Eminence BETA-15A User Manual

Specification

K2

SPL vs Freq

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)

334.60 liters / 11.80 cu.ft.

15”, 381mm

8 ohms

300W
600W

35Hz

45Hz-3.70kHz

98.20

34 oz.

0.31”, 7.92mm

2”, 50.80mm

35Hz

6.32

1.10mH

8.10

0.63

0.58

330.00cc

0.35mm/N

11.50 T-M
60 grams

56.00
4mm

823.70 cm2

11.60mm

BETA-15A American Standard Series

Recommended for professional audio as a woofer in sealed and vented enclosures.

dBSPL

110

105

Ohm

90

80

70

60

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

45.00-62.00 liters/1.60-2.20cu.ft.

99.00-175.60 liters/3.50-6.20 cu.ft.

Materials of Construction

Copper voice coil
Polyimide former
Ferrite magnet
Vented and extended core
Pressed steel basket
Paper Cone
Cloth cone edge
Solid composition paper dust cap

15.15”, 384.80mm

13.87”, 352.30mm

Fitted as standard
Fitted as standard

0.25”, 6.40mm

14.56”, 369.90mm

6.05”, 154mm

8.80 lbs., 4 kg

10.80 lbs., 4.90 kg

*

**

***

100

95

90

85

80

75

70

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)

50

40

30

20

10

9

8

7

0K