The Sapphire Amp Overdrive is based on the Blues Driver, one of the most popular pedals.The Blues Driver starts with a circuit very similar to the OD-2, and then adds a slight bass boost to the end to give it the signature fullness, along with some clipping diodes and a fixed-position tonestack for shaping the tone.
This kit contains the PCB and all necessary parts. The enclosure can be selected, please select 4 knobs, up to 19mm diameter, 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: