DELTALITE II 2515 | 15" Neodymium Series Speaker - Series II

Nominal Basket Diameter

15", 381 mm

Nominal Impedance*

8 Ω

Power Rating*

600 W

300 W

Resonance

42 Hz

Usable Frequency Range

54 Hz - 3.7 kHz

Sensitivity*

99.2 dB

Magnet Weight

7 oz.

Gap Height

0.275", 7 mm

Voice Coil Diameter

2.5", 64 mm

Resonant Frequency (fs)

42 Hz

DC Resistance (Re)

5.29 Ω

Coil Inductance (Le)

1.15m H

Mechanical Q (Qms)

4.56

Electromagnetic Q (Qes)

0.41

Total Q (Qts)

0.38

Compliance Equivalent Volume (Vas)

204 liters / 7.2 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

411 cc

Mechanical Compliance of Suspension (Cms)

0.2 mm/N

BL Product (BL)

15.7 T-M

Diaphragm Mass Inc. Airload (MMs)

72 grams

Efficiency Bandwidth Product (EBP)

103

Maximum Linear Excursion (Xmax)

4.8 mm

Surface Area of Cone (Sd)

856.3 cm2

Maximum Mechanical Limit (Xlim)

9 mm

Recommended Enclosure Volume

42.5-48 liters / 1.5-1.7 cu.ft.

51-119 liters / 1.8-4.2 cu.ft.

Driver Volume Displaced

0.084 cu.ft. / 2.38 liters

Overall Diameter

15.32", 389.1 mm

Baffle Hole Diameter

14", 355.6 mm

Front Sealing Gasket

Yes

Rear Sealing Gasket

Yes

Mounting Holes Diameter

0.28", 7.1mm

Mounting Holes B.C.D.

14.56", 369.8mm

Depth

6.81", 173 mm

Net Weight

5.7 lbs, 2.59 kg

Shipping Weight

7.9 lbs, 3.58 kgs

Coil Construction

Aluminum voice coil

Coil Former

Polyimide former

Magnet Composition

Neodymium magnet

Core Details

Vented core

Basket Materials

Die-cast aluminum basket/ heatsink

Cone Composition

Paper cone

Cone Edge Composition

Cloth cone edge

Dust Cap Composition

Solid composition paper dust cap