I purchased this kit not too long ago but I have decided not to assemble and use it. I have acquired a different passive pre that I am using and quite satisfied with. The kit includes the matched LDRs, capacitors, resistors, and circuit board. The only pieces you need to supply is a 5volt power supply and a dual 100k log potentiometer. I will email the assembly manual as well. I am asking $50 shipped in the USA. I will ship internationally but will have to determine shipping costs. Please send a PM if interested.