The API 512v is high quality mic-preamp for the 500 series format. It can also accept line level or instrument inputs too. API are world renown for making some of the best mic-pre available. The 512v will instantly give you that API console like sound. Extremely versatile, the 512v is great to use on a range of different music styles. It offers 65dB of gain, and has exceptional low noise of -129EIN.