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Eminence ALPHA-12A: 12 inch Woofer

Price: $79.99 $69.99

Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure.
150 watts / 51-4.3kHz / 1.5″ voice coil
8 ohms

SKU: ALPHA-12A Categories: , ,

Description

ALPHA-12A

Recommended for professional audio mid-bass applications in a small sealed or medium vented enclosure.

Click Here to Download 8 ohm PDF Spec Sheet

Click Here to Download 8 ohm PDF Cabinet Design

Specs:

Nominal Basket Diameter 12″, 304.8mm

Nominal Impedance* 8 ohms

Power Rating Watts 150W

Music Program 300W

Resonance 49Hz

Usable Frequency Range 51Hz-4.3kHz

Sensitivity*** 95.6

Magnet Weight 20 oz.

Gap Height 0.25″, 6.35mm

Voice Coil Diameter 1.5″, 38.1mm

Thiele & Small Parameters:

Resonant Frequency (fs) 49Hz

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