Eminence Alpha 12 in. Paper/Cloth 20 oz. 100 watts

Code: Alpha-12A

Price: $149.95

Shipping Weight: 8.00 pounds

Quantity in Basket: None

Product Description:

ALPHA 12

Nominal Basket Diameter
Impedance
Power Rating
Resonance
Usable Frequency Range
Sensitivity
Magnet Weight
Gap Height
Voice Coil Diameter

Mounting Information
Recommended Enclosure Volume
   (vented)
Overall Diameter
Baffle Hole Diameter
Front Sealing Gasket
Rear Sealing Gasket
Mounting Holes Diameter
Mounting Holes B.C.D.
Depth
Shipping Weight

Thiele-Small Parameters
Resonant Frequency (fs)
Impedance (Re)
Coil Inductance (Le)
Electromagnetic Q (Qes)
Mechanical Q (Qms)
Total Q (Qts)
Compliance Equivalent Volume (Vas)

Peak Diaphragm Displacement Volume (Vd)
Mechanical Compliance of Suspension (Cms)
BL Product (BL)
Diaphragm Mass inc. Airload (Mms)
Equiv. Resistance of Mechanical
Suspension Loss (Rms)
Efficiency Bandwidth Product (EBP)
Voice Coil Overhang (Xmax)
Surface Area of Cone (Sd)
Impedance at Resonance (Zmax)
Maximum Mechanical Limit (Xmech)

12", 304.8mm
8 ohms
150Wrms
49Hz
45Hz - 5kHz
click here for guide
20oz.
0.25", 6.35mm
1.5", 38.1mm

71 - 117 liters
2.5 - 4.15 cu. ft.
12.24", 310.9mm
11.04", 280.4mm
fitted as standard
fitted as standard
0.25", 6.4mm
11.63", 295.3mm
4.725", 120mm
7.1lbs., 3.2 kg.

49Hz
6.30 ohms
0.79mH
0.88
6.53
0.77
121.5 liters
4.29 cu. ft.
125cc
0.32mm/N
8.5 T-M
33 grams

1.54N*sec/M
56
2.4mm
519.5cm²53 ohms
13.21mm

Eminence response curves are measured under the following controlled test conditions:

All speakers are tested at 1W/1m using a variety of test set-ups for the appropriate impedance
LMS using 0.25" supplied microphone (software calibrated) mounted 1m from wall/baffle
2ft. X 2 ft. baffle is built into the wall with the speaker mounted flush against a steel ring for minimum diffraction
Hafler P1500 Trans-Nova amplifier
2700 cu. ft. chamber with fiberglass on all six surfaces (three with custom-made wedges)

To download spec sheets: Alpha 12

Application Notes

Ideal for two-way sound reinforcement systems, keyboard, and guitar
combos.
__________________

Materials of Construction

Kapton coil former for
increased rigidity and thermal protection
Polyamide-imide coated two-layer, 32ga., copper voice coil for improved power handling and durability.
Ferrite Magnet
Vented and extended core for increased power handling
Premium pressed steel basket for maximum strength
Paper cone
Cloth cone edge
Solid composition felt dust cap