A meticulous resurrection of the four-engine legend.

DEEP/4 is a painstaking recreation of one of the most powerful multi-effects processors ever built: The Ensoniq DP/4. Every algorithm has been rebuilt at the lowest level from the original 24-bit DSP hardware.

43 algorithms, mathematically verified against the original DSP architecture. No guesswork.

Import presets directly from the original hardware via SysEx — load classic libraries like Don Solaris' Essentials Vol1 and hear them exactly as they were meant to sound.

Four Independent Effects Engines
The DEEP/4 is a powerhouse multi-effects processor featuring 43 fully programmable, high-fidelity algorithms including reverbs, chorus, flanging, delays, distortion, and pitch shifting. Operate it as a single massive effects system, a pair of stereo processors, or four entirely independent units. Its advanced routing matrix supports true serial, parallel, and feedback configurations to sculpt complex effect topologies that conventional units simply can't touch.

Flexible Multi-Unit Routing
Run all four units in series for massive effect chains, split them into parallel paths for layered textures, or use feedback routing to create evolving, self-modulating soundscapes. DEEP/4 provides independent routing control for each pair (A/B and C/D) plus a main bus link — supporting serial, parallel, and two feedback configurations with adjustable feedback amount. Use it as a single 4-unit processor, two independent stereo pairs, or four standalone effects.

43 Algorithms Across 7 Categories
From lush reverbs and complex multi-tap delays to pitch shifters, dynamics processors, and guitar amp simulations — every algorithm from the original hardware is here, rebuilt at the lowest level and fully programmable.

Home Page - https://www.temeculadsp.com/deep4

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