4x Eminence Beta-8CX Pro 8" Coaxial Midrange Woofer 500W Speaker 8-Ohms

Product Description

Eminence BETA-8CX 8" / 8 ohms / 500 Watts

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 mm
Nominal Impedance*	8 Ω
Power Rating
Program Power	500 W
Watts	250 W
Resonance	62 Hz
Usable Frequency Range	95 Hz - 3.3 kHz
Sensitivity*	92.9 dB
Magnet Weight	38 oz.
Gap Height	0.31", 7.9 mm
Voice Coil Diameter	2", 51 mm
Thiele & Small Parameters
Resonant Frequency (fs)	62 Hz
DC Resistance (Re)	5.37 Ω
Coil Inductance (Le)	0.67m H
Mechanical Q (Qms)	6.57
Electromagnetic Q (Qes)	0.31
Total Q (Qts)	0.29
Compliance Equivalent Volume (Vas)	21.43 liters / 0.76 cu.ft.
Peak Diaphragm Displacement Volume (Vd)	67.2 cc
Mechanical Compliance of Suspension (Cms)	0.35 mm/N
BL Product (BL)	11.21 T-M
Diaphragm Mass Inc. Airload (MMs)	19 grams
Efficiency Bandwidth Product (EBP)	201
Maximum Linear Excursion (Xmax)	3.2 mm
Surface Area of Cone (Sd)	210 cm2
Maximum Mechanical Limit (Xlim)	6.9 mm
Mounting Information
Recommended Enclosure Volume
Sealed	3.4-9.91 liters / 0.12-0.35 cu.ft.
Vented	7.08-16.99 liters / 0.25-0.6 cu.ft.
Driver Volume Displaced	0.028 cu.ft. / 0.79 liters
Overall Diameter	8.24", 209.3 mm
Baffle Hole Diameter	7.13", 181.1 mm
Front Sealing Gasket	Yes
Rear Sealing Gasket	Yes
Mounting Holes Diameter	0.22", 5.6mm
Mounting Holes B.C.D.	7.75", 196.9mm
Depth	3.5", 88.9 mm
Net Weight	6.8 lbs, 3.08 kg
Shipping Weight	7.5 lbs, 3.4 kgs
Materials of Construction
Coil Construction	Copper voice coil
Coil Former	Kapton former
Magnet Composition	Ferrite magnet
Core Details	Tapered Coax

Basket Materials	Pressed steel basket
Cone Composition	Paper Cone
Cone Edge Composition	Sealed cloth cone edge
Dust Cap Composition	Zurette dust cap

Product Description

Eminence BETA-8CX 8" / 8 ohms / 500 Watts

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 mm
Nominal Impedance*	8 Ω
Power Rating
Program Power	500 W
Watts	250 W
Resonance	62 Hz
Usable Frequency Range	95 Hz - 3.3 kHz
Sensitivity*	92.9 dB
Magnet Weight	38 oz.
Gap Height	0.31", 7.9 mm
Voice Coil Diameter	2", 51 mm
Thiele & Small Parameters
Resonant Frequency (fs)	62 Hz
DC Resistance (Re)	5.37 Ω
Coil Inductance (Le)	0.67m H
Mechanical Q (Qms)	6.57
Electromagnetic Q (Qes)	0.31
Total Q (Qts)	0.29
Compliance Equivalent Volume (Vas)	21.43 liters / 0.76 cu.ft.
Peak Diaphragm Displacement Volume (Vd)	67.2 cc
Mechanical Compliance of Suspension (Cms)	0.35 mm/N
BL Product (BL)	11.21 T-M
Diaphragm Mass Inc. Airload (MMs)	19 grams
Efficiency Bandwidth Product (EBP)	201
Maximum Linear Excursion (Xmax)	3.2 mm
Surface Area of Cone (Sd)	210 cm2
Maximum Mechanical Limit (Xlim)	6.9 mm
Mounting Information
Recommended Enclosure Volume
Sealed	3.4-9.91 liters / 0.12-0.35 cu.ft.
Vented	7.08-16.99 liters / 0.25-0.6 cu.ft.
Driver Volume Displaced	0.028 cu.ft. / 0.79 liters
Overall Diameter	8.24", 209.3 mm
Baffle Hole Diameter	7.13", 181.1 mm
Front Sealing Gasket	Yes
Rear Sealing Gasket	Yes
Mounting Holes Diameter	0.22", 5.6mm
Mounting Holes B.C.D.	7.75", 196.9mm
Depth	3.5", 88.9 mm
Net Weight	6.8 lbs, 3.08 kg
Shipping Weight	7.5 lbs, 3.4 kgs
Materials of Construction
Coil Construction	Copper voice coil
Coil Former	Kapton former
Magnet Composition	Ferrite magnet
Core Details	Tapered Coax

Basket Materials	Pressed steel basket
Cone Composition	Paper Cone
Cone Edge Composition	Sealed cloth cone edge
Dust Cap Composition	Zurette dust cap