This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST


2-way 4

Available Finishes:

Because Upstream is more fun than Mainstream

EX Series II

Competition quality and excitement, at prices barely more than the boring stuff.

The EX2540 is an outstanding component system value. To match this performance you'd have to spend a lot more moolah.

The EX2540 features:

  • Liquid Crystal Polymer driver cones for better performance and reliability
  • Rubber surrounds for long term high performance
  • 3/4" (19mm) dome tweeter
  • Silk/polymer composite dome tweeter for smooth, detailed highs
  • Neodymium tweeter magnet for higher efficiency and smaller size
  • Fluid cooling for higher power handling
  • Straight and 15-degree angled surface mount cups and flush mount cups are included
  • Low profile designs ensure a perfect fit in a wide variety of locations
  • Corrosion-proof gold plated crossover terminals
  • Second order Butterworth crossover filters

EXII speakers use materials that are usually found only in speakers costing much more. The butyl rubber surrounds help give them smooth midrange and extended bass response, and won't tear or crack like foam rubber surrounds found in other brands. The polymer composite cones in the midranges and woofers are moisture resistant and light -- yet extremely rigid for lightning quick response with extremely low distortion.

Speakers have to fit into your car, huh? Extensive database research helped us develop a multi-hole drop-in system to fit virtually every application. From a Miata to a Firebird to a Jeep Wrangler, there's an EX Series II speaker that drops right into your car. No cutting. No knuckle banging. No hassle. We are ALL ABOUT database research here at Polk Audio.

The Polk EX Series. They're everything you need in a car speaker. Incredible Sound/Affordable Price. Designed to fit. Built to last.

Driver Complement

Diameter3/4" (1.91cm) 
TypeSilk/Polymer Composite Dome 
Mid / Woofer
Diameter4" (10.16cm) 
TypeLiquid Crystal Polymer 


Total Frequency Response80-22khz 
Nominal Impedance4 ohms
Efficiency91 dB
Power Handling
Peak120 watts


Cut-Out Diameter4" (10.16cm) 
Height3/4" (1.91cm) 
Diameter5 7/16" (13.81cm) 
Driver Mounting Depth
Top Mount1 13/16" (4.60cm) 
Bottom Mount2" (5.08cm) 


Total Shipping Weight7.30 pounds


Speaker WarrantyLimited 1 Yr Parts and Labor 

Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

EX2540 Media

EX2540 Literature

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EX2540 Accessories