Eminence Impero 18A or C 18" PRO Woofer

Regular price $264.99 Sale

Eminence Impero 18A

CALL 801-771-1820 with any questions!!!
We have many more of these in stock - 

We have distributed Eminence for 18 years.
We have all the other major PRO Audio Speaker Brands and Models.
We sell to Dealers as well.

SPECIFICATIONS

 

 

Nominal Basket Diameter

 

 

18", 457.2mm

 

 

Nominal Impedance*

 

 

8 ohms

 

 

Power Rating**

 

 

Watts

 

 

1200W

 

 

Music Program

 

 

2400W

 

 

Resonance

 

 

33.17Hz

 

 

Usable Frequency Range

 

 

39Hz - 0.82kHz

 

 

Sensitivity***

 

 

95.9dB

 

 

Magnet Weight

 

 

109 oz.

 

 

Gap Height

 

 

0.5", 12.7mm

 

 

Voice Coil Diameter

 

 

4", 101.6mm

 

 

THIELE & SMALL PARAMETERS

 

 

Resonant Frequency (fs)

 

 

33.17Hz

 

 

DC Resistance (Re)

 

 

5.41

 

 

Coil Inductance (Le)

 

 

1.47mH

 

 

Mechanical Q (Qms)

 

 

14.02

 

 

Electromagnetic Q (Qes)

 

 

0.44

 

 

Total Q (Qts)

 

 

0.43

 

 

Compliance Equivalent Volume (Vas)

 

 

317.02 liters / 11.19 cu.ft.

 

 

Peak Diaphragm Displacement Volume (Vd)

 

 

927.2cc

 

 

Mechanical Compliance of Suspension (Cms)

 

 

0.17mm/N

 

 

BL Product (BL)

 

 

18.9 T-M

 

 

Diaphragm Mass Inc. Airload (MMs)

 

 

139.52 grams

 

 

Efficiency Bandwidth Product (EBP)

 

 

75.37

 

 

Maximum Linear Excursion (Xmax)

 

 

8mm

 

 

Surface Area of Cone (Sd)

 

 

1159 cm2

 

 

Maximum Mechanical Limit (Xlim)

 

 

20.1mm

 

 

MOUNTING INFORMATION

 

 

Recommended Enclosure Volume

 

 

Sealed

 

 

N/a

 

 

Vented

 

 

113.2-277.5 liters / 4-9.8 cu.ft.

 

 

Driver Volume Displaced

 

 

409.6 cu.in. / 6.7 liters

 

 

Overall Diameter

 

 

18", 457.2mm

 

 

Baffle Hole Diameter

 

 

16.56", 420.62mm

 

 

Front Sealing Gasket

 

 

Fitted as standard

 

 

Rear Sealing Gasket

 

 

Fitted as standard

 

 

Mounting Holes Diameter

 

 

0.29", 7.36mm

 

 

Mounting Holes B.C.D.

 

 

17.25", 438.15mm

 

 

Depth

 

 

8.31", 211.07mm

 

 

Net Weight

 

 

27.3 lbs, 12.3 kg

 

 

Shipping Weight

 

 

30.8 lbs, 13.9 kgs

 

 

MATERIALS OF CONSTRUCTION

 

 

Coil Construction

 

 

Copper voice coil

 

 

Coil Former

 

 

Fiberglass

 

 

Magnet Composition

 

 

Ferrite magnet

 

 

Core Details

 

 

Bumped Vented Extended core

 

 

 

 

 

 

 

 

Basket Materials

 

 

Die-cast aluminum basket

 

 

Cone Composition

 

 

Water Resistant Treated Paper Cone

 

 

Cone Edge Composition

 

 

Treated Cloth cone edge

 

 

Dust Cap Composition

 

 

Water Resistant Treated Paper dust cap