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ALPHA-12A MESSAGE with any questions!!! We have distributed Eminence for 18 years. We have all the other major PRO Audio Speaker Brands and Models. We sell to Dealers as well. We have MANY of these - just get in touch - we are 20 years EMINENCE DISTRIBUTOR!!! We also sell to Dealers!!! QUANTITY PRICING!!! ALLLLLL OTHER MODELS AVAILABLE!!!
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SPECIFICATION |
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Nominal Basket Diameter |
12", 304.8mm |
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Nominal Impedance* |
8 ohms |
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Power Rating |
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Watts |
150W |
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Music Program |
300W |
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Resonance |
49Hz |
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Usable Frequency Range |
51Hz-4.3kHz |
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Sensitivity*** |
95.6 |
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Magnet Weight |
20 oz. |
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Gap Height |
0.25", 6.35mm |
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Voice Coil Diameter |
1.5", 38.1mm |
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THIELE & SMALL PARAMETERS |
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Resonant Frequency (fs) |
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DC Resistance (Re)
6.3
Coil Inductance (Le)
0.79mH
Mechanical Q (Qms)
6.53
Electromagnetic Q (Qes)
0.88
Total Q (Qts)
0.77
Compliance Equivalent Volume (Vas)
121.5 liters / 4.3 cu.ft.
Peak Diaphragm Displacement Volume (Vd)
125cc
Mechanical Compliance of Suspension (Cms)
0.32mm/N
BL Product (BL)
8.5 T-M
Diaphram Mass inc. Airload (Mms)
33 grams
Efficiency Bandwidth Product (EBP)
56
Maximum Linear Excursion (Xmax)
2.4mm
Surface Area of Cone (Sd)
519.5 cm2
Maximum Mechanical Limit (Xlim)
6.6mm
MOUNTING INFORMATION
Recommended Enclosure
Sealed
17-22.7 liters/0.6-0.8 cu.ft.
Vented
56.6-113.3 liters/2-4 cu.ft.
Overall Diameter
12.26", 311.4mm
Baffle Hole Diameter
11", 279.5mm
Front Sealing Gasket
Fitted as standard
Rear Sealing Gasket
Fitted as standard
Mounting Holes Diameter
0.25", 6.4mm
Mounting Holes B.C. D.
11.71", 297.5mm
Depth
4.73", 120mm
Net Weight
5.3 lbs., 2.4 kg
Shipping Weight
7.4 lbs., 3.4 kg
MATERIALS OF CONSTRUCTION
Coil Construction
Copper voice coil
Coil Former
Polyimide former
Magnet Composition
Ferrite magnet
Core Details
Vented and extended core
Basket Materials
Pressed steel basket
Cone Composition
Paper Cone
Cone Edge Composition
Cloth cone edge
Dustcap Composition
Solid composition felt dust cap