EMINENCE BETA-8A (225W)

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Eminence BETA-8A (225W)

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Caractéristiques :

Nominal Basket Diameter  8", 203.2mm
Impedance 8 ohms 
Power Rating 225Wrms
Resonance 58Hz
Usable Frequency Range 55Hz - 4kHz
Sensitivity click here for guide
Magnet Weight 34oz.
Gap Height  0.312", 7.94mm
Voice Coil Diameter    2", 50.8mm
Mounting Information 
Recommended Enclosure Volume  8.5 - 15.5 liters
   (vented)  0.3 - 0.55 cu. ft.
Overall Diameter     8.24", 209.2mm
Baffle Hole Diameter   7.13", 181mm
Front Sealing Gasket fitted as standard
Rear Sealing Gasket  fitted as standard
Mounting Holes Diameter  0.218", 5.5mm
Mounting Holes B.C.D.  7.75", 196.9mm
Depth 3.5", 89mm
Shipping Weight         7.6lbs., 3.5 kg.
Thiele-Small Parameters
Resonant Frequency (fs) 58Hz
Impedance (Re)    6.36 ohms
Coil Inductance (Le) 0.58mH
Electromagnetic Q (Qes) 0.36
Mechanical Q (Qms) 6.54
Total Q (Qts) 0.34
Compliance Equivalent Volume (Vas) 35.4 liters
  1.25 cu. ft.
Peak Diaphragm Displacement Volume (Vd) 65cc
Mechanical Compliance of Suspension (Cms) 0.55mm/N
BL Product (BL) 9.4 T-M
Diaphragm Mass inc. Airload (Mms) 14 grams
Equiv. Resistance of Mechanical 
          Suspension Loss (Rms) 0.76N*sec/M
Efficiency Bandwidth Product (EBP) 163
Voice Coil Overhang (Xmax) 3.0mm
Surface Area of Cone (Sd) 214.1cm2
Impedance at Resonance (Zmax) 123 ohms
Maximum Mechanical Limit (Xmech) 14.73mm

 

 
Recommended Enclosure
Sealed 5.7-9.9 liters/0.2-0.35 cu.ft.
Vented 8.5-19 liters/0.3-0.67 cu.ft.
Overall Diameter 8.24", 209.2mm
Baffle Hole Diameter 7.13", 181mm
Front Sealing Gasket fitted as standard
Rear Sealing Gasket fitted as standard
Mounting Holes Diameter 0.22", 5.5mm
Mounting Holes B.C. D. 7.75", 196.9mm
Depth 3.5", 89mm
Net Weight 6.6 lbs., 3 kg
Shipping Weight 7.4 lbs., 3.4 kg
MATERIALS OF CONSTRUCTION
Coil Construction Aluminum voice coil
Coil Former Polyimide former
Magnet Composition Ferrite magnet
Core Details Vented core
Basket Materials Pressed steel basket
Cone Composition Paper Cone
Cone Edge Composition Cloth cone edge
Dustcap Composition Solid composition paper dust cap

Garantie : 12 Mois

 

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EMINENCE BETA-8A (225W)

EMINENCE BETA-8A (225W)

Eminence BETA-8A (225W)