Eminence ALPHA-6A User Manual

Specication

Nominal Basket Diameter
Nominal Impedance*

Power Rating**
Watts
Music Program
Resonance
Usable Frequency Range***
Sensitivity
Magnet Weight

Gap Height
Voice Coil Diameter

Thiele & Small Parameters

Resonant Frequency (fs)

DC Resistance (Re)

Coil Inductance (Le)
Mechanical Q (Qms)
Electromagnetic Q (Qes)
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)
Efciency Bandwidth Product (EBP)
Maximum Linear Excursion (Xmax)

Surface Area of Cone (Sd)

Maximum Mechanical Limit (Xlim)

6.5”, 165mm
4 or 8 ohms

100W
200W

118Hz

85Hz-6kHz

93.6

20 oz

0.25”, 6.35mm

1.5”, 38.1mm

118Hz

7.2

0.19mH

5.68

0.60

0.54

5.8 ltr/0.2 cu. ft.
44cc

0.26mm/N

8.0 T-M

7 grams

197

3.5mm

126.7cm

4.0mm

The Art and Science of Sound

ALPHA-6A American Standard Series

Recommended for professional audio mid-range applications in a sealed cabinet, or as a mid-bass in a vented
satellite enclosure.

2

Mounting Information

Recommended Enclosure Volume
Sealed
Vented

Overall Diameter
Bafe Hole Diameter

Front Sealing Gasket
Rear Sealing Gasket

Mounting Holes Diameter
Mounting Holes B.C.D.
Depth
Net Weight

Shipping Weight

3.4-15.6 ltr/0.12-0.55 cu. ft.

Materials of Construction

Coil Construction
Coil
Magnet Composition

Core Details
Basket Materials

Cone Composition
Cone Edge Composition

Dust Cap Composition

Solid Composition Paper

2.8-5.7 ltr/0.1-0.2 cu. ft.

6.59”, 167.4mm

5.69”, 144.5mm
Fitted as Standard
Fitted as Standard

0.23”, 5.7mm

6.06”, 154mm

2.8”, 71mm

4.1 lbs, 1.9 kg

4.8 lbs, 2.2 kg

Copper

Polyimide

Ferrite

Vented And Extended

Pressed Steel

Paper

Cloth

Please inquire about alternative impedances.

*

Multiple units exceed published rating evaluated under EIA 426A noise source and test standard while in a free-air, nontemperature-controlled environment.

**

The average output across the usable frequency range when applying 1W/1m into the nominal impedance. Ie: 2.83 V/8 ohms, 4 V/16 ohms.

***

Eminence response curves are measured under the following 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/bafe | 2 ft. X 2 ft. bafe is built into the wall with the speaker mounted ush against a steel ring for minimum diffraction | Haer P1500 Trans-Nova amplier | 2700 cu.ft. chamber with

berglass on all six surfaces (three with custom-made wedges)