CELESTION PRO-AUDIO

KILOMAX PRO-18A 18" Professional Series Speaker

Recommended for professional audio subwoofer and woofer applications in sealed and vented enclosures. Not for horn-loading.

Applications

• Subwoofer | Woofer | Pro Audio

• Box Type: Sealed | Vented

SPECIFICATION

Nominal Basket Diameter

• 18", 457 mm

Nominal Impedance*

• 8 ?

Power Rating*

Program Power

• 2500 W

Watts

• 1250 W

Resonance

• 32 Hz

Usable Frequency Range

• 33 Hz - 0.3 kHz

Sensitivity*

• 95.8 dB

Magnet Weight

• 109 oz.

Gap Height

• 0.375", 9.5 mm

Voice Coil Diameter

• 4", 102 mm

THIELE & SMALL PARAMETERS

Resonant Frequency (fs)

• 32 Hz

DC Resistance (Re)

• 5.07 ?

Coil Inductance (Le)

• 1.59m H

Mechanical Q (Qms)

• 10.15

Electromagnetic Q (Qes)

• 0.49

Total Q (Qts)

• 0.47

Compliance Equivalent Volume (Vas)

• 331.5 liters / 11.71 cu.ft.

Peak Diaphragm Displacement Volume (Vd)

• 1159 cc

Mechanical Compliance of Suspension (Cms)

• 0.18 mm/N

BL Product (BL)

• 17.2 T-M

Diaphragm Mass Inc. Airload (MMs)

• 143 grams

Efficiency Bandwidth Product (EBP)

• 65

Maximum Linear Excursion (Xmax)

• 10 mm

Surface Area of Cone (Sd)

• 1159 cm2

Maximum Mechanical Limit (Xlim)

• 19.2 mm

MOUNTING INFORMATION

Recommended Enclosure Volume

Sealed

• 104.8-172.7 liters / 3.7-6.1 cu.ft.

Vented

• 118.9-303 liters / 4.2-10.7 cu.ft.

Driver Volume Displaced

• 0.234 cu.ft. / 6.62 liters

Overall Diameter

• 18", 457.2 mm

Baffle Hole Diameter

• 16.56", 420.6 mm

Front Sealing Gasket

• Yes

Rear Sealing Gasket

• Yes

Mounting Holes Diameter

• 0.28", 7.1mm

Mounting Holes B.C.D.

• 17.25", 438.2mm

Depth

• 8.15", 207 mm

Net Weight

• 27.4 lbs, 12.43 kg

Shipping Weight

• 30.9 lbs, 14.02 kgs

MATERIALS OF CONSTRUCTION

Coil Construction

• Copper voice coil

Coil Former

• Kapton former

Magnet Composition

• Ferrite magnet

Core Details

• Extended core with Core Periphery Ventilation

Basket Materials

• Die-cast aluminum basket

Cone Composition

• Treated Paper-Kevlar

Cone Edge Composition

• Cloth cone edge

Dust Cap Composition

• Porous cloth top spider/ heatsink