audiobriefs
8:18in productionCh. 1 · Analog. Stereo. Stomp./ 8:18 · ceiling 15 min
Effects & pedals · Guitars & amps

Electro-Harmonix Polychorus

A stereo analog stomp box with four modes, no memory, and a 24V hunger — built for players who choose width over convenience.

The Electro-Harmonix Polychorus Mk2 is a stereo analog stomp-box modulation pedal for guitar. It offers chorus, flanger, double track, and filter matrix modes via toggle switches. It has one input and two outputs. It requires 24V power. It has no preset memory.

Chapters & takeaways4
  1. 0:47
    Analog. Stereo. Stomp.

    It is a stereo analog stomp box for guitar, not a rack unit or digital processor.

  2. 1:48
    Two Outputs, No Compromise

    One input, two outputs — stereo is baked into its signal path from the start.

  3. 3:34
    Four Modes, One Switch

    Four modes — chorus, flange, double track, and filter matrix — each with its own character and no overlap.

  4. 4:52
    24 Volts. Zero Memory.

    It demands 24V and offers zero preset memory — no recall, no save, no compromise.

Worth your time?

Yes. Use the whole thing.

3.5/ 5
What works
  • warm-responsive-analog-tones
  • hands-on-mode-switching
  • filter-matrix-and-double-track-modes
What does not
  • preset-memory
  • 9v-compatibility
  • mono-output-option
Use it if
  • players-who-value-stereo-analog-modulation
  • players-with-24v-power-supplies
Skip it if
  • players-who-need-presets
  • players-in-mono-rigs
The written brief1 min read

What it is and what it was built for

It is an analog stereo stomp-box modulation pedal built for electric guitar but usable with other electronic instruments.

How it works, in terms a player would use

It has one input and two outputs for stereo operation. Four toggle switches select between chorus, flanger, double track (short delay), and filter matrix modes. It runs on a 24V power supply. There are no presets or memory.

What it does better than anything else

It delivers organic, stereo-width modulation with immediate tactile switching between four distinct analog effects — especially the filter matrix and double track modes, which are rare in stomp-box form.

What it does badly

It does not store settings. It cannot run on common 9V supplies. It has no mono output option. Its stereo operation forces routing decisions that complicate mono rigs.

What people made with it

No verified information about specific recordings, artists, or works made with it appears in the source material.

Who should use it, and who should not

Players who value hands-on analog stereo modulation and already use 24V power supplies should use it. Players who rely on preset recall, gig with mono systems, or lack 24V adapters should not.

Is it worth your time

It is worth your time if you need warm, responsive analog stereo modulation with hands-on mode switching and no digital interpolation. It is not worth your time if you need presets, mono compatibility, or standard 9V power.

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