Pricing and availability

We compare 600+ stores and found this item at 6 stores. Prices updated .

Sweetwater
5.0 (55)
$199.99
Guitar Center
4.5 (20)
$199.99
Amazon
4.6 (185)
$199.99 New
$144.99 Used (Like New)
Reverb
5.0 (53)
$149.51 New
$99.00 Used
Musician's Friend
5.0 (18)
$199.99
Thomann
4.8 (191)
$225.00 $222.00 $3.00 · All time low

Average Price: $182

Standard/Professional

$75

$251+

Price Tier

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Standard

High-end

Price History

Based on price data from 5 merchants for "Custom Audio Electronics MC404". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Crafted for the discerning guitarist, the Custom Audio Electronics MC404 Wah Pedal offers a versatile sonic palette that caters to every wah enthusiast's needs. This pedal, a collaborative creation with Bob Bradshaw of CAE, is not just a piece of equipment—it's an experience. At the heart of the MC404 are its dual Fasel inductors, which provide distinctive high-end and low-mid frequency options for a rich and dynamic wah expression. Whether you're looking to evoke the classic wah sounds of yesteryears or carve out a new sonic territory, this pedal delivers with precision and style.

Embrace the power of customization thanks to the internal Q and gain trim pots, allowing you to tailor your tone to perfection. And when the moment calls for a little extra punch, the integrated Boost/Line Driver steps in to elevate your sound with ease. This thoughtful design ensures that whether you're on stage or in the studio, the MC404 is your reliable partner in crafting unique soundscapes.

Key Features:

  • Dual Fasel inductors for diverse tonal options
  • Internal Q and gain trim pots for personalized sound shaping
  • Built-in Boost/Line Driver for enhanced signal strength
  • Designed in collaboration with Bob Bradshaw of Custom Audio Electronics
  • Durable construction for consistent performance

Product specs

Brand Dunlop
Model MC404 CAE Custom Audio Electronics Wah
Finish Black
Year 2010 - 2025
Made In United States
Categories Filter and Wah Pedals
Pedal Format Standard

FAQs

What tones can I expect from the Custom Audio Electronics MC404 Wah pedal?

The MC404 offers two distinct tones by allowing you to select between a Yellow or Red Fasel Inductor. The Yellow inductor provides a warmer, more vintage sound, while the Red inductor delivers a more pronounced, aggressive tone.

Does the Dunlop MC404 Wah have a true bypass?

Yes, the Dunlop MC404 features true bypass, ensuring that your guitar's tone remains unaffected when the pedal is not in use.

How does the gain output stage work on the MC404 Wah pedal?

The MC404 includes a user-selectable gain output stage, which can be activated with a kick switch. This allows you to boost your signal for solos or to cut through the mix, with an LED indicator showing when the boost is engaged.

What power options are available for the Dunlop MC404 Wah pedal?

The MC404 can be powered using a 9-volt battery, an ECB-003 power adapter, or a Dunlop DC Brick multi-power supply 9-volt output.

Are there any visual indicators on the MC404 Wah pedal?

Yes, the MC404 features bright LEDs that indicate the effect status, inductor mode, and whether the boost is on or off, providing clear visual feedback during use.

ProGuitarShopDemos

ProGuitarShopDemos

Custom Audio Electronics CAE MC-404 Wah

Video thumbnail for Custom Audio Electronics CAE MC-404 Wah by ProGuitarShopDemos

Custom Audio Electronics CAE MC-404 Wah

ProGuitarShopDemos

ProGuitarShopDemos

Video thumbnail for MC404 CAE Wah by jimdunlopusa

MC404 CAE Wah

jimdunlopusa

jimdunlopusa

Video thumbnail for Custom Audio Electronics MC-404 Wah pedal: Clean, dirty and with MKI by Brett Kingman

Custom Audio Electronics MC-404 Wah pedal: Clean, dirty and with MKI

Brett Kingman

Brett Kingman

Video thumbnail for Dunlop MC-404 CAE Wah Pedal Review by Sweetwater Sound by Sweetwater

Dunlop MC-404 CAE Wah Pedal Review by Sweetwater Sound

Sweetwater

Sweetwater

Video thumbnail for Custom Audio Electronics CAE MC-404 | Wah Wah Pedal (Complete Test) John Mayer Signature Strat 🎸 by Alberto Martinez Del Rio Guitar

Custom Audio Electronics CAE MC-404 | Wah Wah Pedal (Complete Test) John Mayer Signature Strat 🎸

Alberto Martinez Del Rio Guitar

Alberto Martinez Del Rio Guitar

Video thumbnail for MC404 by Easy Music Center

MC404

Easy Music Center

Easy Music Center

Reviews

PROS

  • Dual Fasel inductors provide versatile and distinct tonal options

  • Adjustable Q pots allow precise sound customization

  • Produces vivid, wicked wah tones ideal for modern and classic rock

  • No tone suck; boost feature enhances volume effectively

  • Boutique quality with a household brand reputation

  • Excellent balance in volume and sound clarity

  • Comes ready to use with no need for immediate adjustments

  • Allows for subtle to screaming wah effects as desired

CONS

  • Boost feature only works when wah is engaged

  • Some users desire a more gradual sweep in mid to high frequencies

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Custom Audio Electronics MC404.

Setup and maintenance

  • Running the MC404 on battery power resolves feedback issues, indicating potential power supply sensitivity.

    Source

Features and functionality

  • The MC404's deep power jacks make it incompatible with some power supplies, like the 1Spot.

    Source

Software and compatibility

  • The MC404 wah pedal causes howling feedback when used with high-gain setups, like the Tall Font Russian muff or The Elements.

    Source

4.5 out of 5

Based on 0 Reviews and 2 Ratings

5 star
4 star
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2 star
1 star

Genre Usage

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

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