ES1.5 - Compact Active-Driven Subwoofer

ES1.5 – Compact Active-Driven Subwoofer

The ES1.5 is a single 15″, extremely compact, high output subwoofer weighing just 30.8 kg (67.9lbs) designed as part of the ES Series speaker system. Used singularly or in multiples of up to three, alongside a single ES1.0 mid high cabinet, the system is powered by the EPAK2500/R Amplifier ensuring fast, easy set up with perfect balance and complete control. The EPAK2500/R also allows up to two ES1.5’s to be used alongside an ES1.8, where the ES1.5 can either be flown alongside an ES1.0 or ground stacked with the ES1.8.

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  • Professional Baltic birch construction with highly resistant polymer coating
  • 127dB sustained output / 130dB peak per unit and 134dB / 137dB peak when using 3 units
  • Acoustic loading via Asymmetrical Bandpass
  • 15″ bass driver with 3″ (76 mm) inside/outside, epoxy baked, high temperature voice coil assembly and ferrite magnetic structure
  • Proprietary side handle design for simplified handling and carrying
  • High-impact low friction feet, asymmetrically located on three sides allowing vertical or horizontal system set up, lock-in and easy cabinet movement
  • Four internal corner braces tied to eight M10 suspension points.
    A total of 24 suspension points are available for custom installation applications
  • Weather proofing option and special paint finishes available on request

System Acoustic Performance

Max SPL Long-term 127dB (134dB – 3x ES1.5)
Max SPL Peak 130dB (137dB – 3x ES1.5)
-3dB Response 40Hz to 130Hz
-10dB Response 36Hz to 130Hz
Impedance 16Ω
Crossover Point 130Hz

Low Frequency Section

Acoustic Design Twin Asymmetrical loading
Low Frequency Amplifier Requirement 500W / ES1.5 from EPAK 2500/R
Woofer Size / Voice Coil Diameter / Design 15″ / 3″ / 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 2
Color “Orange peeled” Matt Black or any RAL

Physical Dimensions

Height 700 mm (27.55″)
Width 450 mm (17.71″)
Depth 450 mm (17.71″)
Weight 30.8 kg (67.9lbs)
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