Eminence ALPHA-6CBMRA User Manual

Specification

K2

dBSPL

Ohm

Nominal Basket Diameter
Nominal Impedance*
Power Rating**
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)

6.50”, 165.10mm
8 ohms

100W

406.98Hz

400Hz-5kHz

97.8

16 oz.

0.25”, 6.35mm

1.50”, 38.10mm

406.98Hz

5.26

0.38mH

6.04

1.74

1.35

0.45 liters / 0.02 cu.ft.

19.01cc

0.02mm/N

7.86 T-M

8.00 grams

233.69

1.50mm

126.70 cm2

3.00mm

ALPHA-6CBMRA American Standard Series

Recommended for pro audio, car audio, and bass guitar midrange applications. Sealed basket affords this speaker
enclosure independence.

105

100

50

45

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

Materials of Construction

Copper voice coil
Polyimide former
Ferrite magnet
Non-vented core
Pressed steel basket
Paper Cone
Cloth cone edge
Solid composition paper dust cap

N/A
N/A

6.59”, 167.39mm

5.69”, 144.53mm

Fitted as standard
Fitted as standard

0.23”, 5.84mm

6.06”, 153.92mm

2.20”, 55.88mm

3.70 lbs., 1.68 kg

4.40 lbs., 2 kg

95

90

85

80

75

70

65

60

55

20 Hz50100 200500 1K 2K 5K 10

Please inquire about alternative impedances.

*

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

**

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

***

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 | 2ft. X 2ft. 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)

40

35

30

25

20

15

10

5

0

0K