The Source Audio Spectrum is a Source Audio envelope filter pedal, currently around $207.57. Close alternatives include the Maxon AF-9 Auto Filter and the Subdecay Proteus MKII Sample. It pairs well with the Laney DBC410 Digbeth 4x10 Cabinet and the Peavey MiniMAX.
Source Audio Spectrum
Source Audio · pedal
The Source Audio Spectrum Intelligent Filter is a stereo filter pedal built around three distinct modes -- Tron, Dumpling and Thrust -- covering classic auto-wah quack, enveloped phaser sweeps, and distorted synth-like octave voices with raunchy saturation. Its strength is the relationship between input envelope and filter response, which reviewers describe as unusually natural and fluid where envelope filters are typically fiddly to set up, tracking pick attack closely and reacting musically at both soft and hard dynamics. It is completely free of the hiss and hum common to analogue envelope filters. Six factory patches ship onboard, with the Neuro desktop and mobile editors opening deeper sound design, alongside MIDI control. Works equally well on guitar and bass.
What stands out
“Strengths: Multiband intelligent filter applies independent frequency band processing for unique harmonic shaping and tonal control with full MIDI and app programmability at Source Audio quality”
— from the reviews
“alongside midi control”
— from the listing
“The Source Audio Spectrum delivers multiband intelligent filtering at Source Audio quality for studio, ambient, and experimental players who want advanced multiband signal processing with MIDI and app control”
— from the community notes
“its standout strength is the multiband intelligent filter analysis with independent frequency band processing and full midi and app control at source audio quality”
— from the community notes
“Use-case wise it suits studio and experimental players who want multiband filter processing at Source Audio MIDI quality”
— from the community notes
Trade-offs
“which reviewers describe as unusually natural and fluid where envelope filters are typically fiddly to set up”
— from the listing
- filter
- midi
- frequency
- full
- studio
- bass
- source audio spectrum
- auto wah
Price updated Oct 23, 2026
Genres the Source Audio Spectrum is commonly used in
- Experimental
- Ambient
- Funk
cited
Inferred from shared tonal signals, not a stated genre tag. - Electronic
cited
Inferred from shared tonal signals, not a stated genre tag. - Soul
cited
Inferred from shared tonal signals, not a stated genre tag. - Post Rock
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Source Audio Spectrum
Laney DBC410 Digbeth 4x10 Cabinet
Laney
21% matchBoth lean toward full and tight respectively — close enough in character that they complement instead of clashing
Comes later in the signal chain
Peavey MiniMAX
Peavey
21% matchPeavey MiniMAX's tight voice suits Source Audio Spectrum's own full character
Comes later in the signal chain
Gallien-Krueger MB108
Gallien Krueger
tonal matchComes later in the signal chain
Put Gallien-Krueger MB108 after Source Audio Spectrum
Gallien-Krueger MB150S-112 Bass Combo
Gallien Krueger
tonal matchComes later in the signal chain
Put Gallien-Krueger MB150S-112 Bass Combo after Source Audio Spectrum
Gallien-Krueger MB210MK2
Gallien Krueger
tonal matchComes later in the signal chain
Put Gallien-Krueger MB210MK2 after Source Audio Spectrum
Revv Dynamis D25 25W 1x12 Combo
Revv
tonal matchComes later in the signal chain
Revv Dynamis D25 25W 1x12 Combo goes after Source Audio Spectrum in the chain
Revv Dynamis D20 MkII 20W Head
Revv
tonal matchComes later in the signal chain
Put Revv Dynamis D20 MkII 20W Head after Source Audio Spectrum
EVH 410
Evh
tonal matchComes later in the signal chain
Put EVH 410 after Source Audio Spectrum
Pedals that stack with the Source Audio Spectrum
Airis Effects 51-Filthy
Airis Effects
17% matchBoth lean toward full and tight respectively — close enough in character that they complement instead of clashing
Comes later in the signal chain
Shin's Music Dumbloid
Shins Music
15% matchSource Audio Spectrum's full character and Shin's Music Dumbloid's tight voice sit in the same lane rather than fighting each other
Comes later in the signal chain
TC Electronic Triple Flashback Delay
TC Electronic
7% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Keep Source Audio Spectrum's full voice out front: TC Electronic Triple Flashback Delay goes after Source Audio Spectrum in the signal chain so its tight voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
Electro-Harmonix Pico Canyon
Electro-Harmonix
5% matchsits in the right chain slotPlaced for where it does its job cleanly in the chain, not for a tonal interaction with the anchor.
Electro-Harmonix Pico Canyon's pristine voice goes after Source Audio Spectrum in the signal chain — it's not there to compete with Source Audio Spectrum's own full character — goes in the amp's FX loop (or last, into a clean amp)
Comes later in the signal chain
EarthQuaker Devices Swiss Things
EarthQuaker Devices
EarthQuaker Devices Utility Series Buffer Preamp
EarthQuaker Devices
tonal matchComes later in the signal chain
Put EarthQuaker Devices Utility Series Buffer Preamp after Source Audio Spectrum
Hiwatt WEM Copicat Boost
Hiwatt
tonal matchComes later in the signal chain
Put Hiwatt WEM Copicat Boost after Source Audio Spectrum
Maxon DB10 Dual Booster
Maxon
tonal matchComes later in the signal chain
Put Maxon DB10 Dual Booster after Source Audio Spectrum
Cheaper alternatives
Dr. Scientist Dusk
Dr Scientist
55% similarityShared character: one octave, filter, ambient
Animals Pedal Double Spy Mission is Imp Filter
Animals Pedal
50% similarityShared character: mono synth, one octave, filter
Electro-Harmonix Blurst
Electro-Harmonix
49% similarityShared character: mono synth, filter, ambient
Ibanez PT EQ
Ibanez
46% similarityShared character: filter, bass, studio
Carl Martin Ottawa
Carl Martin
43% similarityShared character: mono synth, tight tracking, filter
Boutique & premium upgrades
GFI System Enieqma Equalizer
Gfi System
48% similarityShared character: studio
Pigtronix Resotron Analog Tracking Filter
Pigtronix
47% similarityShared character: phaser, mono synth, tight tracking
Meris Ottobit X
Meris
47% similarityShared character: mono synth, tight tracking, filter
Free The Tone PA-1QA Programmable 10 Band EQ
Free The Tone
45% similarityShared character: studio
Similar character
Maxon AF-9 Auto Filter
Maxon
50% similarityShared character: filter, pick attack, bass
Subdecay Proteus MKII Sample
Subdecay
50% similarityShared character: mono synth, filter, pick attack
DigiTech DSP 256XL
Digitech
45% similarityShared character: studio, full
Emma DiscomBOBulator
pedal
43% similarityShared character: mono synth, tight tracking, filter
See all alternatives to the Source Audio Spectrum (cheaper + boutique) →
Questions people ask
What are good alternatives to the Source Audio Spectrum?+
The closest matches in character are the Maxon AF-9 Auto Filter, the Subdecay Proteus MKII Sample, the DigiTech DSP 256XL. Budget picks: Dr. Scientist Dusk, Animals Pedal Double Spy Mission is Imp Filter, Electro-Harmonix Blurst. Boutique upgrades: GFI System Enieqma Equalizer, Pigtronix Resotron Analog Tracking Filter, Meris Ottobit X.
What pairs well with the Source Audio Spectrum?+
Strong matches from rig and tone-complementarity evidence: Laney DBC410 Digbeth 4x10 Cabinet, Peavey MiniMAX, Gallien-Krueger MB108 — Both lean toward full and tight respectively — close enough in character that they complement instead of clashing.
How much does the Source Audio Spectrum cost?+
Around $207.57 (live listing price, updated Oct 23, 2026).