The Firestone Audio GreenKey is a USB Isolator and is designed to solve electrical noise problems, coming through a USB connection of a computer that can influence the audio signal. The most important part of digital audio is the clarity of the data traveling along the USB cable. Since the very beginning of PC based audio, the noise from the power lines has effected the data integrity creating problems with the timing of the digital signal, known as jitter. The GreenKey will help reduce that interference substantially by isolating the power from the connection to the DAC.

Technical Specifications