ESI ESI Amber i1 USB-C Audio Interface 24-bit with 2 Inputs / 2 OutputsAmber i1 is the entry into our long awaited new line of professional USB audio hardware: the Amber series. As the replacement of our legendary U22 XT, this audio interface offers more than competitive products in this class. The Amber series features a new modern eye catching design with an amber colored volume knob that stands out from the green sand main body color, making it more recognizable. Hardware loopback, USB C, a completely newly designed