Eminence DELTA-15LFA User Manual

Specification

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)

241.00 liters / 8.51 cu.ft.

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

36.80-42.50 liters/1.30-1.50cu.ft.

85.00-167.00 liters/3.00-5.90 cu.ft.

15”, 381mm

8 ohms

500W

1000W

39Hz

42Hz-3.20kHz

96.00

56 oz.

0.37”, 9.53mm

2.50”, 63.50mm

39Hz

6.11

1.37mH

6.30

0.52

0.48

419.00cc

0.23mm/N

14.60 T-M

75 grams

75.00

4.80mm

873 cm2

16.50mm

15.15”, 384.80mm

13.87”, 352.30mm

Fitted as standard
Fitted as standard

0.25”, 6.40mm

14.56”, 369.90mm

6.30”, 160mm

12.80 lbs., 5.80 kg

14.80 lbs., 6.70 kg

DELTA-15LFA American Standard Series

Recommended for professional audio as a mid-bass or oor monitor in a sealed enclosure. Also suitable as a woofer in

vented, bass guitar or PA enclosures.

100

dBSPL

95

90

85

80

75

70

Ohm

100

90

80

70

60

50

40

30

20

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

65

60

20 Hz50100 200500 1K 2K 5K 10K20K

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)

10

9

8

7