Nominal Basket Diameter 15" 380mm
Nominal Impedance 8 ohm
Nominal Power Handing (AES) 800W
Continuous Power Handing 1600W
Resonance 37HZ
Usable Frequency Range 37HZ-1.5KHZ
Sensitivity 97 dB
Magnet Weight 126 oz
Voice coil (TIL) 4" 99.2mm
THIELE&SMALL PARAMETERS 
Resonant Frequency fs 37HZ
DC Resistance Re 4.8 ohm
Mechanical Q Qms 8.7
Electromagnetic Q  Qes 0.36
Total Q Qts 0.33
Compliance Equivalent Volume VAS 142.5 Ltr
Mechanical Compliance of Suspension (Cms) 0.15mm/N
BL Product BL 24.7  T-M
Diaphragm Mass Inc.Airload Mms 148 grams
MOUNTING INFORMATION 
Overall Diameter 393mm
Baffle Hole Diameter 355mm
Mounting Holes Diameter 7mm
Mounting Holes P.C.D 374mm
Depth 168mm
Net Weight 11.6 kg
Shipping Weight 13.1 kg
Packing Size: 420x420x415mm (2PCS)
20”/760pcs  40”/1580pcs  40”H/1860pcs