Eminence Beta 8" Lautsprecher 250 W 8 Ohm

Beta-8CX American Standard Series
Recommended for professional audio mid-range reproduction in sealed enclosures. Also suitable for mid-bass or floor monitor applications in vented 2-way cabinets.

SPECIFICATION

• Nominal Basket Diameter 8", 203.2 mm
• Nominal Impedance 8 ohms
• Power Rating 250 W
• Resonance 54 Hz
• Usable Frequency Range 88 Hz - 20 kHz
• Sensitivity 92
• Magnet Weight 38 oz.
• Gap Height 0.312", 7.92 mm
• Voice Coil Diameter 2", 50.8 mm

THIELE & Small Parameters

• Resonant Frequency (fs) 54 Hz
• DC Resistance (Re) 5.53
• Coil Inductance (Le) 0.96 mH
• Mechanical Q (Qms) 7.67
• Electromagnetic Q (Qes) 0.31
• Total Q (Qts) 0.30
• Compliance Equivalent Volume 34.9 liters (Vas) 34.9 liters / 1.2 cu. ft.
• Peak Diaphragm Displacement Volume 66 cc
• Mechanical Compliance of Suspension 0.59 mm/N
• BL Product (BL) 9.5 T-M
• Diaphragm Mass inc. Airload (Mms) 15 grams
• Efficiency Bandwidth Product (EBP) 174
• Maximum Linear Excursion (Xmax) 3.2 mm
• Surface Area of Cone (Sd) 205.9 cm²
• Maximum Mechanical Limit (Xlim) 6.9 mm

MOUNTING Information

• Recommended Enclosure Volume
• 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", 209.2 mm
• Baffle Hole Diameter 7.13", 181 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.22", 5.5 mm
• Mounting Holes B.C.D. 7.75", 196.9 mm
• Depth 3.5", 89 mm

MATERIALS of Construction

• Copper voice coil
• Polyimide former
• Ferrite magnet
• Extended core
• Pressed steel basket
• Paper Cone
• Cloth cone edge
• Screened cloth dust cap

Achtung: Adapter EAPT3 und Hochtontreiber APT50 notwendig!