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DELTA 15LF-4 15" American Standard Series Speaker

$159.99

$189.9916% off

American Standard

Low frequency woofer for pro audio as a mid-bass or floor monitor in a sealed enclosure. Also suitable as a woofer in vented, bass guitar or PA enclosures.

SPECIFICATION

Nominal Basket Diameter

15", 381 mm

Nominal Impedance*

4 Ω

Power Rating*

Program Power

1200 W

Watts

600 W

Resonance

40 Hz

Usable Frequency Range

40 Hz - 2.2 kHz

Sensitivity*

95 dB

Magnet Weight

56 oz.

Gap Height

0.375", 9.5 mm

Voice Coil Diameter

2.5", 64 mm

THIELE & SMALL PARAMETERS

Resonant Frequency (fs)

40 Hz

DC Resistance (Re)

3.37 Ω

Coil Inductance (Le)

0.76m H

Mechanical Q (Qms)

6.22

Electromagnetic Q (Qes)

0.53

Total Q (Qts)

0.49

Compliance Equivalent Volume (Vas)

253.93 liters / 8.97 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

521.2 cc

Mechanical Compliance of Suspension (Cms)

0.24 mm/N

BL Product (BL)

10.32 T-M

Diaphragm Mass Inc. Airload (MMs)

66 grams

Efficiency Bandwidth Product (EBP)

76

Maximum Linear Excursion (Xmax)

5.97 mm

Surface Area of Cone (Sd)

873 cm2

Maximum Mechanical Limit (Xlim)

16.5 mm

MOUNTING INFORMATION

Recommended Enclosure Volume

Sealed

52.95-97.69 liters / 1.87-3.45 cu.ft.

Vented

75.04-154.33 liters / 2.65-5.45 cu.ft.

Driver Volume Displaced

0.128 cu.ft. / 3.62 liters

Overall Diameter

15.15", 384.8 mm

Baffle Hole Diameter

13.87", 352.3 mm

Front Sealing Gasket

Yes

Rear Sealing Gasket

Yes

Mounting Holes Diameter

0.25", 6.4mm

Mounting Holes B.C.D.

14.56", 369.8mm

Depth

6.3", 160 mm

Net Weight

12.8 lbs, 5.81 kg

Shipping Weight

14.8 lbs, 6.71 kgs

MATERIALS OF CONSTRUCTION

Coil Construction

Copper voice coil

Coil Former

Polyimide former

Magnet Composition

Ferrite magnet

Core Details

Vented and extended core

 

 

Basket Materials

Pressed steel basket

Cone Composition

Paper cone

Cone Edge Composition

Cloth cone edge

Dust Cap Composition

Solid composition paper dust cap

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