The Electro-Voice ETX-18SP packs concert-quality sound into a tidy, easy-to-use powered subwoofer. Its efficient Class D amplifier pumps 1,800 watts through a high-sensitivity transducers providing you with thumping bass and earth-shaking output.


The ETX-18SP features two XLR/TRS combo inputs that accommodate the connection of just about any piece of gear. Flexible gain controls, adjustable delay, peak and temperature limiters, automatic output reduction, and a plethora of other useful features make calibrating your system a piece of cake. And the ETX-18SP is linkable to a speaker or another sub via a Mixed Output jack. It’s easy to achieve a great-sounding performance with the Electro-Voice ETX-18SP. Its high-efficiency Class D power amplifier yields a maximum SPL of 135dB — more than enough to shake the venue.


  • 1,800W Class D amplifier and 18″ woofer
  • 135dB maximum SPL for earth-shaking output
  • Cardioid Control Technology provides a significant reduction in stage noise
  • FIR-Drive uses DSP to optimize transducer linearity
  • XLR/TRS combo inputs accommodate just about anything
  • QuickSmartDSP provides effective system optimization with presets for your application and location
  • Blower-controlled thermal management allows you to work in hot environments
  • Combo pole cup (insert and threaded) for easy speaker installation