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Eminence Beta-12CX American Standard Series 12" Replacement Speaker

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Item#: BETA12CX
UPC: 0876358000135
Ships in 1-3 days
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I DJ NOW Webstore – Orders to be Shipped only: 1 800 355 7746 I DJ NOW - Babylon, NY store (Pick Up In Store Only)
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About This Product

The American Standard Series Eminence Beta-12CX is recommended for professional audio as a midbass in either vented, or sealed satellite or floor monitor enclosures. Also works nicely in vented two-way enclosures used for small coverage areas. Great for newer generation FRFR (full range, flat response) systems. The data for this coaxial woofer was calculated with the ASD:1001 driver screwed into the woofer, but not active.

Eminence Beta-12CX American Standard Series 12" Replacement Speaker Features:

  • 500 w Program Power.
  • 12" Nominal Diameter.
  • 8 Ω.
  • Midrange
  • Midbass
  • Woofer
Suggested Enclosure:
  • Sealed Box
  • Vented Box
Each Eminence American Standard model can be identified by its economical Stamped Steel chassis. Although more affordable than cast aluminum, these frames provide an excellent and versatile chassis. Eminence coats each basket and all metal components with an epoxy-acrylic finish using their in-house e-coat process. They can control the thickness of that coating to within 0.001"; critical when working with close tolerance transducer motor designs. Eminence then adds front and rear sealing gaskets on each model to accommodate front or rear loading.

There are 24 unique models available in the American Standard series. Each was designed for versatility in a range of applications. From 6.5-15" models with applications ranging from standard sub-woofers, two-way enclosures, and coaxials, to truncated line array models, monitor woofers, and high performance midranges setting records for output in car audio, no other loudspeaker line provides more choices, power handling, performance, and reliability for the price. As with the Professional series, each product comes with a Seven Year Warranty against manufacturer’s defects.

Eminence Beta-12CX Specifications
Nominal Basket Diameter12", 305 mm
Nominal Impedance8 Ω
Power Rating
Watts250 W
Music Program500 W
Resonance47 Hz
Usable Frequency Range57 Hz - 4.6 kHz
Sensitivity97.3 dB
Magnet Weight38 oz.
Gap Height0.312", 7.9 mm
Voice Coil Diameter2", 51 mm
Thiele & Small Parameters
Resonant Frequency (fs)47 Hz
DC Resistance (Re)5.42 Ω
Coil Inductance (Le)0.64m H
Mechanical Q (Qms)5.64
Electromagnetic Q (Qes)0.52
Total Q (Qts)0.48
Compliance Equivalent Volume (Vas)120.94 liters / 4.27 cu.ft.
Peak Diaphragm Displacement Volume (Vd)188.6 cc
Mechanical Compliance of Suspension (Cms)0.3 mm/N
BL Product (BL)10.79 T-M
Diaphragm Mass Inc. Airload (MMs)38 grams
Efficiency Bandwidth Product (EBP)90
Maximum Linear Excursion (Xmax)3.5 mm
Surface Area of Cone (Sd)538.9 cm2
Maximum Mechanical Limit (Xlim)10.4 mm
Mounting Information
Recommended Enclosure Volume
Sealed26.9-70.79 liters / 0.95-2.5 cu.ft.
Vented32.85-158.58 liters / 1.16-5.6 cu.ft.
Driver Volume Displaced0.071 cu.ft. / 2 liters
Overall Diameter12.03", 305.6 mm
Baffle Hole Diameter11.07", 281.2 mm
Front Sealing GasketYes
Rear Sealing GasketYes
Mounting Holes Diameter0.25", 6.4mm
Mounting Holes B.C.D.11.59", 294.4mm
Depth4.47", 113.5 mm
Net Weight7.8 lbs, 3.54 kg
Shipping Weight10 lbs, 4.54 kgs
Materials of Construction
Coil ConstructionCopper voice coil
Coil FormerKapton former
Magnet CompositionFerrite magnet
Core DetailsTapered Coax
Basket MaterialsPressed steel basket
Cone CompositionPaper cone
Cone Edge CompositionCloth cone edge
Dust Cap CompositionScreened cloth dust cap
Each Beta-12CX Retail Box Includes:
(1) Eminence Beta-12CX American Standard Series 12" Replacement Speaker

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