Skip to content
  • ORDER PCBS DIRECTLY FROM FACTORY: EAGLE GERBER PACK
  • CONTACT US
  • Check out our pre-built SMD BOARDs HERE
PCB Guitar ManiaPCB Guitar Mania
  • Shop
  • Custom PCBs designs
  • Login / Register
  • Cart / €0.00 0
    • No products in the cart.

  • 0

    Cart

    No products in the cart.

Utilities
Filter

Active EQ

€7.90

Inspired by Freeman BE-OD and the Dirty Shirley EQ section

 

 

Coming Soon

Join the waitlist to be emailed when this product becomes available

Categories
  • Australia
  • Bass
  • Beginner Projects
  • Boost
  • Chorus & Vibrato
  • Compressor
  • Delay
  • Distortion
  • DIY Originals
  • EQ & Cabsim
  • Filter
    • Envelope Filer
  • Flanger
  • Fuzz
    • Fuzz Face type
    • Fuzzes of Doom
    • Germanium Fuzzes
    • Muff type
    • Synth & Bitcrusher Fuzzes
    • Tone Bender Type
    • Unique Fuzzes
  • FV-1
  • Noise gate
  • Octave & Pitch
  • Overdrives
    • High Gain
    • Pre-amp Overdrive
    • Transparent Overdrive
    • TS-808 Type
    • Unique Overdrives
  • Packs
  • Phaser
  • Pre-amp
  • Reverb
  • Ring modulator
  • Sale
  • SMD
  • Soviet
  • Tremolo
  • Tube related
  • Uncategorized
  • Utilities
  • Description
  • Reviews (0)

Project overview

Based on the Friedman BE-OD and the Dirty Shirley EQ section. We consider this EQ the best fit for Preamp emulator projects and high gain pedals.

Introduction

Includes an internal Presence control, followed by a Character trimpot that regulates how a set of LEDs compress the signal. Then we jump into a passive treble control, followed by an Active Bass section. Now’s when you have to choose if you want to have a volume control of the overall circuit inserted here from your main PCB board (Tube screamer, Plexi, etc) or to place just an internal trimmer as an additional control. After this volume section, it comes the active mids control.

One of the characteristic that makes this board the best solution for preamps and high output circuits it’s the Power output option, this works the best for those high output preamps to go and feed directly into a power amp, and the regular output will be tamed into a more pedal-friendly volume. If you are using this board with a pedal that’s not famous for its big output (Klon centaur for example) you should use the power output.

Controls

  • Bass
  • Mids
  • Treble

 

For further analysis on Dirty Shirley´s circuit take a look at this thread on Free Stomp Boxes Forum.

For any technical questions regarding this build, don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.

EQ Development tool – Building Docs

Active EQ – Drilling template

 

Reviews

There are no reviews yet.

Be the first to review “Active EQ” Cancel reply

Related products

AUSTRALIA
No-Noise Gate SMD - Australia

Australia

No-Noise Gate SMD – Australia

€17.90

Inspired by MXR Noise Gate

Cabulator - Cabinet Simulator

EQ & Cabsim

Cabulator – Cabinet Simulator

€9.90

Inspired by DSM Omnicab Sim

AUSTRALIA
Mids Obsession - Australia

Australia

Mids Obsession – Australia

€8.90

Inspired by JHS Haunting Mids  

Coming Soon
Double Buffer Board
Out of stock

Utilities

Double Buffer Board

€3.90

Standard JFET input buffer and Standard NPN Output buffer

Coming Soon
Order Switch PCB
Out of stock

Utilities

Order Switch PCB

€1.00

Flip order of two effects in a box.

SMD
Coming Soon
Active EQ SMD
Out of stock

EQ & Cabsim

Active EQ SMD

€17.90

Inspired by Friedman BE-OD    

AUSTRALIA
Cabulator - Cabinet Simulator - Australia

Australia

Cabulator – Cabinet Simulator – Australia

€9.90

Inspired by DSM Omnicab Sim

AUSTRALIA
No-Noise Gate - Australia

Australia

No-Noise Gate – Australia

€7.90

Inspired by MXR Noise Gate

Latest
  • Black Mirror VII - America Black Mirror VII - America €14.90
  • Death by Fuzz IV - America Death by Fuzz IV - America €9.90
  • Cosmos Delay - America Cosmos Delay - America €14.90
  • Echo Nightmare - America Echo Nightmare - America €11.90
Best Selling
  • AUX 3PDT pack of 5 AUX 3PDT pack of 5
    Rated 5.00 out of 5
    €3.90
  • EZ 3PDT pack of 5 EZ 3PDT pack of 5 €3.90
  • Kloned Centaur Kloned Centaur
    Rated 5.00 out of 5
    €9.90
  • The Knight of Tone The Knight of Tone €11.90
Featured
  • Warped Plexi Deluxe Warped Plexi Deluxe €11.90
  • Death by Earthquake Pack I Death by Earthquake Pack I €177.40 Original price was: €177.40.€115.31Current price is: €115.31.
  • Death by Earthquake Pack II Death by Earthquake Pack II €176.40 Original price was: €176.40.€114.66Current price is: €114.66.
  • Warped Plexi Warped Plexi
    Rated 5.00 out of 5
    €9.90
Top Rated
  • Ra's Pharaoh Ra's Pharaoh
    Rated 5.00 out of 5
    €8.90
  • Dirty Freeman Dirty Freeman
    Rated 5.00 out of 5
    €9.90
  • Warped Delight Warped Delight
    Rated 5.00 out of 5
    €9.90
PCB guitar mania

Shop

Custom PCB design

Resources

Contact

My account

My account

Track my order

Lost password

Join builders community

About us

We know that every single person can make their own amazing boutique pedal effects.

Are you ready to build your own tone?

All trademarks and brands are the property of their respective owners. Any usage of trademarks on this website is for comparative purposes only. Use of these names, logos, and brands does not imply affliaton nor endorsement.
Terms | Privacy | Copyright 2025 © PCB Guitar Mania
Cleantalk Pixel
  • Shop
  • Custom PCBs designs
  • Login
  • Check out our pre-built SMD BOARDs HERE
  • !LAST 24 HOURS: 20 % OFF with coupon "PEDALFATHER20"

Login

Lost your password?

Register