5KHZ
Sensitivity 95.5 dB
Magnet Weight NEODYMIUM
Voice coil (TIL) 3" 75.5mm
THIELE&SMALL PARAMETERS 
Resonant Frequency fs 39HZ
DC Resistance Re 5.8 ohm
Mechanical Q Qms 8.41
Electromagnetic Q Qes 0.56
Total Q Qts 0.53
Compliance Equivalent Volume VAS 171.74 Ltr
Mechanical Compliance of Suspension (Cms) 169.4um/N
BL Product BL 16 T-M
Diaphragm Mass Inc.Airload Mms  96 grams
MOUNTING INFORMATION 
Overall Diameter 394mm
Baffle Hole Diameter 354mm
Mounting Holes Diameter 7mm
Mounting Holes P.C.D 373mm
Depth 167mm
Net Weight 4 kg
Shipping Weight 5 kg
Packing Size: 420x420x415mm (2PCS)
20”/770pcs  40”/1590pcs  40”H/1860pcs