Eminence Beta 6A

Specifications:
 

• Nominal Basket Diameter 6.5", 165.1mm
• Nominal Impedance* 8 ohms
• Power Rating, Watts 175W, Music Program 350W
• Resonance 122.57Hz
• Usable Frequency Range 95Hz - 4kHz
• Sensitivity*** 94dB
• Magnet Weight 30 oz.
• Gap Height 0.25", 6.35mm
• Voice Coil Diameter 2", 50.8mm












 
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• Thiele & Small Parameters:
   
  • Resonant Frequency (fs) 122.57Hz
  • DC Resistance (Re) 5.18
  • Coil Inductance (Le) 0.43mH
  • Mechanical Q (Qms) 3.46
  • Electromagnetic Q (Qes) 0.66
  • Total Q (Qts) 0.56
  • Compliance Equivalent Volume (Vas) 3.51 liters / 0.12 cu.ft.
  • Peak Diaphragm Displacement Volume (Vd) 61.05cc
  • Mechanical Compliance of Suspension (Cms) 0.15mm/N
  • BL Product (BL) 8.13 T-M
  • Diaphragm Mass Inc. Airload (MMs) 10.93 grams
  • Efficiency Bandwidth Product (EBP) 185.4
  • Maximum Linear Excursion (Xmax) 4.5mm
  • Surface Area of Cone (Sd) 129.9 cm2
  • Maximum Mechanical Limit (Xlim) 5.7mm
  
  
  Mounting Information:
   
  • Recommended Enclosure Volume Sealed 2.38-9999. liters / 0.08-9999. cu.ft. Vented 5.1-14.16 liters / 0.18-0.5 cu.ft.
  • Driver Volume Displaced 33.8 cu.in. / 0.6 liters
  • Overall Diameter 6.59", 167.39mm
  • Baffle Hole Diameter 5.65", 143.5mm
  • Front Sealing Gasket Fitted as standard
  • Rear Sealing Gasket Fitted as standard
  • Mounting Holes Diameter 0.23", 5.84mm
  • Mounting Holes B.C.D. 6.06", 153.92mm
  • Depth 2.66", 67.56mm
  • Net Weight 5.6 lbs, 2.54 kg
  • Shipping Weight 6.3 lbs, 2.86 kgs
  
  
  Materials of Construction:
   
  • Coil Construction Aluminum voice coil
  • Coil Former Polyimide former
  • Magnet Composition Ferrite magnet
  • Core Details Vented and extended core
  • Basket Materials Pressed steel basket
  • Cone Composition Water resistant paper cone
  • Cone Edge Composition Treated cloth cone edge
  • Dust Cap Composition Water resistant treated paper dust cap

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