The Electro-Harmonix Riddle Q Balls is an Electro-Harmonix wah pedal, currently around $152.40. Close alternatives include the Emma DiscomBOBulator and the MXR Q Zone Fixed Wah. It pairs well with the Bad Cat Cub and the Cornell Romany 10 Tweed 10 watt Tube.

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.

What stands out

  • “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”

    — from the listing

  • “The Riddle delivers Q-Balls style pick-attack envelope filter for funky, dynamics-responsive auto-wah sweeps suited for funk, soul, and expressive players who want envelope filter dynamics response in their guitar or bass playing”

    — from the community notes

  • “delivering pick-attack-responsive auto-wah filter sweeps with q”

    — from the listing

  • “Its standout weakness is the envelope filter sensitivity requiring playing dynamics adjustment to trigger the filter sweep effectively”

    — from the community notes

  • “Drive adds harmonic overdrive to the filtered signal for additional texture”

    — from the reviews

  • filter
  • envelope filter
  • resonance
  • responsive
  • auto wah
  • peak
  • pick attack
  • harmonic
$152.40View on Reverb

Price updated Oct 23, 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.
  • Electronic
    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

Bad Cat Cub

Bad Cat

22% match

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)

Bad Cat Cub leans toward harmonically rich, and that's a real, usable character to pair with

Comes later in the signal chain

Cornell Romany 10 Tweed 10 watt Tube

Cornell

20% match
$1466.72via Reverb

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)

Into a dynamic tone, Cornell Romany 10 Tweed 10 watt Tube brings a pull toward compressed that's missing

Comes later in the signal chain

Ceriatone British Style 2525

Ceriatone

tonal match

Comes later in the signal chain

Ceriatone British Style 2525 leans this dynamic tone toward compressed, which it doesn't make on its own

Vox AC30S1 OneTwelve 30W 1x12 Combo

Vox

tonal match

Comes later in the signal chain

Vox AC30S1 OneTwelve 30W 1x12 Combo leans this dynamic tone toward compressed, which it doesn't make on its own

Fryette Power Station 100

Fryette

tonal match
$1199via Reverb

Comes later in the signal chain

Into a dynamic tone, Fryette Power Station 100 brings a pull toward compressed that's missing

Kustom HV30 Tube

Kustom

tonal match
$234.52via Reverb

Comes later in the signal chain

Into a dynamic tone, Kustom HV30 Tube brings a pull toward compressed that's missing

Mesa/Boogie Stiletto Deuce Stage II

Mesa Boogie

tonal match
$1147.50via Reverb

Comes later in the signal chain

Into a dynamic tone, Mesa/Boogie Stiletto Deuce Stage II brings a pull toward compressed that's missing

Friedman PT-20

Friedman

tonal match
$1499via Reverb

Comes later in the signal chain

Into a dynamic tone, Friedman PT-20 brings a pull toward compressed that's missing

Pedals that stack with the Electro-Harmonix Riddle Q Balls

Origin Effects RevivalDrive

Origin Effects

21% match

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)

Origin Effects RevivalDrive leans this dynamic tone toward compressed, which it doesn't make on its own

Comes later in the signal chain

Dunlop MXR Distortion Plus

Dunlop

20% match

shapes the dynamic responseShapes how the tone responds to picking dynamics rather than its frequency or gain. (dynamic → compressed)

Into a dynamic tone, Dunlop MXR Distortion Plus brings a pull toward compressed that's missing

Comes later in the signal chain

JHS Lucky Cat Delay limited edition

JHS Pedals

10% match
$281.42via Reverb

sits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.

JHS Lucky Cat Delay limited edition's pristine voice goes after Electro-Harmonix Riddle Q Balls in the signal chain — it's not there to compete with Electro-Harmonix Riddle Q Balls's own dynamic character — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

Boss DM-2 Delay

Boss

5% match
$196via Reverb

Run Boss DM-2 Delay after Electro-Harmonix Riddle Q Balls in the signal chain, where it won't crowd Electro-Harmonix Riddle Q Balls — goes in the amp's FX loop (or last, into a clean amp)

Comes later in the signal chain

DigiTech DOD Compressor 280

Digitech

tonal match
$119.23via Reverb

Comes later in the signal chain

Into a dynamic tone, DigiTech DOD Compressor 280 brings a pull toward compressed that's missing

DigiTech XBS Bass Squeeze

Digitech

tonal match
$95.94via Reverb

Comes later in the signal chain

Into a dynamic tone, DigiTech XBS Bass Squeeze brings a pull toward compressed that's missing

Fairfield Circuitry 20% More

Fairfield Circuitry

tonal match
$451.45via Reverb

Comes later in the signal chain

Into a dynamic tone, Fairfield Circuitry 20% More brings a pull toward compressed that's missing

Tech 21 CompTortion

Tech 21

tonal match

Comes later in the signal chain

Tech 21 CompTortion leans this dynamic tone toward compressed, which it doesn't make on its own

Cheaper alternatives

FTelettronica Envelope Filter

Ftelettronica

61% similarity
$87.94via Reverb

Shared character: soul, sensitivity, natural resonance

Fender Pour Over Envelope Filter

Fender

60% similarity
$122.74via Reverb

Shared character: soul, sensitivity, filter

Electro-Harmonix Micro Q-Tron Envelope Filter

Electro-Harmonix

57% similarity
$77.19via Reverb

Shared character: soul, sensitivity, natural resonance

Electro-Harmonix XO Micro Q-Tron

Electro-Harmonix

54% similarity
$77.19via Reverb

Shared character: extreme settings, peak, sensitivity

Electro-Harmonix Doctor Q

Electro-Harmonix

52% similarity
$85.50via Reverb

Shared character: soul, sensitivity, filter

Rocktron VII Deadly Sins Auto Wah

Rocktron

50% similarity
$43.97via Reverb

Shared character: sensitivity, filter, mix

Boutique & premium upgrades

Maxon AF-9 Auto Filter

Maxon

62% similarity
$263.83via Reverb

Shared character: soul, peak, sensitivity

Ashdown Type 23 Three Band Filter

Ashdown

50% similarity
$243.31via Reverb

Shared character: soul, sensitivity, filter

Death By Audio Deep Animation

Death By Audio

48% similarity
$270via Reverb

Shared character: sensitivity, filter, pick attack

Similar charactersee all similar tone character →

Emma DiscomBOBulator

pedal

57% similarity

Shared character: soul, sensitivity, filter

MXR Q Zone Fixed Wah

MXR

54% similarity

Shared character: peak, filter

Keeley Neutrino V2

Keeley

52% similarity

Shared character: peak, natural resonance, filter

Carl Martin Ottawa

Carl Martin

51% similarity
$145.40via Reverb

Shared character: soul, sensitivity, natural resonance

Carl Martin Ottawa Vintage Optical Envelope Auto-Wah/Envelope Filter

Carl Martin

51% similarity
$142.98via Reverb

Shared character: soul, sensitivity, natural resonance

Vox V863CA Auto Wah

Vox

51% similarity

Shared character: sensitivity, filter, pick attack

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 MXR Q Zone Fixed Wah, the Keeley Neutrino V2. Budget picks: FTelettronica Envelope Filter, Fender Pour Over Envelope Filter, Electro-Harmonix Micro Q-Tron Envelope Filter. Boutique upgrades: Maxon AF-9 Auto Filter, Ashdown Type 23 Three Band Filter, Death By Audio Deep Animation.

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

Strong matches from rig and tone-complementarity evidence: Bad Cat Cub, Cornell Romany 10 Tweed 10 watt Tube, Ceriatone British Style 2525 — Bad Cat Cub leans toward harmonically rich, and that's a real, usable character to pair with.

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

Around $152.40 (live listing price, updated Oct 23, 2026).

Compare

Related searches