用得 DAC 當然用 Analog output, 即 RCA or Balance (XLR) 做 output
copy from DAC Magic user manual: http://www.cambridgeaudio.com/as ... Manual01English.pdf
-----------------------------------------
Digital Outputs
The digital outputs allow a digital recording device to be connected. These outputs loop or passthrough unprocessed digital audio from the selected digital input. Two types are available (both the co-axial and the optical are active concurrently and can be used to connect and run equipment at the same time):
S/P DIF co-axial – to obtain best results, use a high quality 75 ohm digital RCA interconnect cable (not one designed for normal audio use).
TOSLINK optical – use a high quality TOSLINK fibre-optic interconnect cable designed specifically for audio use. To achieve the best results we always recommend using high quality Cambridge Audio leads, which are guaranteed for life.
Note: These outputs are pass-through only; there is no upsampling or any other modification done to the LPCM input signal.