The Chroma is a SP-1 Spectrum, a one band parametric EQ. The frequency knob sets the boosted frequency between 500Hz and 5 kHz, and the balance (or mix) knob adjusts the dry-to-wet signal ratio. The gain and Q (frequency width) are fixed. It only boosts frequencies, it does no cuts.
Please notice the instruction document, for this project a dual pot has to be modified!
This kit contains the PCB and all necessary parts. The enclosure can be selected, please select 2 knobs for 6,3mm shaft separately.
Here is the bill of material: bill of material
This project is by Aion Electronics, in collaboration with Musikding. If you have any problems with the contents of the kit, please contact Das Musikding (Klaus). Since the modifications require some basic knowledge, this project is rather for more experienced builders.
Here is the direct link to the manual with layout and schematic:
Here you can find build reports on this project: Build Reports