I will design audio electronics circuits schematics, and printed circuit boards

You describe your needs to me. I develop an electronic solution and give you a project ready to manufacture or to continue developing. This applies to any type of audio circuits. Examples: preamplifiers, amplifiers, compressors, equalizers, crossovers, interfaces, connector boards, phantom power supplies, multiplexers, balanced inputs and outputs, instrumentation amplifiers, onboard preamps (for active instruments), signal generators, oscillators, voltage controlled amplifiers , power supplies, etc. Tube, transistorized or integrated circuits.