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Eminence IMPERO 18C 18" High Power Driver Speaker 4 Ohm 1200W

Brand:| Model: IMPERO 18C
Overview
The Eminence Impero 18C 18" pro woofer features a 4 ohm impedance, 1,200 watts RMS power rating, and a powerful magnet structure that helps this serious transducer move vast volumes of air.
Highlights
  • Ultra-high power handling capacity guarantees long-term durability
  • 4" diameter copper voice coil on fiberglass former, 4 ohm impedance
  • Weather-resistant paper cone and dust cap, treated cloth edge
  • Die cast basket is light yet strong, ready to handle rough travel
  • Massive, optimized motor structure helps move serious volumes of air
  • Capable of sustaining thunderous levels of sub-bass
  • Hand built in the USA
Part # 
290-698
Weight: 30.8 lbs.  
IN STOCK
Order Soon - Only 1 Left In StockMore Due In January 9, 2015
Your Price
$299.99
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Product Details

Eminence IMPERO 18C 18" High Power Driver Speaker 4 Ohm 1200W

The Eminence Impero 18C 18" high power pro audio speaker is optimized for use in vented enclosures. Its 1,200 watt continuous power rating is a result of Eminence's extensive experience designing and manufacturing loudspeaker drivers for serious professional use.

This 18" cast frame transducer features a 4" diameter copper voice coil that is wound on a fiberglass former. A large magnet, extended and vented pole piece, bumped back plate, and 1/2" thick x 7-1/2" diameter top plate ensure substantial motor strength, resulting in tremendous bass output.

The Impero 18C's performance is ideal for 4 ohm full-range 3-way boxes, bass guitar boxes, and compact to medium-sized subwoofer speaker systems. Recommended enclosure volume: Vented: 113.2 ~ 277.5 liters / 4 ~ 9.8 cu. ft.



Product Specifications
  • Nominal Diameter18"
  • Power Handling (RMS)1200 Watts
  • Power Handling (max)2400 Watts
  • Impedance4 ohms
  • Frequency Response36 to 820 Hz
  • Sensitivity94.5 dB 1W/1m
  • Voice Coil Diameter4"
  • Magnet Weight109 oz.
Thiele-Small Parameters
  • Resonant Frequency (Fs)31.48 Hz
  • DC Resistance (Re)3.13 ohms
  • Voice Coil Inductance (Le)1.09 mH
  • Mechanical Q (Qms)10.13
  • Electromagnetic Q (Qes)0.35
  • Total Q (Qts)0.34
  • Compliance Equivalent Volume (Vas)11.19 ft.³
  • Mechanical Compliance of Suspension (Cms)0.17 mm/N
  • BL Product (BL)16.1 Tm
  • Diaphragm Mass Inc. Airload (Mms)147.56g
  • Maximum Linear Excursion (Xmax)8.13 mm
  • Surface Area of Cone (Sd)1159 cm²
Materials of Construction
  • Cone MaterialTreated Paper
  • Surround MaterialCloth
  • Voice Coil Wire MaterialCopper
  • Voice Coil FormerFiberglass
  • Basket / Frame MaterialCast Aluminum
  • Magnet MaterialFerrite
Mounting Information
  • Overall Outside Diameter18"
  • Baffle Cutout Diameter16.56"
  • Depth8.31"
  • # Mounting Holes8
Optimum Cabinet Size (determined using BassBox 6 Pro High Fidelity suggestion)
  • Sealed Volume2.32 ft.³
  • Sealed F375 Hz
  • Vented Volume5.06 ft.³
  • Vented F345 Hz
Eminence IMPERO 18C 18" High Power Driver Speaker 4 Ohm 1200W
  • BrandEminence Speaker
  • ModelIMPERO 18C
  • Part Number290-698
  • UPC876358002061
  • Product CategoryWoofers, Subwoofers & Midrange Speakers
  • Unit of MeasureEA
  • Product Rating
    (2 Reviews)
  • Weight30.8 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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Reviews

Eminence IMPERO 18C 18" High Power Driver Speaker 4 Ohm 1200W
Eminence IMPERO 18C 18" High Power Driver Speaker 4 Ohm 1200W is rated 4.5 out of 5 by 2.
Rated 4 out of 5 by from Good Driver, but watch the QCI bought two of these for an install, and they work just as expected. However one of the units had the red and black terminals transposed, which would make it appear to be out of polarity.There are two common ways a driver can be out of polarity, the simple transposing of the terminal markings, or by installing the magnet upside down, which isn't visibly obvious. The voice coils are wound my machine and are almost never backwards.This is not a complaint specific to this driver, or even unique to Eminence. It's always good to test the polarity of any driver or system to confirm it. I've seen mistakes slip through on drivers and systems at all price levels
Date published: 2013-07-02
Rated 5 out of 5 by from ExcellentThis speaker really pounds and can take some serious abuse! I plan to purchase more in the future as replacements for other boxes I have with blown 18's. I'm currently driving it with a Peavey 1500 bridged, with the DDT clip protection on, running at 4 ohms. I can safely clip the heck out of it ALL NITE, and it doesn't care. I needed something bullet proof for my kick drum thump, and this combo does the trick. I plan to get a second Impero 18c and use my Crown iTech 4000 to run one on each channel (though I won't want to drive that amp into clip!)Excellent value, highly recommended!
Date published: 2012-12-31

Product Q&A

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who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Eminence IMPERO 18C 18" High Power Driver Speaker 4 Ohm 1200W

Cabinet

Will this work really good with the subwoofer Knock Down PA cabinet you sell?...item #245-328 I dont understand all of the driver specs to build my own cabinet.
Asked by: J Man
You should search for a "box calculator" - it allows you to plug in the specs. It will then give you the volume, port diameter and length - along with tuning frequencuy and -3d down point (the F3). This is an expensive driver - and as a DIYer, you should do some homework on a project of this cost. While the knock down cabinet 245-328 is decent. I think you will find that it is way too small - and not the right solution. I'd build a custom cabinet to match the driver. You can read a lot of articles on materials, bracing, sealing air spaces etc... it's not too hard - you just need to take it one step at a time. PE even sells the ports you need.. Good luck and have fun.
Answered by: MarkAJH
Date published: 2012-12-10

what is the optimum enclosure size for use with bass guitar ?

Asked by: neoterra
This woofer will work very well in 5.6 cubic feet with a 6" diameter, 10" long port. This will provide a tuning frequency of 32 Hz which will work well for both 4 and 5 string bass guitars.Rough external dimensions for a box this size would be 18"x18"x37", port placement does not matter.
Answered by: MattP
Date published: 2012-08-23

Weather resistant?

The description references a weather resistant cone/dustcap and a treated surround. Are these drivers truly weather resistant and fit for sheltered, outdoor use?
Asked by: Sfritz
Weather resistant is a tricky phrase. There are specific drivers designed for built-in sheltered applications - such as the subs at the volcano at the Mirage in Vegas. This intention of this driver is to be in a sound reinforcement cabinet and will do well with the elements, sheltered. I would not leave it out permanently. While the cone and dust cap are treated, due to the cabinet design, the internal components have no protection to humidity or condensation.
Answered by: MarkAJH
Date published: 2012-05-17

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