Making speakers sound like new again for over 25 years!

Eminence BETA-12CX: 12 inch Coaxial Speaker

Double click on above image to view full picture

Zoom Out
Zoom In

More Views

Eminence BETA-12CX: 12 inch Coaxial Speaker

Be the first to review this product

Availability: In stock.

Regular Price: $89.99

Special Price: $84.99

Add Items to Cart Add to Cart

Quick Overview

Recommended for professional audio as a mid-bass in either vented, or sealed satellite or floor monitor enclosures.
Also works nicely in vented two-way enclosures used for small coverage areas. APT-50 tweeter sold separately.
250 watts / 66-20kHz / 2" voice coil
8 ohms

Click Here to Download PDF Spec Sheet
Click Here to Download PDF Cabinet Design
Nominal Basket Diameter 12", 304.8mm
Nominal Impedance* 8 ohms
Power Rating
Watts 250W
Music Program 500W
Resonance 47Hz
Usable Frequency Range 66Hz-20kHz*
Sensitivity*** 96.4
Magnet Weight 38 oz.
Gap Height 0.312", 7.92mm
Voice Coil Diameter 2", 50.8mm

Resonant Frequency (fs) 47Hz
DC Resistance (Re) 5.57
Coil Inductance (Le) 1.01mH
Mechanical Q (Qms) 6.69
Electromagnetic Q (Qes) 0.51
Total Q (Qts) 0.48
Compliance Equivalent Volume (Vas) 161 liters / 5.7 cu.ft.
Peak Diaphragm Displacement Volume (Vd) 186cc
Mechanical Compliance of Suspension (Cms) 0.40mm/N
BL Product (BL) 10.0 T-M
Diaphram Mass inc. Airload (Mms) 34 grams
Efficiency Bandwidth Product (EBP) 84
Maximum Linear Excursion (Xmax) 3.5mm
Surface Area of Cone (Sd) 532.4 cm2
Maximum Mechanical Limit (Xlim) 10.4mm

Recommended Enclosure
Sealed 42.5-28 liters/1-1.5 cu.ft.
Vented 37-71 liters/1.3-2.5 cu.ft.
Overall Diameter 12.03", 305.5mm
Baffle Hole Diameter 10.95", 278.1mm
Front Sealing Gasket Fitted as standard
Rear Sealing Gasket Fitted as standard
Mounting Holes Diameter 0.25", 6.4mm
Mounting Holes B.C. D. 11.59", 294.3mm
Depth 4.47", 114mm
Net Weight 7.8 lbs., 3.5 kg
Shipping Weight 10 lbs., 4.5 kg

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

*APT-50 horn driver sold separately.
Add Your Tags:
Use spaces to separate tags. Use single quotes (') for phrases.

Midwest Speaker Repair  |  1901 Oakcrest Ave Suite 1, Roseville, MN 55113   |  (651) 645-7385
© 2009 Midwest Speaker   |   Privacy Policy

Mobile Site | Back To Top