Recommended for professional audio as a woofer in sealed and vented enclosures.

• Nominal Basket Diameter 15", 381 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 300 W / Music Program 600 W
• Resonance 35 Hz
• Usable Frequency Range 45 Hz - 3.7 kHz
• Sensitivity 98.2
• Magnet Weight 34 oz.
• Gap Height 0.312", 7.92 mm
• Voice Coil Diameter 2", 50.8 mm

• Resonant Frequency (fs) 35 Hz
• DC Resistance (Re) 6.32
• Coil Inductance (Le) 1.10 mH
• Mechanical Q (Qms) 8.10
• Electromagnetic Q (Qes) 0.63
• Total Q (Qts) 0.58
• Compliance Equivalent Volume (Vas) 334.6 liters / 11.8 cu. ft.
• Peak Diaphragm Displacement Volume (Vd) 330 cc
• Mechanical Compliance of Suspension (Cms) 0.35 mm/N
• BL Product (BL) 11.5 T-M
• Diaphragm Mass inc. Airload (Mms) 60 grams
• Efficiency Bandwidth Product (EBP) 56
• Maximum Linear Excursion (Xmax) 4.0 mm
• Surface Area of Cone (Sd) 823.7 cm²
• Maximum Mechanical Limit (Xlim) 11.6 mm

• Recommended Enclosure Volume 
  Sealed 45-62 liters/1.6-2.2 cu.ft. 
  Vented 99-175.6 liters/3.5-6.2 cu.ft.
• Overall Diameter 15.15", 384.8 mm
• Baffle Hole Diameter 13.77", 349.6 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.25", 6.4 mm
• Mounting Holes B.C.D. 14.56", 369.9 mm
• Depth 6.05", 154 mm

• Copper voice coil
• Polyimide former
• Ferrite magnet
• Vented and extended core
• Pressed steel basket
• Paper Cone
• Cloth cone edge
• Solid composition paper dust cap