ao link
Filter content by area of interest
Amps
Boost and Overdrive
Delay
Distortion
Fuzz
Guitars
Modulation
Pitch
Reverb
Utility
All
All

40 of the Best Upper Octave Fuzz Pedals - from my own collection

AnasoundsBasic AudioBearfoot FXBeetronics FXBig Ear PedalsBig Muff Style FuzzCaroline Guitar CompanyCitadel ElectronicsDanelectroDemiurge InstrumentsDiamond PedalsDrunk BeaverEarthQuaker DevicesElectro-HarmonixElectronic Audio ExperimentsFjord FuzzFredric EffectsFulltone EffectsFuzzFuzz ImpFuzz-Drive and FuzzstortionGermanium FuzzGreat Eastern FX Co.Hangman fxHello Sailor EffectsJackson AudioJAM PedalsKeeley EngineeringKMA AudioLastgasp Art LaboratoriesLoe SoundsMaestro Style FuzzModulated FuzzMu-TronMythos PedalsOctave FuzzOddball FuzzOpAmp FuzzOscillating FuzzRedbeard EffectsRitual DevicesSentimental Bob ElectronicsSilicon FuzzSitek Guitar ElectronicsSpaceman EffectsStone Deaf EffectsSuper-Fuzz StyleVahlbruch FXZorg Effects+-
2026-GPX-40-Octave-Fuzz-Selection-700-.jpg

This project has been a long time in the making - I actually started off this compilation properly last autumn, and then have iterated the final selection a number of times since then - before reaching this final format. I apologise to anyone whom I’ve inadvertently left out - I still have a number of Octave Fuzzes to require - that task is never ending!

 

I own around 80 octave fuzzes so far - and this is near enough half of those - where I’ve mostly leant into compact editions - and ...

Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

EarthQuaker Devices rolls out new Towers Modulated Stereo Reverberant Filter with 8 Presets onboard

Ambient EffectsDigital ReverbEarthQuaker DevicesReverbSpacey Reverb+-
2026-GPX-EQS-Towers-Reverb-700.jpg

Circa EQD’s 10th Reverb pedal. A very straigftforward, but somewhat unusual confection, with cool stretch function on the second footswitch.

 

You have individual full stereo connections, alongside an Expression Jack. And you get some great dynamics in manipulating the Expression and Stretch function on-the-fly. All-round a rather handy take on reverb - balancing filtering and modulation.

 

Controls - Length, Mode : Manual | Envelope | LFO, Frequency, Mix, Preset : 1-8, Filter, Stretch ...

Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

2026 January Pedal-Chain Update - Episode I - A Flying Start!

Amp and Cab IR SimBig Muff Style FuzzBoostBoost and OverdriveBrown Sound DistortionCarl MartinChorus and VibratoCitadel ElectronicsDeath By AudioDistortionDOD EffectsDriveDrunk BeaverDSM & HumboldtDual-DriveDumble Style OverdriveEarthQuaker DevicesElectro-HarmonixFjord FuzzFlattley Guitar PedalsFuzzKlone and Transparent OverdriveLichtlaerm AudioMad Professor EffectsMarshall Style DistortionMetal DistortionMissing Link AudioModelling AmpModulationMulti-DriveMulti-FXMulti-GainOCD Style OverdriveOctave FuzzOpAmp FuzzOverdrivePedal ChainPhaserPreAmpRhPf ElectronicsSeymour DuncanSilicon FuzzSuperlunarTube OverdriveTubescreamer Style OverdriveUni-Vibe and VibeUtilityValetonWampler+-
2026-January--Pedal-Chain-700.jpg

January has been a bumper start for the year - with lots of killer arrivals - especially the DSM & Humboldt Dumblifier which I’ve been hugely impressed with.

 

Also my most formidable NAMM coverage to-date - where I only started work properly on the 8th of January - but have managed to do 60 articles since that time - which is a record of course, as is the week of 20 posts.

 

I feel I covered all the key moments - and mixed up new and old in my usual inimitable fashion.

 

There was ...

Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

EarthQuaker Devices unleashes ZEQD-Pre EF86 Tube Preamp with 3-Band EQ and Boost

BoostBoost and OverdriveEarthQuaker DevicesOverdrivePreAmpTube Overdrive+-
2026-GPX-EQD-ZEQD-Pre-700.jpg

There has been a significant pattern of pedal builders making tube preamps recently, and this versatile variant totally fits that bill.

 

EQD describes it as a combined Preamp, Headphone Amp, Boost, DI and EQ. The device has a super handy left-hand control panel which includes 1/4" Headphone Out, DIN DI Direct Out, Ground Lift Button, and Cab Bypass Button.

 

The Cab Bypass Button is indicative that there is an analog Cab simulator onboard - for going direct out - which you can bypass if ...

Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

End of Year Pedal Chain Update - Class of 2025

Ambient EffectsAnalog DelayBeat MachineBecos FXBest in ClassBig Muff Style FuzzBitcrushing and Lo-FiBlender and MixerBlue ColanderBlue FX DevicesBlues Breaker Style OverdriveBoostBoost and OverdriveBossBrelliottBrown Sound DistortionButterfly EffectsChase Bliss AudioColortone PedalsCompressorCoriolis EffectsCornerstone Music GearCosmic Loop FXCrazy Tube CircuitsCryBabyDelayDigital DelayDigital ReverbDistortionDown-TunerDriveDrive WorkstationDrunk BeaverDryBell EffectsDual-DriveEarthQuaker DevicesEchoverbElectro-HarmonixExpressionFlangerFlatley Guitar PedalsFortin AmpsFuzzFuzz-Drive and FuzzstortionGermanium FuzzGlitchGranular DelayGreat Eastern FX Co.Hangman fxHarmonizerIK MultimediaIntensive Care AudioJim DunlopLo-Fi DelayMarshall Style DistortionMetal DistortionModulated FuzzModulationModulation WorkstationMulti-DriveMulti-FXMulti-GainOctave FuzzOctaverOpAmp FuzzOverdrivePastFXPedal ChainPitchPitch-ShiftingPlate ReverbPlutoneium EngineeringPoly EffectsPolyendRack Style ReverbRat Style FuzzRedbeard EffectsReverbReverb WorkstationRotary SpeakerShimmer ReverbSilicon FuzzSinvertekSolar PedalsSpaceman EffectsSpacey ReverbTeaching MachinesThorpyFXTone Bender Style FuzzTubesteaderTweed Style OverdriveUtilityWah and Fixed WahWampler+-
2025-December-Class-Of-GPX-Pedal-Chain-700.jpg

New Pedals in the Class of 2025 Pedal-Chain Snapshot = 41

 

[OCTOBER]  = 9

[NOVEMBER] = 6

[MARCH] = 5

[SEPTEMBER] = 5

[AUGUST] = 4

[JANUARY] = 3

[FEBRUARY]  = 3

[APRIL] = 2

[JUNE] = 2

[MAY] = 1

[JULY] = 1

 

[A-Z by Brand]

  1. Becos FX CompIQ Pro Yuna Soft Knee Blackmer VCA Studio Style Compressor [SEPTEMBER]
  2. Blue Colander Grimrobe Dual Cascaded Super Rat [OCTOBER]
  3. Blue FX Devices Fuzz Fields Ultimate Modulated Fuzz [SEPTEMBER]
  4. Boss RT-2 Rotary Ensemble Leslie / Rotary Speaker
...
Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

EarthQuaker Devices' Sunn O))) HalfLife Fer KGR Harmony Collaboration sells out in under 100 minutes

DistortionEarthQuaker DevicesFuzzKGR HarmonyOctave FuzzOpAmp FuzzRat Style FuzzSunn O)))+-
2025-GPX-EQD-Sunn-O-Live-Pedal-KGR-700.jpg

This is the second time EQD has collaborated with KGR Harmony’s Japanese Iron Foundry - famous for its relief-design wrought-iron / cast-iron enclosures. And here we get the most compact variant of the Sunn O))) Life Pedal do date - essentially the V4 edition of that circuit - named the ’HalfLife Fer’.

 

Only 200 of these were made - and they barely lasted an hour and half. So this is more my documenting the provenance of this circuit than putting up yet another promo feature. It’s all ...

Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

2025 Best New Fuzz Pedals of the Year

Best in ClassBig Muff Style FuzzBlind Panic DevicesBlue FX DevicesCoriolis EffectsDrunk BeaverEarthQuaker DevicesElectronic Audio ExperimentsEmmergy FXFarmer Factory EffectsFjord FuzzFredric EffectsFunny Little BoxesFuzzFuzz Face Style FuzzFuzz-Drive and FuzzstortionGated and Velcro FuzzGermanium FuzzGreat Eastern FX Co.Hangman fxHello Sailor EffectsIntensive Care AudioManson Guitar WorksModulated FuzzMoose ElectronicsOctave FuzzOddball FuzzOpAmp FuzzOscillating FuzzPasta PedalsRainger FXRedbeard EffectsRhPf ElectronicsSilicon FuzzSoundLad LiverpoolSpaceman EffectsSuper-Fuzz StyleTeaching MachinesThorpyFXTone Bender Style FuzzWampler+-
2025-GPX-Best-of-New-Fuzzes-700.jpg

Probably the strongest selection of the year - each one of these is amazing and sounds killer. But then agin similar was true of the Overdrives. I’m very much a fuzz fanatic - so his selection has to take the edge - what a selection!

 

This selection includes 3 from EarthQuaker Devices, 2 from Drunk Beaver, 2 from Fjord Fuzz, and 2 from ThorpyFX.

 

It also includes the likely pedal of the year - within a selection of 10 award winners here - these are so good - I could have labelled even ...

Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

2025 October Pedal-Chain Updated - Episode X - Big Thrills and Overspills

Blammo ElectronicsBlue ColanderBoostBoost and OverdriveBrown Sound DistortionChase Bliss AudioCoriolis EffectsCrazy Tube CircuitsDr. No EffectsDriveDrive WorkstationDual-DriveEarthQuaker DevicesElectro-HarmonixEmpty Head EffectsFlangerFortin AmpsFuzzGamechanger AudioGermanium FuzzGigaheartsHangman fxHarmonic OverdriveHello Sailor EffectsMarshall Style DistortionMetal DistortionModulationModulation WorkstationMulti-DriveMulti-FXMulti-GainOctave FuzzOddball FuzzOpAmp FuzzOscillating FuzzOverdrivePastFXPedal ChainPhaserRat Style FuzzSilicon FuzzSpaceman EffectsTanabeTeaching MachinesTone Bender Style FuzzTubesteaderVox Style Distortion+-
2025-October-GPX-Pedal-Chain-700.jpg

October was a super busy month - one of the busiest ever - with such a scope and scale and body of work covered - I’m quite shattered as a result!

We had of the penultimate Events of the year :

  • The 2nd Woking Boutique Guitar Show
  • Kempton Park London International Guitar Show

And around one dozen key posts  as below also :

  • Letter from Dr.No
  • Teaching Machines FuzzBillion Component Combinations Wheels Gain-Shaper
  • Hangman fx DAGG’R Dynamic Auto-Gain/Gate Mighty Morphing Gain-Ramper
...
Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

EarthQuaker Devices rolls out cool Mini Barrows Fuzz Attacker Tone Bender MKII style Germanium Fuzz

EarthQuaker DevicesFuzzGermanium FuzzTone Bender Style Fuzz+-
2025-GPX-EQD-Barrow-Mini-Fuzz-700.jpg

It’s interesting that EQD has only just recently discontinued another of its Tone Benders - the MKIII style Park Fuzz Sound - which was discontinued as of the 16th of this month. Funnily the limited edition EQD Black Ash Fuzz which I own - was also a MKIII Bender variant. I still thought I should get the Park Fuzz Sound for a sense of completion, while I probably prefer to be picking up a MKII on this occasion!

 

I actually already have a Mini 2 Knob Tone Bender MKII - courtesy of the ...

Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions

2025 August Pedal-Chain Update - Episode VIII - The Double Down Paired Edition

Ambient EffectsBlind Panic DevicesBlues Breaker Style OverdriveBoostBoost and OverdriveBossCatastro FXChorus and VibratoColortone PedalsCornerstone Music GearDelayDigital DelayDigital ReverbDistortionDrunk BeaverEarthQuaker DevicesFjord FuzzFlangerFuzzFuzz Face Style FuzzFuzz ImpGermanium FuzzHarmonic OverdriveHarmonic PercolatorKlone and Transparent OverdriveMetal DistortionModulationModulation WorkstationMulti-FXOctaverOddball FuzzOscillating FuzzOverdrivePedal ChainPhaserPitch-ShiftingPreAmpRack Style ReverbReverbRhPf ElectronicsShimmer ReverbSilicon FuzzSpaceman EffectsSpacey ReverbSwellThorpyFXTimmyTone Bender Style FuzzTremoloUni-Vibe and VibeWalrus Audio+-
2025-August-GPX-Pedal-Chain-V2-700.jpg

August turned out a little bit different than expected. Not so many releases - as expected - but really busy regardless - with a number of Marquee Events and Articles throughout the month. With the king of the crop being the Extended Capacitor Primer - to which I’ve just added a further section on Capacitor Lifespan. Obviously I hit 15,000 followers on Instagram - which is a significant achievement - a really killer month all-round with some big articles - meaning I’m a little bit burned out ...

Stefan KarlssonPopularCommentsRSS FeedContent Subscriptions
Content Subscriptions
Sign Up
Profile
Stefan Karlsson
Stefan Karlsson
Guitar Pedal X
News Navigation






















May31
































Waiting