Pricing and availability

* Product prices and availability are updated by Equipboard every 24hrs and are subject to change. Equipboard may receive compensation for purchases made at participating retailers linked on this site. This compensation does not affect what products or prices are displayed, or the order of prices listed. For more information, please refer to our affiliate disclosure.

Description

Features:

  • Optical Envelope Filter ala’ vintage Mu-Tron III
  • Funky, liquid, vowel-like Wah effects
  • Low Pass, Band Pass and High Pass filters
  • Low and High operation ranges
  • Threshold and Peak sliders
  • Up/Down Drive switch
  • True Bypass Switching
  • New look - Same great sound.

You may have noticed that the Maxon AF-9 Auto Filter has undergone a facelift.

Specifically, the Sensitivity & Peak faders have been replaced by rotary pots and the slider switches are now toggles.

This change was made out of necessity due to the discontinuation of the fader pots that had been used on this model for nearly 40 years (original release date was 1981).

While these changes may have been necessary, Maxon saw no reason to update the AF-9’s classic, watery, 3-dimensional filtering that so many players have to come to count on over the years. So, you can expect the latest version of this classic quacker to stand up to the original.

While change may be inevitable, if it ain’t broke, then don’t fix it.

The Maxon AF9 Auto Filter takes the most desirable auto-wah and swept filter effects and offers them up in a compact, user-friendly package. Opto-coupler circuitry produces the shimmering, watery filtering of legendary vintage units. Threshold and Peak sliders control the degree of effect; while Range and Drive switches determine range and direction of the filter sweep. Three selectable filter types (Low Pass, Band Pass, and Hi Pass) and a frequency range of 100 Hz – 4 kHz allow the AF9 to function with virtually any instrument or input signal.

Product specs

Brand Maxon
Model AF-9 Auto Filter
Finish Yellow
Year 2010s
Made In Japan
Categories Filter and Wah Pedals

FAQs

What type of effect does the Maxon AF-9 Auto Filter pedal produce?

The Maxon AF-9 Auto Filter is an envelope filter pedal, creating dynamic, auto-wah effects that respond to your playing intensity, adding a funky, expressive quality to your guitar tone.

Is the Maxon AF-9 Auto Filter suitable for bass guitar?

Yes, the Maxon AF-9 Auto Filter works well with bass guitars, offering a responsive and rich envelope effect that enhances the low-end frequencies without losing clarity.

What power supply does the Maxon AF-9 Auto Filter require?

The Maxon AF-9 Auto Filter requires a standard 9V DC power supply, which is typical for many guitar effects pedals.

How does the Maxon AF-9 Auto Filter compare to a traditional wah pedal?

Unlike a traditional wah pedal that requires manual foot control, the Maxon AF-9 Auto Filter automatically responds to your playing dynamics, providing a hands-free wah effect that adapts to your picking intensity.

Can the Maxon AF-9 Auto Filter be used in a pedalboard setup?

Yes, the Maxon AF-9 Auto Filter is designed to fit seamlessly into any pedalboard setup, offering standard input and output jacks for easy integration with other pedals.

Godlyke Inc.

Godlyke Inc.

Auto Wah Pedal Demo - Maxon AF-9

Video thumbnail for Auto Wah Pedal Demo - Maxon AF-9 by Godlyke Inc.

Auto Wah Pedal Demo - Maxon AF-9

Godlyke Inc.

Godlyke Inc.

Video thumbnail for Maxon AF-9 Auto Filter Demo Auto Wah - Camilo Velandia by Camilo Velandia

Maxon AF-9 Auto Filter Demo Auto Wah - Camilo Velandia

Camilo Velandia

Camilo Velandia

Video thumbnail for Maxon AF-9 Auto Filter by Mike Hermans

Maxon AF-9 Auto Filter

Mike Hermans

Mike Hermans

Video thumbnail for OZ NOY MAXON AF-9 AUTO FILTER DEMO - GODLYKE, INC. by Godlyke Inc.

OZ NOY MAXON AF-9 AUTO FILTER DEMO - GODLYKE, INC.

Godlyke Inc.

Godlyke Inc.

Video thumbnail for Maxon AF-9 Auto Filter Demo by Godlyke Inc.

Maxon AF-9 Auto Filter Demo

Godlyke Inc.

Godlyke Inc.

Video thumbnail for Maxon AF-9 Auto Filter vs Dunlop Wah Shootout by Jim Deecken

Maxon AF-9 Auto Filter vs Dunlop Wah Shootout

Jim Deecken

Jim Deecken

Video thumbnail for Maxon AF-9 Auto Filter Jam by MatthewChapmanMusic

Maxon AF-9 Auto Filter Jam

MatthewChapmanMusic

MatthewChapmanMusic

Reviews

PROS

  • Versatile across bass and guitar, enhancing live performances

  • Adds a funky, organic sound reminiscent of Mu-Tron III

  • Capable of boosting signal while modifying EQ, resonance, and harmonics

  • Offers a slight boost and filter effect for beefier lead guitar sounds

  • Compatible with various music genres, including Heavy Metal

CONS

  • High market price due to scarcity and discontinued manufacturing

  • May produce unwanted clipping without a compressor or pickup height adjustment

  • Less effective with low-output pickups or when rolling down guitar volume

  • Sound quality described as lackluster and not truly vocal-like

Critic Reviews

Maxon AF-9 Auto Filter review | MusicRadar

musicradar.com

The Maxon AF-9 Auto Filter impresses with its intuitive design and versatile sound-shaping features. While the controls may initially appear daunting, they are thoughtfully laid out, with sliders for sensitivity and peak, and a frequency range switch that simplifies adjustments. The pedal offers high and low range options suitable for both guitar and bass, along with selectable filter types for creative tonal possibilities. However, the initial learning curve may be a challenge for some users. Overall, it's a powerful tool for musicians seeking comprehensive control over their sound.

positive

5.0 out of 5

Based on 0 Reviews and 7 Ratings

5 star
4 star
3 star
2 star
1 star

Artist usage

Add artist
See how Jim Root uses Maxon AF-9 Auto Filter

Jim Root

Guitarist

Slipknot

...
Verified via YouTube

The second pedal from the left on Jim Root's pedalboard is the Maxon AF-9 Auto Filter. This photo was taken on August 12, 2008.

See how Marty Friedman uses Maxon AF-9 Auto Filter

Marty Friedman

Guitarist

Megadeth

...
Verified via Martyfriedman

Marty lists the Maxon auto filter on his website as a piece of gear he uses. He says it gives more of a human voice quality to his leads if used sparingly. A staple of his guitar rig, Friedman also mentioned the use of AF-9 in end-of-the-year 2022 Guitar World issue.

See how Justin Meldal-Johnsen uses Maxon AF-9 Auto Filter

Justin Meldal-Johnsen

Bassist, Music Producer

Nine Inch Nails

...
Verified via Maxonfx

According to Maxon's website, Meldal-Johnsen uses the Maxon AF9 Auto Filter guitar.

See how Bryan Adams uses Maxon AF-9 Auto Filter

Bryan Adams

Singer, Guitarist

Bryan Adams's Band

...
Verified via guitarworld

Bryan Adams: Maxon Auto Wah AF-9 on a couple of songs.

See how Theo Katzman uses Maxon AF-9 Auto Filter

Theo Katzman

Singer, Guitarist

Vulfpeck

...
Verified via Photo

on pedalboard as made by Mason Marangella

See how Keith Scott uses Maxon AF-9 Auto Filter

Keith Scott

Guitarist

Bryan Adams's Band

...
Verified via YouTube

In a video interview with Roland Canada, Keith Scott, guitarist for Bryan Adams, discusses using the Maxon AF-9 Auto Filter, highlighting its role in shaping his guitar sound.

See how Oz Noy uses Maxon AF-9 Auto Filter

Oz Noy

Guitarist

...
Verified via YouTube

Oz Noy demoes the Maxon auto filter.

See how Chris Traynor uses Maxon AF-9 Auto Filter

Chris Traynor

Guitarist

Bush

...
Verified via Maxonfx

According to Maxon's website, Traynor uses the Maxon AF-9 Auto Filter pedal.

See how Matt Mondanile uses Maxon AF-9 Auto Filter

Matt Mondanile

Guitarist

Real Estate

...
Verified via Otherbandsstuff

In this picture of Matt's board at a gig, he is seen with a Maxon auto filter.

See how Chris Chaney uses Maxon AF-9 Auto Filter

Chris Chaney

Bassist

AC/DC

...
Verified via Maxonfx

According to Maxon's website, Chaney uses the Maxon AF9 Auto Filter pedal.

See how Shintaro Sakamoto uses Maxon AF-9 Auto Filter

Shintaro Sakamoto

Singer, Guitarist

Yura Yura Teikoku

...
Verified via YouTube

During Shintaro Sakamoto's live performance at Subterranean in Chicago on October 18, 2019, a Maxon AF-9 Auto Filter is visible next to a water bottle on stage. Known for incorporating this sound into his songs, it is likely part of his effects setup in this performance.

See how - M - (Matthieu Chedid) uses Maxon AF-9 Auto Filter

- M - (Matthieu Chedid)

Singer, Guitarist

...
Verified via Guitariste.com

Matthieu Chedid, known as -M-, uses the Maxon AF-9 Auto Filter as his Auto Wah pedal during live performances, as detailed in Guitariste.com's exclusive feature on his guitar gear.

Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Used With

Based on how musicians on Equipboard use Maxon AF-9 Auto Filter, it is most commonly used with the following gear.

Boss RE-20 Space Echo
Boss RE-20 Space Echo Delay Effects Pedals
2
Maxon AD80 Analog Delay
Maxon AD80 Analog Delay Delay Effects Pedals
2
Vemuram Jan Ray
Vemuram Jan Ray Overdrive Effects Pedals
1
Fulltone OCD
Fulltone OCD Overdrive Effects Pedals
1
Walrus Audio Julia
Walrus Audio Julia Chorus Effects Pedals
1
Boss VB-2W Vibrato
Boss VB-2W Vibrato Vibrato Effects Pedals
1
DigiTech WH-4 Whammy (4th Gen)
DigiTech WH-4 Whammy (4th Gen) Harmonizer & Octave Effects Pedals
1

Community setups

Show yours
S

serdar_yillar

Gear IQ 79

2 alternative and related items for Maxon AF-9 Auto Filter, curated by the Equipboard community.

More Maxon Filter Effects Pedals

Accessories & Related Items

  • Added to Equipboard on by

    gchiaren
    gchiaren

    Gear IQ 37538