Specification:

• Dimension : 6.5 inch
• Nominal impedance: 4OHM+/- 15%
• FO: 89 HZ+/-20% (without baffle)
• Output SPL:  85dB+/- 3dB, at PST from 1W/1M
• Sweep test: sine wave 9V, from 89k – 20K  HZ (must be normal
• Bottoming test: sine wave,  10.5V, from 89 – 20K  HZ (must be normal)
• Power input:
  – Nom: 20W
  – Max: 40WPower input:
• Life test:
  – White noise
  – 20W
  – 96H
• Magnet:
  – Size: 80*40*12
  – Grade: Y25
  – Weight: 10 OZ
• Voice coil: 25.5 mm  2(L)
  – Winding length: 7.5(mm)
  – Former material:  ASV/2L
• Qms: 4.048
• BL: 2.917
• Qes: 2.613
• MMs: 11.578
• Qts: 1.588
• Vas: 6.780