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High Output Active-Driven Subwoofer

The ES2.5 (4 ohms) is a double 15", high-output subwoofer designed for the ES Series speaker system. Using new concepts in twin asymmetrical acoustic chambers, they deliver very high speaker loading and intense output from a relatively small cabinet footprint. Reproducing low frequencies with very high transient content, they are ideal for use in live applications or as part of a five-way ES system utilizing VHD1.21 and 2.21 subwoofers. Together with the ES1.0 and EPAK2500/R, the ES2.5/2.6 delivers the highest dynamic range of any other comparable system providing new levels of clarity, depth, and resolution.


  • Professional Baltic birch construction with a highly resistant polymer coating

  • 131dB sustained output, 134dB peak per unit, and 136dB/ 139dB peak when using 2 units

  • Horn reflex-loaded, 18" low-frequency driver with 4" (100 mm) inside/outside, epoxy baked, high-temperature voice coil assembly and carbon fiber reinforced cone assembly

  • Four proprietary side handles for simplified handling and carrying

  • Heavy-duty front grille to work with the innovative ES series magnetic carts

  • High-impact, low-friction feet are asymmetrically located on two sides allowing vertical or horizontal system setup, lock-in, and easy cabinet movement

  • Six industrial-grade internal corner braces with twelve M10 suspension points

  • M20 top hat for pole insertion

  • Weatherproofing option and special paint finish available on request.


Specifically designed to accompany the ES1.0 as a true full range high output system for live performance and music

  • Theatres

  • Houses of worship

  • Portable PA

  • Scalable into larger systems

  • Can be integrated with other ES subwoofers

System Acoustic Performance

Max SPL Long-term: 134dB

Max SPL Peak: 137dB

-3dB Response: 38Hz to 130Hz

-10dB Response: 34Hz to 130Hz

Impedance: 4Ω

Crossover Point: 70Hz to 130Hz

Low-Frequency Section

Acoustic Design: Twin Asymmetrical loading

Low Frequency Amplifier Requirement: 1600W / ES2.5 from EPAK 2500/R

Number of Drivers: 2

Woofer Size / Voice Coil Diameter / Design: 15" / 4" Inside Outside

Diaphragm Material: Epoxy Reinforced Cellulose

Magnet Type: Ferrite

Speaker Input

Speaker Input: AP4

Speaker Output

Speaker Output: AP4


Cabinet Material: Baltic birch

Handles: 4

Pole Mount: M20

Color: "Orange peeled" Matt Black or any RAL

Physical Dimensions

Height: 600 mm (23.62")

Width: 700 mm (27.55")

Depth: 750 mm (29.52")

Weight: 74,7 kg (163.1lbs)

Product code

  • KVV 987 005 - ES2.5

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