Eminence Impero 18 Replacement PA Speaker (2,400 Watts)

Eminence Impero 18 Replacement PA Speaker (2,400 Watts), 18 inch, 18A, 8 Ohms, Side

Move some serious air with the Eminence Impero 18A high-power speaker driver. It's perfect for bass amps, full-range three-way boxes, and subwoofers.

Overview

Eminence is proud to introduce three advanced high-power additions to the Professional Series: the Impero 12A, 15A, and 18A. Italian for "empire", Impero sets the tone for this elite offering of high quality, hand-built loudspeakers.

Using high motor strength with balanced Vas and Mms, the Impero series plays extremely loud and low in compact vented designs. Advancements include a 1/2 inch thick by 7.5 inch diameter machined top plate, one piece machined T-yoke, and a 4 inch deep wound fiberglass voice coil. These features combined with an ultra-linear long-excursion suspension and bumped motor assembly allow the Impero series to move serious air, generate serious SPL, while handling tremendous amounts of power.

The 18 inch Impero 18A is also rated at 1,200 watt continuous / 2,400 watt program power, has a frequency range of 39 Hz to 820 Hz, and is suited for full-range three-way boxes, bass guitar boxes, and small subwoofers. This model is also available in a 4 ohm version, the Impero 18C.

Take an in-depth tour of the Eminence speaker factory:

WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov.

Specs

Nominal Basket Diameter: 18 in., 457.2mm

Nominal Impedance: 8 or 4 ohms

Power Rating:
- Continuous: 1200 watts
- Program: 2400 watts

- Resonance: 33.17Hz
- Usable Frequency Range: 39Hz - 0.82kHz
- Sensitivity: 95.9dB
- Magnet Weight: 109 oz.
- Gap Height: 0.5 in., 12.7mm
- Voice Coil Diameter: 4 in., 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: 113.2-277.5 liters / 4-9.8 cu.ft.
- Driver Volume Displaced: 409.6 cu.in. / 6.7 liters
- Overall Diameter: 18 in., 457.2mm
- Baffle Hole Diameter: 16.56 in., 420.62mm
- Front Sealing Gasket: Fitted as standard
- Rear Sealing Gasket: Fitted as standard
- Mounting Holes Diameter: 0.29 in., 7.36mm
- Mounting Holes B.C.D. : 17.25 in., 438.15mm
- Depth: 8.31 in., 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

Dimensions and Weight in Packaging
18 inch, 18A, 8 Ohms: Shipping Weight: 29.5 lbs; Shipping Dimensions: 20 x 19 x 9 in; Manufacturer Part Number (MPN): IMPERO 18A