The ETX-15SP 15", 1800W Powered Subwoofer from Electro-Voice is a portable powered Class-D subwoofer capable of up to 1800 watts of output power for a peak SPL rating of 134dB. It has an adjustable low-pass filter, allowing you to select from 80, 100, 120, or 150Hz. The subwoofer has integrated FIR-Drive DSP, including a preset for true cardioid output across its bandwidth. Its combo pole cup supports both insert and threaded inputs allowing it to be used with a variety of other loudspeakers. 4 removable casters are included for easy transport. High-Sensitivity, Low-Distortion Transducer Design

• All ETX woofers use Faraday rings for better vocal reproduction
• The woofers not only have high power handling but also feature a robust mechanical design to ensure long-term reliability
• EV focuses on engineering transducers with linear frequency response, minimizing the need for additional equalization

Components and Testing

• All ETX components are designed from the ground up by Electro-Voice. No off-the-shelf components are used
• The handles, pole cups and amplifier chassis are die-cast aluminum, not plastic
• 18mm, 13-ply birch plywood with EVCoat is used throughout the ETX product line
• In addition to industry-standard pink noise abuse tests, all models must survive EV's proprietary 1,000-hour torture test that uses real-world signals driven beyond full output

Processing and Control

• System DSP presets support quick and easy setup via selections for type of use, crossover frequencies and top/sub combinations
• Includes a DSP preset for "true cardioid" configuration
• ETX employs the same proprietary PAL and TEMP limiters developed for Electro Voice's concert loudspeakers
• Boundary compensation filters are included so that an ETX loudspeaker sounds the same whether it is used as a floor monitor, on a tripod or suspended from a ceiling
• ETX offers user-adjustable features including delay out to several hundred feet, three-band parametric equalization, polarity and multiple high-pass crossover points
• The Class-D design of the amplifier is designed to be efficient and features blower-controlled thermal management, allowing it to work in hot environments. The fan is of a quiet design and does not turn on under normal circumstances
• Lockout mode helps prevent casual users from changing settings

LCD Interface Complete full-function DSP control via a single-knob interface. LCD screen for easy system set-up and monitoring: location/application EQ presets, limiter status, input level controls/meters and master volume control to ensure optimal gain structure