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British EQ Colour Module | Classic Active 2 Band Discrete Transistor EQ from 70’s

Professional / Studio Grade Colour Module

Inspired by British Discrete EQ Design from 70’s

Fully Functional 2 Band Active Equalizer

Musical LF Shelf and HF Shelf EQ Curves

12dB of Boost or Cut per Band

2 Selectable Frequencies per Band

2 Independent Discrete Opamps with NOS Transistors

Each Band Circuitry with Seperate Opamp

Opamp Design Optimised for Rich Harmonics

Linear Cut / Boost Controlls

Exact 0dB in the Trimmer Middle Position

On-Board Voltage Regulators and PSU Filters

Easy to Build for Beginners

DIY KIT / Fully Assembled Module

Direct Sale - Best Price!

Limited Number of Modules Available!

Multibuy Special Offer!

Buy 2 – Get -5% Discount!

Buy 4 – Get -10% Discount!

From 59USD

SAVE Extra $$$ with Bundle Offer!

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Shipping to UK, EU, Canada, Australia, USA from $9.99!
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Upscale Your Tone with Classic British EQ!

The British EQ Colour Modules is the 2 Band Classic Active Equalizer with NOS Discrete Opamp Circuitry inspired by Famous UK design from 70’s.

Each Band is made with an individual Discrete Circuitry and provides shelf EQ curve.

Separate Opmaps for LF and HF ensures that Bands won’t have the influence on each other.

The Discrete Circuitry was optimized to produce Rich Second Harmonic content. 

Any track or music will benefit from enhancing capabilities of British EQ.

British EQ is the easiest way to make your tracks to sound Expensive and Prestigious!

Get Professional Results Easily!

The British EQ Colour Modules is an active 2 Band EQ with easy to use Linear Controls.

In the middle position of the Trimmer the response is flat. Just like in the full size EQ.

Each Band has the +/-12dB of the Boost/Cut range. This is more than enough for any application.

In addition each Band has 2 frequencies settings. The LF: 70Hz/160Hz and the HF: 8kHz/12kHz

Frequencies can be selected with the jumpers.

Designed for Professional Use!

The British EQ Colour Module was designed specifically for professional studio use.

The circuitry was optimized for low noise performance. On-board voltage regulators stabilize supply rails and filter-out any power supply noise.

This is very important since many 500 racks are equipped with Switch Mode Power Supply which may produce the switcher noise.

The British EQ Colour Module can be used for recording and for mastering tracks or finished mixdown.

Listen to HD Audio Samples

      Acoustic Guitar Dry

      Acoustic Guitar Less EQ

      Acoustic Guitar More EQ

      Bass Dry

      Bass Guitar Less EQ

      Bass Guitar More EQ

      Beat Dry

      Beat Less EQ

      Beat More EQ

Applies to All Samples:
Less EQ: LF Trimmer = +20% | HF Trimmer = +20%
More EQ: LF Trimmer = +50% | HF Trimmer = +50%
Frequency Selection: LF:70Hz | HF:12kHz

      Electric Guitar Dry

      Electric Guitar Less EQ

      Electric Guitar More EQ

      Synth Dry

      Synth Guitar Less EQ

      Synth Guitar More EQ

      Reference Sample
      LF: 160Hz | HF: 12kHz
      LF: 70Hz | HF: 8kHz

Britsh Console with Classic British EQ

British EQ and British Console Colour Modules create a perfect match!

Both modules are inspired by the Famous British Console circuitry from 70’s.

Both modules use the NOS Discrete Transistors from 60’s and 70’s.

Get the Bundle with MP568C in Special Offer Deal!

Own Your Classic British Channel Strip for the fraction of the Price!

Learn More about the Bundle Offer…


Input Impedance: 10k

Phase Reverse: Non

Gain: 0dB – All trimmers set to 0dB boost/cut

Bands: 2

Frequencies: LF: 70/160Hz, HF: 8k/12kHz

Boost/Cut: +/- 12dB

Power Consumption: 10mA

DIY KIT Documents

UK, EU, Canada, Australia, USA from $9.99!

FREE Express Shipping on Orders Over $399

Dispatched within 3-5 working days.

Delivery time may vary and depends on destination.

USA orders bellow 800USD are free from custom fee.

About Bart HRK

About Bart HRK

Analogue Design Engineer

Bart Hrk is an Analogue Design Engineer with extensive knowledge in designing analogue studio recording equipment based on discrete transistors and thermionic valves.

He is the IPC-CID (Certified Interconnect Designer) since 2014. He gained his skills during many years of designing the professional audio products as the freelancer and while working for some of the well-known companies in the pro-audio industry.

During that time he amassed his professional experience in developing projects from the product specification initial concept, through the prototyping stage towards manufacturing and mass production.

His overall know-how includes designing bespoke analogue audio circuitry, audio transformers, PCB layout development, hardware development and prototyping, project leading and management.

Professional Career History

FOCUSRITE Audio Engineering LTD – High Wycombe, Bucks
October 2010 – July 2013
Design Engineer | R&D
Projects: ISA2 Microphone Preamplifier, RED1 500 Microphone Preamplifier

AMS-NEVE LTD – Burnley, Lancashire
May 2009 – September 2010
Analogue Design Engineer | R&D
Projects: 1073LB Microphone Preamplifier, 2264 Compressor