Eminence Beta 8A 8 Inch Loudspeaker

SPECIFICATION

• Nominal Basket Diameter 8", 203.2mm
• Nominal Impedance* 8 ohms
• Power Rating**
• Watts 225W
• Music Program 450W
• Resonance 65Hz
• Usable Frequency Range 78Hz - 4.5kHz
• Sensitivity*** 95.1dB
• Magnet Weight 34 oz.
• Gap Height 0.31", 7.92mm
• Voice Coil Diameter 2", 50.8mm

THIELE & SMALL PARAMETERS

• Resonant Frequency (fs) 65Hz
• DC Resistance (Re) 5.99
• Coil Inductance (Le) 0.49mH
• Mechanical Q (Qms) 4.95
• Electromagnetic Q (Qes) 0.42
• Total Q (Qts) 0.38
• Compliance Equivalent Volume (Vas) 23.3 liters / 0.82 cu.ft.
• Peak Diaphragm Displacement Volume (Vd) 63cc
• Mechanical Compliance of Suspension (Cms) 0.37mm/N
• BL Product (BL) 9.6 T-M
• Diaphragm Mass Inc. Airload (MMs) 16 grams
• Efficiency Bandwidth Product (EBP) 156
• Maximum Linear Excursion (Xmax) 3mm
• Surface Area of Cone (Sd) 210 cm2
• Maximum Mechanical Limit (Xlim) 7.4mm

MOUNTING INFORMATION

• Recommended Enclosure Volume
• Sealed 5.7-9.9 liters / 0.2-0.35 cu.ft.
• Vented 8.5-19 liters / 0.3-0.67 cu.ft.
• Driver Volume Displaced 46.3 cu.in. / 0.76 liters
• 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 kgs

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
• Dust Cap Composition Solid composition paper dust cap