Rare Ensoniq DP/4 Parallel Effects Processor! Just serviced, running at 230v (European voltage) so you’ll need a transformer to run it. $1199!

Overview: The Ensoniq DP/4 is a multi-effects processor released in the early 1990s. It is renowned for its rich and versatile sound processing capabilities, offering a wide range of high-quality effects suitable for various musical applications. The DP/4 features four independent effects units that can be used separately or combined in numerous configurations, making it a powerful tool for both studio and live performance environments.

Key Features:

  • Multi-Effects Processor:
    • Four Independent Effects Units: Each unit can operate separately or be linked together in various configurations for complex processing chains.
    • Wide Range of Effects: Includes reverb, delay, chorus, flanger, phaser, distortion, EQ, pitch shifting, and more.
  • Flexible Routing:
    • Configurable Algorithms: Multiple routing options allow for serial, parallel, or combined effect chains, providing great flexibility in sound design.
    • Stereo and Mono Processing: Supports both stereo and mono input/output configurations.
  • Control and Modulation:
    • Extensive Modulation Capabilities: LFOs, envelope followers, and MIDI control for dynamic and expressive effects.
    • Real-Time Control: Parameters can be adjusted in real-time via MIDI, footswitches, or control pedals.
  • User Interface:
    • Intuitive Front Panel: Includes a clear display and dedicated knobs for easy parameter adjustment and navigation.
    • Preset Management: 400 memory locations for user presets, enabling quick recall of custom settings.
  • Connectivity:
    • MIDI In/Out/Thru: Full MIDI implementation for integration with other MIDI devices and software.
    • Audio Inputs/Outputs: Multiple 1/4″ jacks for flexible audio routing and processing.

Sound Characteristics:

  • High-Quality Effects: Known for its lush, detailed reverbs and delays, rich choruses and flangers, and dynamic distortions.
  • Versatile Sound Shaping: Capable of producing subtle enhancements to extreme, creative sound manipulations.
  • Warm and Analog-Like: Many users appreciate the warm, analog-like quality of the effects, especially the reverb and chorus.


  • Genres: Suitable for all genres, including electronic, rock, pop, ambient, and experimental music.
  • Usage: Ideal for studio recordings, live performances, and sound design due to its flexible routing and high-quality effects.

Country of Manufacture:

  • USA: Designed and manufactured by Ensoniq in the United States, known for their innovative and high-quality audio products.

Notable Features:

  • Multi-Unit Processing: Four independent effects processors in one unit, offering unparalleled flexibility.
  • Extensive Modulation: Capable of creating dynamic and evolving effects through extensive modulation options.
  • User-Friendly Interface: Intuitive design with easy access to a wide range of parameters and settings.

Notable Users:

  • Nine Inch Nails (Industrial/Rock): Trent Reznor has used the DP/4 in both studio recordings and live performances for its versatile and high-quality effects.
  • Depeche Mode (Synth-Pop): Known for their intricate soundscapes, Depeche Mode has utilized the DP/4 to enhance their recordings.
  • Autechre (Electronic/IDM): The influential electronic duo has used the DP/4 for its complex and unique sound processing capabilities.

The Ensoniq DP/4 is a powerful and versatile multi-effects processor known for its high-quality effects and flexible routing options. With four independent effects units, extensive modulation capabilities, and a user-friendly interface, the DP/4 offers exceptional performance and creative potential for musicians and producers. Whether used in studio recordings, live performances, or sound design, the Ensoniq DP/4 delivers rich, dynamic effects that can enhance any musical project.

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