EMINENCE BETA-8CX (250W)

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Eminence BETA-8CX (250W)

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Caractéristiques :

Nominal Basket Diameter  8", 203.2mm
Impedance 8 ohms 
Power Rating 250Wrms
Resonance 54Hz
Usable Frequency Range 60Hz - 20kHz
   (with APT-50 and pxb2:3k5)
Sensitivity click here for guide
Magnet Weight 38oz.
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         7.8lbs., 3.6 kg.
Thiele-Small Parameters
Resonant Frequency (fs) 54Hz
Impedance (Re)    5.53 ohms
Coil Inductance (Le) 0.96mH
Electromagnetic Q (Qes) 0.31
Mechanical Q (Qms) 7.67
Total Q (Qts) 0.30
Compliance Equivalent Volume (Vas) 34.9 liters
  1.23 cu. ft.
Peak Diaphragm Displacement Volume (Vd) 62cc
Mechanical Compliance of Suspension (Cms) 0.59mm/N
BL Product (BL) 9.5 T-M
Diaphragm Mass inc. Airload (Mms) 15 grams
Equiv. Resistance of Mechanical 
          Suspension Loss (Rms) 0.66N*sec/M
Efficiency Bandwidth Product (EBP) 175
Voice Coil Overhang (Xmax) 3.0mm
Surface Area of Cone (Sd) 205.9cm2
Impedance at Resonance (Zmax) 143 ohms
Maximum Mechanical Limit (Xmech) 13.72mm

 

 
Recommended Enclosure
Sealed 5.7-8.5 liters/ 0.2-0.3 cu.ft.
Vented 8.5-17 liters/0.3-0.6 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 6.8 lbs., 3.1 kg
Shipping Weight 7.5 lbs., 3.4 kg
MATERIALS OF CONSTRUCTION
Coil Construction Copper voice coil
Coil Former Polyimide former
Magnet Composition Ferrite magnet
Core Details Extended core
Basket Materials Pressed steel basket
Cone Composition Paper Cone
Cone Edge Composition Cloth cone edge
Dustcap Composition Screened cloth dust cap

Garantie : 12 Mois

 

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EMINENCE BETA-8CX (250W)

EMINENCE BETA-8CX (250W)

Eminence BETA-8CX (250W)