Eminence
Eminence Professional SIGMA PRO 18A-2 Speaker - 650 W RMS - 1300 W PMPO
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- SKU:
- 18067612
- MPN:
- sigmapro-18a-2
- Availability:
- Usually ships the same or next business day. In stock at our NJ warehouse.
- Shipping:
- Calculated at Checkout
- Stock Update:
- 12/24/2025 07:50:51 PM PST
- Stock Update:
- 12/24/2025 07:50:51 PM PST
Description
This item is brand-new, factory sealed.
Nominal Basket Diameter 18-in, 457 mm* Nominal Impedance* 8 Ohms
* Power Rating*
* Program Power 1300 W
* Watts 650 W
* Resonance 28 Hz
* Usable Frequency Range 41 Hz - 2.4 kHz
* Sensitivity* 99 dB
* Magnet Weight 120 oz.
* Gap Height 0.37-in, 9.5 mm
* Voice Coil Diameter 3-in, 76 mm
* THIELE & SMALL PARAMETERS
* Resonant Frequency (fs) 28 Hz
* DC Resistance (Re) 6.29 O
* Coil Inductance (Le) 1.9m H
* Mechanical Q (Qms) 8.28
* Electromagnetic Q (Qes) 0.3
* Total Q (Qts) 0.29
* Compliance Equivalent Volume (Vas) 441.2 liters / 15.58 cu.ft.
* Peak Diaphragm Displacement Volume (Vd) 695 cc
* Mechanical Compliance of Suspension (Cms) 0.24 mm/N
* BL Product (BL) 22.1 T-M
* Diaphragm Mass Inc. Airload (MMs) 130 grams
* Efficiency Bandwidth Product (EBP) 93
* Maximum Linear Excursion (Xmax) 6.1 mm
* Surface Area of Cone (Sd) 1140 cm2
* Maximum Mechanical Limit (Xlim) 18 mm
* Recommended Enclosure Volume
* Sealed N/a
* Vented 93-212 liters / 3.3-7.5 cu.ft.
* Driver Volume Displaced 0.234 cu.ft. / 6.62 liters
* Overall Diameter 18-in, 457.2 mm
* Baffle Hole Diameter 16.56-in, 420.6 mm
* Front Sealing Gasket Yes
* Rear Sealing Gasket Yes
* Mounting Holes Diameter 0.28-in, 7.1mm
* Mounting Holes B.C.D. 17.25-in, 438.2mm
* Depth 8.15-in, 207 mm
* Net Weight 24.5 lbs, 11.11 kg
* Shipping Weight 28.1 lbs, 12.75 kgs
* MATERIALS OF CONSTRUCTION
* Coil Construction Copper voice coil
* Coil Former Polyimide former
* Magnet Composition Ferrite magnet
* Core Details Vented and extended core * Basket Materials Die-cast aluminum basket
* Cone Composition Paper cone
* Cone Edge Composition Cloth cone edge
* Dust Cap Composition Solid composition paper dust cap
Features
Country of Origin:
United States
United States
Specs
| Physical Characteristics | |
| Product Material |
|
| Speaker Depth | 8.15" |
| Weight (Approximate) | 24.50 lb |
| Speaker Diameter | 18" |
| Depth | 8.15" |
| Warranty | |
| Limited Warranty | 7 Year |
| General Information | |
| Brand Name | Eminence |
| Manufacturer Website Address | http://www.eminence.com |
| Marketing Information | Each Eminence Professional model can be identified by its cast aluminum Eminence chassis that is lightweight and strong. Aluminum does not conduct the magnetic field out of the gap, thereby making the motor strength higher and the stray magnetic field lower. We coat each chassis and all metal components with an epoxy-acrylic finish using our in-house e-coat process. We can control the thickness of that coating to within 0.001"; critical when working with close tolerance transducer motor designs. We then add front and rear sealing gaskets on each model to accommodate front or rear loading. |
| Product Type | Speaker |
| Product Name | Professional SIGMA PRO 18A-2 Speaker |
| Manufacturer | Eminence Speaker, LLC |
| Manufacturer Part Number | sigmapro-18a-2 |
| Product Model | SIGMA PRO 18A-2 |
| Product Line | Professional |
| Technical Information | |
| PMPO Output Power | 1300 W |
| Minimum Frequency Response | 41 Hz |
| Maximum Frequency Response | 2.40 kHz |
| Woofer Driver Material | Paper |
| Sensitivity | 99 dB |
| Application/Usage | Indoor/Outdoor |
| Woofer Driver Size | 18" |
| Impedance | 8 Ohm |
| RMS Output Power | 650 W |
Warranty Information
All Items are Brand New, Factory Sealed and come with a standard warranty. [Read our policies]
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Eminence Professional SIGMA PRO 18A-2 Speaker - 650 W RMS - 1300 W PMPO
$249.99