I am selling an API 512c microphone preamplifier from the API 500 series! I recently purchased it used. I really liked it as my first API, so I am selling it to secure funds for a higher-end model! It works well and is in working condition. The previous owner said it had been used only a few times, and I think it can be said to be in beautiful condition overall. I will pack and ship it in its original box.