The Grace Design m905 DAC Upgrade Kit For m905 Analog Reference Monitor Controller adds AES, S/PDIF, and ADAT digital inputs with an asynchronous Class 2 USB 24-bit/192 kHz digital to analog converter to the existing analog monitor controller's balanced and unbalanced analog inputs. The device is designed to deliver mastering-quality monitoring to your home or professional studio.
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\r\nThe unit allows you to switch between a variety of input sources. Additionally, the unit has three stereo pairs of balanced speaker outputs with two assignable mono sub outputs, giving you a versatile selection of monitoring options when mixing or mastering.