Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure.

• Nominal Basket Diameter 12", 304.8 mm
• Nominal Impedance 8 ohms
• Power Rating Watts 150 W / Music Program 450 W
• Resonance 49 Hz
• Usable Frequency Range 51 Hz - 4.3 kHz
• Sensitivity 95.6
• Magnet Weight 20 oz.
• Gap Height 0.25", 6.35 mm
• Voice Coil Diameter 1.5", 38.1 mm

• Resonant Frequency (fs) 49 Hz
• DC Resistance (Re) 6.3
• Coil Inductance (Le) 0.79 mH
• Mechanical Q (Qms) 6.53
• Electromagnetic Q (Qes) 0.88
• Total Q (Qts) 0.77
• Compliance Equivalent Volume (Vas) 121.5 liters / 4.3 cu. ft.
• Peak Diaphragm Displacement Volume (Vd) 125 cc
• Mechanical Compliance of Suspension (Cms) 0.32 mm/N
• BL Product (BL) 8.5 T-M
• Diaphragm Mass inc. Airload (Mms) 33 grams
• Efficiency Bandwidth Product (EBP) 56
• Maximum Linear Excursion (Xmax) 2.4 mm
• Surface Area of Cone (Sd) 519.5 cm²
• Maximum Mechanical Limit (Xlim) 6.6 mm

• Recommended Enclosure Volume
  Sealed 17-22.7 liters / 0.6-0.8 cu. ft.
  Vented 56.6-113.3 liters / 2-4 cu. ft.
• Overall Diameter 12.26", 311.4 mm
• Baffle Hole Diameter 11", 279.5 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. 11.71", 297.5 mm
• Depth 4.73", 120 mm

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