After many years of requests for an API line amp, API Audio is announcing that the API 535-LA Line Amplifier is the newest addition to the 500 Series collection.
Modeled after API's highly prized console-based 325 booster cards, the 535 can both amplify and attenuate incoming and outgoing signals for ultimate flexibility, all while providing API's trademark API warmth and tone. The 535 is useful anywhere signal levels need adjusting such as inputs from keyboards, audio playback devices, or from mic preamps or audio processing devices that do not have their own level control. The 535 excels at adding warmth to digital signals such as DAW outputs, and features an LED clip indicator. The 535-LA also includes a balanced input, a polarity switch, a 20db pad for incoming signal attenuation and a 3-position toggle switch, which allows for different output gain levels from the transformer. This is designed to drive long balanced lines with low distortion just as the 325 booster card does. Output gain range is from 6dB to 45dB. The 535 utilizes the discrete 2510 and 2520 op amps along with API's proprietary transformers to create the unique, warm and reliable sound that API users expect.