Repro-5 is u-he's component-level recreation of the Sequential Prophet-5, the 1978 five-voice polysynth that shaped decades of pop, film, and electronic music. Rather than sampling or approximating the hardware, u-he modeled the actual circuit behavior — the oscillators, the four-pole lowpass filter, and the subtle voice-to-voice drift that gives the original its living, breathing quality. The result is one of the most convincing emulations of this instrument you can run in a DAW.
It excels at exactly what the hardware was famous for: fat unison basses, lush pads, glassy keys, and brass that sits with real weight in a mix. Two multi-wave oscillators, a resonant filter that self-oscillates musically, and a generous modulation section cover classic subtractive territory, while u-he's additions — a four-mode distortion unit, delay/chorus, EQ/resonator, plate reverb, and MPE support — push it beyond a pure period piece. Over 950 presets give you a fast on-ramp to usable sounds.
The trade-off is CPU. Faithful circuit modeling is expensive, and stacking eight voices with unison and higher oversampling can tax even capable machines, so you'll often bounce or freeze tracks. The interface is another honest caveat: it mirrors the hardware panel closely, which looks authentic but feels cramped and dated on large modern displays. And its scope is narrow by design — this is one iconic voice done exceptionally well, not a versatile everything-synth.
Against its alternatives, that focus defines the choice. Arturia's Analog Lab V spreads across dozens of emulations but none with this depth; u-he's own Hive 2 is a lean, CPU-friendly modern workhorse; Avenger 2 is a sprawling preset-driven powerhouse aimed at contemporary production. Repro-5 instead goes deep on a single legend. At €149 — bundled with the monophonic Repro-1 — it's fair value for authenticity of this caliber. Choose it if you want the Prophet-5 sound, not a Swiss-army synth.