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MPQ568C | Studio Grade Mic Preamp with Germanium EQ, DI and 2 Colour Slots

Professional / Studio Grade Mic Preamp

Class A Classic EQ with NOS Germanium Transistors

2 Settings per Band: 6kHz/10kHz | 80Hz/160Hz

VERUM’70 Studio Grade Reference Mic Preamp

Suitable for Processing The Line Level Signals

Discrete Balanced High Performance Mic Input Stage

Ultra Low Noise EIN=-128dBu @ 65dB of Gain

Ultra Low Distortions 0.08% @ 65dB of Gain

Discrete Class A High Impedance Instrument Input

2 Slots for DIYRE Colour Modules

Flexible Colours Routing Matrix

Compatible with DIYRE Colour Format

Limited Number of Preamps Available!

Order MPQ568C – Assembled

SAVE up to 89USD on FREE Colour Module!

Brand new, fully assembled, tested and ready to use.
Shipping From $9.99!
Dispatched within 3-5 working days.

399USD 329USD

Select Your First FREE Colour :
Select Your Second Colour :
Select 500 Extension Lead :

Only 9 Left!

Order MPQ568C – DIY KIT

SAVE up to 59USD on FREE Colour Module!

Brand new, fully assembled, tested and ready to use.
Shipping From $9.99!
Dispatched within 3-5 working days.

299USD 229USD

Select Your First FREE Colour DIY KIT :
Select Your Second Colour DIY KIT :
Select 500 Extension Lead :

Only 10 Left!

MPQ568C Special Offer!!!

Get MPQ568C Colour Bundle and SAVE More Money!

Select Colour Bundle Option with ANY 2 Colour Modules from Bart HRK Offer!

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MPQ568C | Studio Mic Preamp with Classic Germanium EQ

The MPQ568C is a Studio Grade low noise Microphone Preamplifier with 2 Bands Class A Discrete Germanium EQ.

The MPQ568C uses newly design VERUM’70 Discrete Input Preamplifier circuitry, providing ultra low noise and no-compromise THD performance.

The use of the Discrete Transistors input stage ensures the Ultra Low Noise performance of EIN=-128dBu at gain of +65dB.

The Germanium shelf EQ is very musical and easy to use. Each band has 2 frequencies settings which means that MPQ568C will cope with almost any recording task.

Discrete Direct Input is suitable for wide range of instruments such as acoustic guitar, electric guitar, bass guitar, synths and any other signal source.

The MPQ568C Active High Impedance Direct Input is ideal for acoustic instruments like Double-bass, usually equipped with piezo pickups. No more thin sound! Low end will be reproduced down to lowest note!

The input stage will easily handle high level input signals. Thanks to this MPQ568C can be used to process line level signal with Colour Modules without the input PAD.

The logarithmic Gain control allows to accurately set the signal level feed to Colours or to record from the microphone with selected Colour Module.

The MPQ568C is a perfect solution for recording and post-processing.

Suitable for Processing The Line Level Signals

The MPQ568C can easily handle the Line Level Signals!

Simply reduce the level from the source such as DAW Interface by -12dB or more and use the Mic Input as the Line Input.

The PAD function in any Mic Preamp is a simple resistor divider which will increase the noise flor level.

It was used in old recording equipment due to the lack of better technical solution.

In modern studio almost any interface has the output level knob which can be used to reduce the output level. Same can be done in any sound editing software.

Guitar and Vocal Recorded with MPQ568C

      HQ Audio Track from the Video

Listen to HQ MPQ568C Sound Samples

      MPQ568C HQ Female Vocal Sample

      MPQ568C HQ Guitar Sample

MPQ568C EQ Settings:
10kHz: +3dB
160Hz: +2dB
Microphone: Rode NT2-A

No additional Colour Mudule installed.

DOPA68 | Discrete Germanium Opamps

The MPQ568C EQ section is based on DOPA68 Discrete Class A Opamps. Each Opamp consist selected NOS Germanium transistor.

The DOPA68 Discrete Opamp is a result of long design process followed by numerous listening tests and measurements in order to achieve pleasing sound and low distortions level.

The sound produces by DOPA68 Germanium Opamps is very smooth with the addition of high frequency shine.

Original Germanium transistors are very rare and can be found only in very expensive preamps.

I was lucky to secure the stock of old NOS Germanium transistors from Eastern Germany but one day they all will be gone.

Flexible EQ / Colour Modules Routing Matrix

The unique feature of the MPQ568C is the Flexible EQ Routing Matrix around the Colour Modules. The EQ can be routed pre or post the second Colour Module.

This means more possible options to create different sonic results!

You can use the Overdrive Colour with your electric guitar, change the tone with the EQ and achieve combo like effect with the Cabinet Simulator Colour Module. Only the first Colour will be effected with the EQ while second Colour will be inserted after the EQ.

Other option is to change the routing so the EQ will effect both Colour Modules connected in series.

2 Colour Slots | 2 Times More Creativity!

The MPQ568C has 2 slots for Colour Modules.

Perfect solution for recording vocals and instruments. Two slots can hold different Colour Modules which could be used to record different source without a need of replacing the colour for each take.

Both Colour Modules have separate Bypass switches providing hassle-free operation.

MPQ568 can also be very useful for mastering and post-processing. Ability to have 2 Colour Modules gives more flexibility and discrete Germanium EQ will add necessary final touch to the track or mix.

Each Colour Module has associated HUE LED providing easy identification of active Colour Modules.

Unique EQ Bypass Feature | More Flexibility!

The EQ of the MPQ568C is made of 2 independent discrete transistors circuits for Top and Low shelf section.

Each band has a switch which allows to select between 2 frequencies. The middle position of the switch will disable the EQ functionality for individual band but it will not bypass the EQ.

Such solution gives more flexibility! For example, only the Top band can be disengaged while Lows can be still boosted or cut.

Even if both bands are disengaged the signal always pass through the Discrete Opamps adding Germanium vibe to the signal.

SAVE in Bundle | Special Offer!

The MPQ568C has 2 slots for Colour Modules.

It means that you can use two Colour Modules for recording or tracking.

Both Colour Modules have separate Bypass switches and HUE LED providing hassle-free operation.

British Console delivers the sound of the Vintage British Mic Preamp in the compact and affordable Colour Module Format!

The British Console Colour Module circuitry relates to the heritage of the famous British mic preamp designed and launched in 70’s.

The British Console Colour Module adds subtle saturation and compression to the signal in all modes of operation. In normal conditions British Console produces less than 0.3% of THD – mostly second harmonics.

Insert the British Console Colour Module and Transform the MPQ568C in to the Classic British Channel Strip!

Additional Information

Note: All measurements done with Audio Precision system. THD performance may vary between units. Use of different 500 rack may have impact on the THD performance.
It is recommended to use 500 racks only from well regarded manufacturers approved by API and equipped with linear power supply. Low quality 500 rack with switched mode power supply may worsen the THD + Noise performance.
Microphone Input Spec

Noise Performance:

Gain 12dB: -89dBu – noise floor
Gain 30dB: -84dBu – noise floor
Gain 65dB: EIN -128dBu

THD + Noise:

Gain 12dB: -0.2dB@10Hz / -0.2dB@20kHz / -2dB@61kHz
Gain 30dB: -0.2dB@10Hz / -0.3dB@20kHz / -2dB@60kHz
Gain 65dB: -0.3dB@10Hz / -0.3dB@20kHz / -2dB@59kHz

Instrument Input Spec

Noise Performance:

Gain 12dB: -87dBu – noise floor
Gain 30dB: -81dBu – noise floor
Gain 65dB: EIN -126dBu

THD + Noise:

Gain 12dB: -0.2dB@10Hz / -0.2dB@20kHz / -2dB@61kHz
Gain 30dB: -0.3dB@10Hz / -0.3dB@20kHz / -2dB@59kHz
Gain 65dB: -0.3dB@10Hz / -0.6dB@20kHz / -2dB@40kHz

User Manual

Download the User Manual:

MPQ568C User Manual rev 1.6

DIY KIT Assembly Documents
Power Consumption

Lest than 40mA – no Colour Module

Compatible with any 500 rack.

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