Eminence Alpha 6C - 4 Ohmi

Specifications:

• Nominal Basket Diameter 6.5", 165 mm
• Nominal Impedance 4 ohms
• Power Rating Watts 100 W / Music Program 200 W
• Resonance 118 Hz
• Usable Frequency Range 85 Hz - 6 kHz
• Sensitivity 93.6
• Magnet Weight 20 oz.
• Gap Height 0.25", 6.35 mm
• Voice Coil Diameter 1.5", 38.1 mm

Thiele & Small Parameters

• Resonant Frequency (fs) 118 Hz
• DC Resistance (Re) 7.2
• Coil Inductance (Le) 0.19 mH
• Mechanical Q (Qms) 5.68
• Electromagnetic Q (Qes) 0.60
• Total Q (Qts) 0.54
• Compliance Equivalent Volume (Vas) 5.8 liters / 0.2 cu. ft.
• Peak Diaphragm Displacement Volume (Vd) 44cc
• Mechanical Compliance of Suspension (Cms) 0.26 mm/N
• BL Product (BL) 8.0 T-M
• Diaphragm Mass inc. Airload (Mms) 7 grams
• Efficiency Bandwidth Product (EBP) 197 Maximum Linear Excursion (Xmax) 3.5 mm
• Surface Area of Cone (Sd) 126.7 cm²
• Maximum Mechanical Limit (Xlim) 4.0 mm

Mounting Information:

• Recommended Enclosure Volume
• Sealed 2.8-5.7 liters / 0.1-0.2 cu. ft.
• Vented 3.4-15.6 liters / 0.12-0.55 cu. ft.
• Overall Diameter 6.59", 167.4 mm
• Baffle Hole Diameter 5.69", 144.5 mm
• Front Sealing Gasket fitted as standard
• Rear Sealing Gasket fitted as standard
• Mounting Holes Diameter 0.23", 5.7 mm
• Mounting Holes B.C.D. 6.06", 154 mm
• Depth 2.8", 71 mm

Materials of Construction:

• Copper voice coil
• Polyimide former
• Ferrite magnet
• Vented and extended core
• Pressed steel basket
• Paper Cone
• Cloth cone edge
• Solid composition paper dust cap