• Nominal Diameter 8", 200 mm
• Overall Diameter 8,81",223.75 mm
• Bolt Circle Diameter 8.27", 210 mm
• Baffle Cutout Diameter 7.20", 183 mm
• Depth 4.36", 110.7 mm
• Flange and Gasket Thickness 0.42", 10.7 mm

• Minimum Impedance (LF) 6.6 Ohm / (HF) 6.4 Ohm
  
• Nominal Impedance (LF) 8 Ohm / (HF) 8 Ohm
  
• Nominal Power Handling*** (LF) 250 W / (HF) 30 W
  
• Maximum Power Handling**** (LF) 500 W / (HF) 60 W
• Sensitivity (1W/1m) (LF) 95 dB / (HF) 107 dB
• Frequency Range (LF) 75 - 4,000 Hz / (HF) 1,500 - 20,000 Hz
• Voice Coil Diameter (LF) 2.50", 65 mm / (HF) 1.46", 37 mm
  
• Winding Material (LF) Aluminium / (HF) Aluminium
• Former Material (LF) Glass Fiber / (HF) Kapton
• Winding Depth (LF) 0.49", 12,5 mm / (HF) 0.08", 2.1 mm
• Magnetic Gap Depth (LF) 0.31", 8 mm / (HF) 0.10", 2.6 mm
• Flux Density (LF) 1.2 T / (HF) 1.85 T
  

• Resonant Frequency (fs) 76 Hz
• DC Resistance (Re) (LF) 5.5 Ohm / (HF) 5.5 Ohm
• BL Product (BL)  13.7 N/A
• Diaphragm Mass inc. Airload (Mms) 22 g
• Mechanical Compliance of Suspension (Cms) 0.2 mm/N
• Rms 1 Kg/s
• Electromagnetic Q (Qes) 0.31
• Mechanical Q (Qms) 10.5
• Total Q (Qts) 0.3
• Compliance Equivalent Volume (Vas) 0.44 ft³, 12.6 dm³
• Surface Area of Cone (Sd) 32.71"², 211 cm²
• Maximum Linear Excursion (Xmax)* 4.92 mm
• Xdamage** 10.2 mm
• Coil Inductance (Le) 0.51 mH
• Diaphragm mass (Mmd) 20.3 g
• Eta Zero 1.74 %

Notes

• *Xmax = [(winding depth - magnetic gap depth) / 2] + (magnetic gap depth / 3)
• **Maximum excursion before permanent damage
• ***2 Hours Test According to AES 2-1984 Rev. 2003
• ****Maximum power is defined as 3dB greater than nominal power