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Eminence Alpha-12A American Standard Series 12" Replacement Speaker

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Item#: ALPHA12A
UPC: 0876358000043
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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I DJ NOW - Queens, NY Store (Pick Up In Store Only)
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718 762 0100

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Free Shipping on most orders with minimum purchase of $50 or more for a limited time. Ground shipments only in the lower 48 contiguous United States. Excludes oversized or overweight items such as oversized speakers, oversized cases, trussing & staging. Other exclusions include some fluids, some parts & special orders. Any questions, please call 1-800-355-7746 during normal business hours. Offer subject to change or termination without notice. Not responsible for typographical errors.

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About This Product

The American Standard Series Eminence Alpha-12A is recommended for professional audio midbass applications in a small sealed or medium vented enclosure.

Eminence Alpha-12A 12" American Standard Series Speaker Features:

  • 300 w Program Power.
  • 12" Nominal Diameter.
  • 8 Ω.
Application:
  • 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 Alpha-12A Specifications
Specifications
Nominal Basket Diameter12", 305 mm
Nominal Impedance8 Ω
Power Rating
Watts150 W
Music Program300 W
Resonance49 Hz
Usable Frequency Range51 Hz - 4.3 kHz
Sensitivity95.6 dB
Magnet Weight20 oz.
Gap Height0.25", 6.4 mm
Voice Coil Diameter1.5", 38 mm
Thiele & Small Parameters
Resonant Frequency (fs)49 Hz
DC Resistance (Re)6.3 Ω
Coil Inductance (Le)0.79m H
Mechanical Q (Qms)6.53
Electromagnetic Q (Qes)0.88
Total Q (Qts)0.77
Compliance Equivalent Volume (Vas)121.5 liters / 4.29 cu.ft.
Peak Diaphragm Displacement Volume (Vd)125 cc
Mechanical Compliance of Suspension (Cms)0.32 mm/N
BL Product (BL)8.5 T-M
Diaphragm Mass Inc. Airload (MMs)33 grams
Efficiency Bandwidth Product (EBP)56
Maximum Linear Excursion (Xmax)2.4 mm
Surface Area of Cone (Sd)519.5 cm2
Maximum Mechanical Limit (Xlim)6.6 mm
Mounting Information
Recommended Enclosure Volume
Sealed17-22.7 liters / 0.6-0.8 cu.ft.
Vented56.6-113.3 liters / 2-4 cu.ft.
Driver Volume Displaced0.063 cu.ft. / 1.78 liters
Overall Diameter12.26", 311.4 mm
Baffle Hole Diameter11.06", 280.9 mm
Front Sealing GasketYes
Rear Sealing GasketYes
Mounting Holes Diameter0.25", 6.4mm
Mounting Holes B.C.D.11.71", 297.4mm
Depth4.73", 120.1 mm
Net Weight5.3 lbs, 2.4 kg
Shipping Weight7.4 lbs, 3.36 kgs
Materials of Construction
Coil ConstructionCopper voice coil
Coil FormerPolyimide former
Magnet CompositionFerrite magnet
Core DetailsVented and extended core
Basket MaterialsPressed steel basket
Cone CompositionPaper cone
Cone Edge CompositionCloth cone edge
Dust Cap CompositionSolid composition felt dust cap
Each Alpha-12A Retail Box Includes:
(1) Eminence Alpha-12A American Standard Series 12" Replacement Speaker

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