The Electro-Harmonix Riddle Q Balls is an Electro-Harmonix wah pedal, currently around $155.13. Close alternatives include the Emma DiscomBOBulator and the Electro-Harmonix Q-Tron Plus. It pairs well with the Soldano SLO 100 100-Watt Tube Guitar Amplifier and the Park P50 Classic.

Electro-Harmonix Riddle Q Balls

Electro-Harmonix · pedal

The Electro-Harmonix Riddle is a Q-Balls style guitar envelope filter pedal from Electro-Harmonix, delivering pick-attack-responsive auto-wah filter sweeps with Q, Range, Mix, and Drive controls. The Riddle produces funky, dynamic filter sweeps that follow playing dynamics with adjustable Q resonance for sharp filter peaks and Drive for adding harmonic content. Operates in both guitar and bass frequency ranges via Range control.

  • filter
  • envelope filter
  • resonance
  • responsive
  • drive
  • auto wah
  • peak
  • pick attack

Price updated Aug 27, 2026

Genres the Electro-Harmonix Riddle Q Balls is commonly used in

  • Funk
  • Soul
  • Experimental
    citedInferred from shared tonal signals, not a stated genre tag.
  • Alternative
    citedInferred from shared tonal signals, not a stated genre tag.

Amps that pair well with the Electro-Harmonix Riddle Q Balls

Pedals that stack with the Electro-Harmonix Riddle Q Balls

Cheaper alternatives

Boutique & premium upgrades

Similar charactersee all similar tone character →

See all alternatives to the Electro-Harmonix Riddle Q Balls (cheaper + boutique) →

Questions people ask

What are good alternatives to the Electro-Harmonix Riddle Q Balls?+

The closest matches in character are the Emma DiscomBOBulator, the Electro-Harmonix Q-Tron Plus, the Musitronics Mu-Tron III. Budget picks: Electro-Harmonix XO Micro Q-Tron, FTelettronica Envelope Filter, Electro-Harmonix Doctor Q. Boutique upgrades: Maxon AF-9 Auto Filter, Fairfield Circuitry Long Life, Ashdown Type 23 Three Band Filter.

What pairs well with the Electro-Harmonix Riddle Q Balls?+

Strong matches from rig and tone-complementarity evidence: Soldano SLO 100 100-Watt Tube Guitar Amplifier, Park P50 Classic, Walrus Audio EB-10 — Soldano SLO 100 100-Watt Tube Guitar Amplifier's own saturated character is the real reason this is worth trying.

How much does the Electro-Harmonix Riddle Q Balls cost?+

Around $155.13 (live listing price, updated Aug 27, 2026).

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Electro-Harmonix Riddle Q Balls — NodeTone