The Ashdown Type 23 Three Band Filter is an Ashdown wah pedal, currently around $252.48. Close alternatives include the Emma DiscomBOBulator and the Maxon AF-9 Auto Filter. It pairs well with the Mesa Boogie Electra-Dyne Simul-Class 45/90-Watt 1x12" and the Laney Ironheart Foundry Dualtop 2-Channel 60W Head.
Ashdown Type 23 Three Band Filter
Ashdown · pedal
The Ashdown Type 23 is a three-band dynamic bass filter pedal from the UK-manufactured PRO FX series. Three frequency bands (high, mid, and low) are processed by independent voltage-controlled envelope filters that generate speech-like and funky bass tones. A single Sensitivity control sets how strongly the filters respond to playing dynamics. A switch on the pedal base varies the oscillation frequency of the selected filter for further tonal shaping. Requires 18V isolated power supply. Steel housing with anodized fascias and Neutrik jack sockets. Dimensions 63 x 108 x 120mm, 0.6kg.
- filter
- envelope
- frequency
- response
- bass
- envelope filter
- dynamic
- vocal
Price updated Aug 27, 2026
Genres the Ashdown Type 23 Three Band Filter is commonly used in
- Experimental
- Funk
- Soul
- Reggae
cited
Inferred from shared tonal signals, not a stated genre tag. - Alternative
cited
Inferred from shared tonal signals, not a stated genre tag.
Amps that pair well with the Ashdown Type 23 Three Band Filter
Mesa Boogie Electra-Dyne Simul-Class 45/90-Watt 1x12"
Mesa Boogie
24% matchMesa Boogie Electra-Dyne Simul-Class 45/90-Watt 1x12" stacks high gain on top of the mid-forward already here
Laney Ironheart Foundry Dualtop 2-Channel 60W Head
Laney
24% matchPut Laney Ironheart Foundry Dualtop 2-Channel 60W Head in front and the mid-forward tone leans further toward high gain
Friedman BE-Mini Head
Friedman
tonal matchPut Friedman BE-Mini Head in front and the mid-forward tone leans further toward high gain
Hughes & Kettner Warp 7
Hughes & Kettner
tonal matchRun mid-forward into Hughes & Kettner Warp 7 for more high gain on top
Synergy SL2 Module
Synergy
tonal matchRun mid-forward into Synergy SL2 Module for more high gain on top
Hiwatt Hi-Gain 100W Head
Hiwatt
tonal matchRun mid-forward into Hiwatt Hi-Gain 100W Head for more high gain on top
Hughes & Kettner Coreblade
Hughes & Kettner
tonal matchHughes & Kettner Coreblade stacks high gain on top of the mid-forward already here
Friedman Phil X Signature
Friedman
tonal matchFriedman Phil X Signature stacks high gain on top of the mid-forward already here
Pedals that stack with the Ashdown Type 23 Three Band Filter
ThorpyFX The Dane
ThorpyFX
17% matchRun mid-forward into ThorpyFX The Dane for more fuzzy on top
Wren and Cuff Box of War OG
Wren And Cuff
17% matchWren and Cuff Box of War OG layers fuzzy onto an already mid-forward signal
EarthQuaker Devices Afterneath
EarthQuaker Devices
6% matchRun EarthQuaker Devices Afterneath after Ashdown Type 23 Three Band Filter in the signal chain, clear of Ashdown Type 23 Three Band Filter's own gain stage — goes in the amp's FX loop (or last, into a clean amp)
Boss DD-2 Digital Delay
Boss
5% matchKeep Ashdown Type 23 Three Band Filter's dynamic voice out front: Boss DD-2 Digital Delay goes after Ashdown Type 23 Three Band Filter in the signal chain so its transparent voice doesn't muddy it — goes in the amp's FX loop (or last, into a clean amp)
Cusack Music Carolina Reaper Overdrive Fuzz
Cusack Music
tonal matchRun mid-forward into Cusack Music Carolina Reaper Overdrive Fuzz for more high gain on top
Dr. Scientist Frazz Dazzler V2
Dr Scientist
tonal matchPut Dr. Scientist Frazz Dazzler V2 in front and the mid-forward tone leans further toward fuzzy
Crowther Prunes
Crowther
tonal matchCrowther Prunes layers fuzzy onto an already mid-forward signal
EarthQuaker Devices Dirt Transmitter
EarthQuaker Devices
tonal matchRun mid-forward into EarthQuaker Devices Dirt Transmitter for more fuzzy on top
Cheaper alternatives
Electro-Harmonix Q-Tron Plus
Electro-Harmonix
67% similarityShared character: filter, response
Guyatone Wah Rocker WR3
pedal
66% similarityShared character: sensitivity, filter, attack
Ashdown Funk Faze
Ashdown
63% similarityShared character: sensitivity, filter, response
Animals Pedal Double Spy Mission is Imp Filter
Animals Pedal
63% similarityShared character: soul, sensitivity, filter
Carl Martin Ottawa
Carl Martin
97% similaritysimilar tone character
Carl Martin Ottawa Vintage Optical Envelope Auto-Wah/Envelope Filter
Carl Martin
97% similaritysimilar tone character
Similar charactersee all similar tone character →
Emma DiscomBOBulator
pedal
74% similarityShared character: soul, sensitivity, filter
Maxon AF-9 Auto Filter
Maxon
70% similarityShared character: soul, live_performances, sensitivity
Musitronics Mu-Tron III
Musitronics
67% similarityShared character: vocal, filter
IVY Filter IV v2
Ivy
63% similarityShared character: vocal, filter
Vox V863CA Auto Wah
Vox
97% similaritysimilar tone character
Death By Audio Deep Animation
Death By Audio
97% similaritysimilar tone character
See all alternatives to the Ashdown Type 23 Three Band Filter (cheaper + boutique) →
Questions people ask
What are good alternatives to the Ashdown Type 23 Three Band Filter?+
The closest matches in character are the Emma DiscomBOBulator, the Maxon AF-9 Auto Filter, the Musitronics Mu-Tron III. Budget picks: Electro-Harmonix Q-Tron Plus, Guyatone Wah Rocker WR3, Ashdown Funk Faze.
What pairs well with the Ashdown Type 23 Three Band Filter?+
Strong matches from rig and tone-complementarity evidence: Mesa Boogie Electra-Dyne Simul-Class 45/90-Watt 1x12", Laney Ironheart Foundry Dualtop 2-Channel 60W Head, Friedman BE-Mini Head — Mesa Boogie Electra-Dyne Simul-Class 45/90-Watt 1x12" stacks high gain on top of the mid-forward already here.
How much does the Ashdown Type 23 Three Band Filter cost?+
Around $252.48 (live listing price, updated Aug 27, 2026).
Compare
- vs Carl Martin Ottawa
- vs Carl Martin Ottawa Vintage Optical Envelope Auto-Wah/Envelope Filter
- vs Electro-Harmonix Micro Q-Tron Envelope Filter