The No.1 Website for Pro Audio
C572 | Parallel Saturation Colour Processor with Smart EQ - Bart HRK
Old 4 weeks ago
Gear Head
Bart_UK's Avatar

C572 | Parallel Saturation Colour Processor with Smart EQ - Bart HRK

C572 | Mono Parallel Saturation Colour Processor with Smart EQ

  • Parallel / Serial Operation with Blend Knobs
  • 2 Band EQ with 2 Frequency Settings
  • 3 Colour Modules Slots
  • 1:1 Ratio Gain/Trim Colour Drive Circuit
  • +20dB Colour Drive Gain Range
  • Bypass Switch for Each Colour Modules
  • Blend DRY/WET Feature for 2 Colour Modules
  • Parallel Mode for 2 Colour Modules
  • High-Quality ALPS Potentiometers
  • Studio-Grade Texas Instruments Opamps
  • Balanced Input
  • Balanced Output
  • Compatible with DIYRE Colour Format

The C572 is a Mono Parallel Colour Processor with three Colour Module slots, designed to process the sound with the use of Colour Modules by saturating and adding subtle harmonics to the signal, similar to the harmonics added by the vintage studio equipment.

Each Saturation Colour Module stage has Drive/Trim circuit with 1:1 Ratio potentiometer. As a result, the module Drive Insensitivity increases while the output level remains the same.

Colour Module 1 and Colour Module 2 have the MIX knob which provides the Blend function between the DRY and the WET signal.

The Blending is linear and in the middle position, the DRY/WET signal ratio is 50/50.

The third Colour Slot has only the Drive/Trim knob. It is placed as a series stage in the signal path, after the colour 1 and colour 2 which can be blended in parallel.

For more information please refer to the signal flow diagram.

Each Colour Module stage has the Bypass Switch which allows the easy A/B operation.

Smart EQ Feature

The C572 Smart EQ is an innovative shelf 2 Band EQ which allows to boost or cut the LF and HF simultaneously using only one knob.

When bosted, the Smart EQ will produce the smile curve, enhancing the harmonics produced by the colour modules. The smile curve is the most common way to improve the tone of any signal.

The Smart EQ circuit is built with independent LF and HF section eleminating the risk of any unwanted interactions between the bands.

The Smart EQ is musical and easy to use. It can boost or cut up to +/-8dB providing ideal resolution in applying the EQ effect.

The Smart EQ has two frequency setting for each band. The frequency can be selected with onboard jumpers.

LF: 80Hz/160Hz, HF: 6kHz/10kHz

Blending and Parallel Summing

The C572 has a unique configuration of two parallel independent colour signal paths.

Colour Module 1 and 2 have independent Drive/Trim knob which sets the level of saturation and the MIX knob which blends between the DRY and WET signal.

Such configuration allows to set very accurately the amount of harmonics.

Signals from Colour 1 and Colour 2 mixed in the onboard summing circuit and passed to third Colour Module.

More Info:
Attached Thumbnails
C572 | Parallel Saturation Colour Processor with Smart EQ - Bart HRK-c572-parallel-colour-saturation-processor-bart-hrk-11.jpg   C572 | Parallel Saturation Colour Processor with Smart EQ - Bart HRK-c572-parallel-colour-processor-bart-hrk.jpg   C572 | Parallel Saturation Colour Processor with Smart EQ - Bart HRK-c572-signal-flow-diagram.jpg   C572 | Parallel Saturation Colour Processor with Smart EQ - Bart HRK-air-ex.jpg   C572 | Parallel Saturation Colour Processor with Smart EQ - Bart HRK-lf-max.jpg  

C572 | Parallel Saturation Colour Processor with Smart EQ - Bart HRK-drive-trim-circuit.jpg  

Last edited by Bart_UK; 4 weeks ago at 01:16 PM..
Old 4 weeks ago
Lives for gear
Will The Weirdo's Avatar
Nice new card!
Old 4 weeks ago
well done!!!
Old 3 weeks ago
Lives for gear
vicenzajay's Avatar
I'm super excited for this offering. The parallel processing for the first two colour modules is a killer (new) idea, and the smart eq seems like a nice "tweaking" add-on to the overall processing to help the processed signal sit nicely in the mix.

What I think will be killer (for the colour modules) is the idea of adding low or high harmonics as a blend with the original signal in "solo" mode. I.E., what Bart has done here will allow a really nice way to add "just" the harmonics wanted to accentuate a signal on a separate track (with the appropriate freedom to tweak level/etc. of that separate track). It is also nice to see the "trios" completed - we now have the British Driver to complement the British EQ and British Console, and we have the SS Console to complement the EQ SI card and the Discrete Line Driver. Flavors of Neve and SSL covered for when those sonic signatures are wanted.

That Bart can do these at those prices (and at his level of componentry/skill in sourcing/design/execution) is cool.
Post Reply

Welcome to the Gearslutz Pro Audio Community!

Registration benefits include:
  • The ability to reply to and create new discussions
  • Access to members-only giveaways & competitions
  • Interact with VIP industry experts in our guest Q&As
  • Access to members-only sub forum discussions
  • Access to members-only Chat Room
  • Get INSTANT ACCESS to the world's best private pro audio Classifieds for only USD $20/year
  • Promote your eBay auctions and listings for free
  • Remove this message!
You need an account to post a reply. Create a username and password below and an account will be created and your post entered.

Slide to join now Processing…
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Forum Jump
Forum Jump