The 512v offers 65 dB of gain as a mic preamp, 45 dB of gain as a line/instrument preamp, and a 20 dB pad switch that can be applied to the incoming signal (whether mic, line or instrument). The 512v also features a 3:1 output transformer tap switch that produces a lower output level, allowing the user the option of driving the transformer harder to achieve higher levels of saturation.
Also included are front and back panel mic input access, front panel combo-style XLR + 1/4 inch line/instrument input, an LED VU meter for gain level indication, 48v Phantom power switch, all built around the traditional API circuit design.
The 512v effectively eliminates the need for third party attenuators, and produces the same warm, analogue signal that audio professionals expect from API, says the company.