Photo of DOD FX40B Equalizer and more gear in a pedalboard

Photo of DOD FX40B Equalizer and more gear

DOD FX40B Equalizer

^# 26

Equipboard's ranking is determined by analyzing factors such as professional artist usage, popularity, user ratings, reviews, and more.

4.5 (16)

3 Reviews

This product is Vintage or Discontinued

Find out who is using DOD FX40B

4 community setups

9 wishlisted

41 saved

Page last updated Jun 16, 2026

Pricing and availability

Store

Reviews

Price

Average Price: $74

Standard/Professional

$50

$176+

Price Tier

In the Equalizer Effects Pedals category, DOD FX40B Equalizer is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

Budget

Standard

High-end

^* 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

Edit description

Unleash the full potential of your guitar's sound with the DOD FX40B Equalizer. This versatile pedal offers seven bands of EQ, each providing 12 dB of boost or cut, giving you precise control over every octave of your instrument’s tone. Whether you're looking to sculpt the perfect sound or eliminate pesky feedback, the FX40B is your go-to tool for achieving professional-grade audio output.

Designed with both amateurs and seasoned musicians in mind, the FX40B's intuitive slide pots make adjustments straightforward and responsive, ensuring you spend more time playing and less time tweaking. Its robust construction promises durability, making it a reliable companion for both studio sessions and live performances. Whether you're striving for clarity in a complex mix or aiming to highlight certain frequencies for a unique sonic footprint, this equalizer pedal adapts effortlessly to your creative demands.

With the DOD FX40B Equalizer, every note and chord you play resonates with the precision and quality you desire. This pedal doesn’t just modify your sound; it enhances it, allowing your musical expression to shine through like never before.

Key Features:

Seven-band EQ for comprehensive tonal control
12 dB boost or cut for each band
Slide pots for easy and precise adjustments
Durable construction for long-lasting performance
Ideal for tone shaping and feedback elimination

Product specs

Brand	DOD
Model	Equalizer FX40B
Finish	Grey
Year	1995
Made In	United States
Categories	EQ Pedals, Filter and Wah Pedals

FAQs

What is the primary function of the DOD FX40B Equalizer pedal?: The DOD FX40B Equalizer is designed to shape and adjust the tonal characteristics of your guitar signal through a series of frequency bands, allowing for precise control over your sound.
How many frequency bands does the DOD FX40B Equalizer offer?: The DOD FX40B Equalizer features seven frequency bands, providing a wide range of tonal adjustments to enhance or modify your guitar's sound.
Is the DOD FX40B Equalizer pedal suitable for live performances?: Yes, the DOD FX40B Equalizer is suitable for live performances, offering robust tone-shaping capabilities that can help you achieve the desired sound in various venues and settings.
Does the DOD FX40B Equalizer require a specific power supply?: The DOD FX40B Equalizer can be powered by a 9V battery or a compatible 9V DC power adapter, making it flexible for different setups.
Can the DOD FX40B Equalizer be used with bass guitars?: Yes, the DOD FX40B Equalizer can be used with bass guitars, allowing for enhanced control over the lower frequency range to better shape your bass tone.

Videos

Add video

Diederich Electronics

DOD FX 40B Equalizer Graphic EQ Guitar Pedal

Diederich Electronics

DOD FX40B EQ USA

占咪心Playsmusic

DOD FX 40B 8 Band Equalizer Review

Mic Sustianevo

Reviews

Add review

PROS

Can add mids for a more Tele-like sound effectively
Offers more gain and cut compared to competitors
Versatile usage: overdriving/boosting amps and pedals
7 bandwiths allow for wide tone adjustability
Has a quieter response than some competitors
Does not require an 18V supply unlike some EQ pedals
Favored by notable musicians like Tom Morello
Affordable alternative to similar products

CONS

Discontinued, may require effort to find
Some units can be noisy with high noise floor
Requires an adapter for power supply
Quality of the switch may be questionable

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about DOD FX40B Equalizer.

Comparisons

0 0

The DOD FX40B offers +18dB boost compared to the Boss GE-7's +15dB, beneficial for achieving precise tonal adjustments.
Source
0 0

Some users chose the GE-7 over the FX40B due to its smaller size, indicating that portability can be a deciding factor for some buyers.
Source

Use cases and applications

0 0

Owners find the additional +3dB boost over the GE-7 crucial for perfecting tone, particularly when fine-tuning for specific musical styles or performances.
Source

User experience

0 0

Users appreciate the DOD FX40B’s reliability, with some integrating it permanently into their pedalboards due to its consistent performance.
Source
0 0

One owner reported using the DOD FX40B with headphones before an ACS1 and noted no noise issues, highlighting its clean performance in certain setups.
Source

Build quality

0 0

The aftermarket battery door for the DOD FX40B is often problematic, with reports of it being too small and not staying closed, likely due to poor 3D printing.
Source

Value and pricing

0 0

A user acquired the DOD FX40B for $80 through Craigslist, emphasizing the potential for finding deals on this pedal in the used market.
Source

Add review

4.5 out of 5

Based on 3 Reviews and 16 Ratings

5 star

4 star

3 star

2 star

1 star

jimmarchi1

41010

over 7 years ago

a GE7 by another name

very similar to the boss GE7 in all its shitty glory but with a few extra dB of cut/boost... if you can tolerate the junk switch, look at one of these over the boss because it'll be a helluva lot cheaper. This was the first EQ I owned in the 90s and I really didn't know what I was doing with it, but it didn't matter because its a worthless pedal. Noise floor is way too high making the extra gain on the bands worthless due to the hiss.

Roles:

Guitarist Bassist Keyboardist

Genres:

Electronic Orchestra Alternative rock

luxiu

44626

over 11 years ago

Best option out there for modeling tone and overall cut/boost of the signal for a few bucks

This oldie offers a range of cut/boost of 18 dB –Boss GE-7 offers just 15, and MXR Ten Band EQ offers just 12. The 15 dB range is enough (or even more than that!) for most of us, but then this unit got its advantage not by this quantifiable fact but for a matter of quality by offering a very quiet response that puts the usual –and usually more expensive– "let's grab the Boss one 'cos I know that brand" choice into shame while doesn't even need an awkward 18V supply like the MXR 10 Band EQ to achieve it.

Roles:

Guitarist

Genres:

Rock