Eminence IMPERO 18A: 18 inch High Power Pro Woofer

Original price was: $354.99.Current price is: $344.99.

High power driver recommended for pro audio in vented enclosures. Suited for full-range three-way boxes, bass guitar boxes, and small subwoofers.
1200 watts / 39-800Hz / 4″ voice coil
Die-cast aluminum basket
8 ohms

 

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Description
Specifications
Description

Eminence IMPERO 18A: 18 inch High Power Pro Woofer

High power driver recommended for pro audio in vented enclosures. Suited for full-range three-way boxes, bass guitar boxes, and small subwoofers.

Click Here to Download 8 ohm PDF Spec Sheet

Click Here to Download 8 ohm PDF Cabinet Design

Specification
Nominal Basket Diameter18″, 457 mm
Nominal Impedance*8 Ω
Power Rating*
Program Power2400 W
Watts1200 W
Resonance33 Hz
Usable Frequency Range39 Hz – 0.8 kHz
Sensitivity*95.9 dB
Magnet Weight109 oz.
Gap Height0.5″, 12.7 mm
Voice Coil Diameter4″, 102 mm
Thiele & Small Parameters
Resonant Frequency (fs)33 Hz
DC Resistance (Re)5.41 Ω
Coil Inductance (Le)1.47m H
Mechanical Q (Qms)14.02
Electromagnetic Q (Qes)0.44
Total Q (Qts)0.43
Compliance Equivalent Volume (Vas)317.02 liters / 11.2 cu.ft.
Peak Diaphragm Displacement Volume (Vd)927.2 cc
Mechanical Compliance of Suspension (Cms)0.17 mm/N
BL Product (BL)18.9 T-M
Diaphragm Mass Inc. Airload (MMs)140 grams
Efficiency Bandwidth Product (EBP)75
Maximum Linear Excursion (Xmax)8 mm
Surface Area of Cone (Sd)1159 cm2
Maximum Mechanical Limit (Xlim)20.2 mm
Mounting Information
Recommended Enclosure Volume
SealedN/a
Vented113.27-277.51 liters / 4-9.8 cu.ft.
Driver Volume Displaced0.237 cu.ft. / 6.7 liters
Overall Diameter18″, 457.2 mm
Baffle Hole Diameter16.56″, 420.6 mm
Front Sealing GasketYes
Rear Sealing GasketYes
Mounting Holes Diameter0.28″, 7.1mm
Mounting Holes B.C.D.17.25″, 438.2mm
Depth8.31″, 211.1 mm
Net Weight27.3 lbs, 12.38 kg
Shipping Weight30.8 lbs, 13.97 kgs
Materials of Construction
Coil ConstructionCopper voice coil
Coil FormerFiberglass former
Magnet CompositionFerrite magnet
Core DetailsBumped Vented Extended core
Basket MaterialsDie-cast aluminum basket
Cone CompositionWater resistant paper cone
Cone Edge CompositionTreated cloth cone edge
Dust Cap CompositionWater resistant treated paper dust cap

 

Specifications
Weight32 lbs
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