Twelve things the Prophet-5 can do that aren't obvious from staring at the panel. Polyphony changes the rules, and the Rev switch hides a lot.
Unlike LFO, which modulates all five voices in lock-step, Poly-Mod sources (Filt Env, Osc B) run independently on every voice. Hold a chord with Poly-Mod → Filter and each note opens up on its own envelope; with Poly-Mod → Freq A and Osc B keyboard off, you get per-voice random pitch wobble. This is the Prophet's secret weapon and what makes its pads breathe.
The Rev switch doesn't just change the filter (SSI 2140 vs Curtis CEM 3320) — it also reshapes the envelope curves. Rev 1/2 envelopes are flat/linear (SSM-style); Rev 3 envelopes are curved (Curtis-style). For sharp percussion and aggressive bass, Rev 1/2's flat decay punches harder. For pads and brass that need to bloom, Rev 3's curve is smoother. Audition both on every patch.
Drop Osc B into Lo Freq mode and turn off its Keyboard tracking — it becomes a low-frequency oscillator that runs INDEPENDENTLY on each voice. Route it via Poly-Mod to the filter or to Osc A frequency, and every chord note vibrates at its own rate. This is the canonical Prophet trick the global LFO can't do.
Higher number = MORE stable. Vintage 4 is the clean, in-tune Rev 4. Vintage 1 is full Rev 1 chaos: drifty pitch, slow envelope variation, the works. For most modern productions you want 3 or 4. For early-'80s authenticity (Thriller, This Must Be the Place), drop to 2. For lo-fi or experimental, go to 1. Vintage doesn't change the patch — it changes the instrument's behavior.
Enable Osc A Sync (which slaves it to Osc B), then route Poly-Mod's Filt Env to Freq A. Now playing a note sweeps Osc A's pitch through Osc B's overtone series while keeping the perceived pitch glued to Osc B. This is the angry sync lead that defined a generation. Start with Filt Env Poly-Mod at 5, Filter Envelope decay around 4, and adjust the Filter Envelope shape until the sweep feels right.
Hit Unison and the Prophet stacks all five voices onto your single played note — instant fat mono lead. Crank Unison Detune to 4-6 for a thick, swimming pool of saws (Jump territory). One pitfall: Glide behaves differently in Unison vs poly mode; in Unison it's classic monosynth portamento, in poly mode it's per-voice from the previous chord. Match Glide to the playing style.
The Wheel-Mod section is conceptually separate from the LFO panel. The Source Mix knob picks between LFO and Noise; then mod-wheel position scales how much of that source reaches each enabled destination. You can have LFO Initial Amount at 0 (no always-on vibrato) but full mod-wheel vibrato when needed — this is how most pros set up expressive leads.
Real instruments get brighter the higher you play. Set Filter Keyboard to Half or Full and the cutoff opens with rising pitch, so high notes ring out and low notes stay rounder. Crucial for piano/Rhodes/brass emulations. Set to Off for synthetic, equal-brightness pads where every chord note has the same character.
On the original Prophet-5, the cleanest plucky sound comes from setting both envelopes the same — short A, medium D, low S, short R on both Filter and Amp. The sound ends as the filter closes and the amp tail dies together, no lingering tail. This Must Be the Place is a textbook example of mirrored envelopes.
Resonance at 6-7 with Filter Env Amount at 5-6 and a slow Filter Attack (3-5) produces the classic Prophet 'wow' sweep — almost vocal. Add Filter Keyboard Half for a brighter top end on chord voicings, and you've got pads that sound like a singer warming up. Be careful: resonance above 8 on Rev 1/2 can squeal aggressively at high cutoff.
The Release Hold switch dates back to a Rev 1 quirk: when off, both envelopes use fast release regardless of the release knob, until you hit the sustain pedal — then the release knob takes over (like a piano damper). For modern playing leave it on. For period-correct pedal-controlled releases (most '70s/'80s recordings), turn it off and play with the sustain pedal as the release controller.
Velocity (how hard) and Aftertouch (held pressure) route separately on the Prophet — Velocity to Filter and/or Amp, Aftertouch to Filter and/or LFO. The most expressive setting for leads: Velocity → Filt (harder = brighter) + Aftertouch → LFO (lean into the key for vibrato). That's two independent gestures on a single key, which is more than most modern soft-synths give you without scripting.