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. control key
a. INPUT-, INPUT+, PHASE, OS/NOS, MUTE, MODE. press these buttons for direct control of the audio
input source, phase, sample mode, mute and operating mode.
b. Description of each key
(❶ in Fig. 1) Standby button: press the standby power button, the standby indicator in Fig. 1 goes off
and the DAC starts to work; on the contrary, the lamp is on, indicating that the DAC ishandles the standby
state.
INPUT- button: Selects or switches to the previous input source.
INPUT+ button: Selects or switches to the next input source.
PHASE Button: Phase selection switch. When this button is pressed, the light ⑤ in Figure 1 illuminates
for in-phase output, and turns off for out-of-phase output.
OS/NOS button: Source and oversampling selector switch, when this button is pressed, ⑥ in Fig. 1 is NOS
when the light is on, and OS when the light is off.
MUTE button: When this button is pressed, all source indicators are flashing.
MODE button: Used to switch between different preset modes.
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