Simaudio 300D v.2 DAC - Manual (Page 7)

MOON 300 D v.2 Digital-to-Analog Converter
Front Panel Controls
Figure 1: MOON 300 D Front panel
The front panel will look similar to Figure 1 (above). The “Standby” button is located in the lower left corner and toggles the
MOON 300
D between standby mode and operational mode. When in “Standby” mode, the 300 D’s output signal is muted,
however, all digital and analog audio circuitry remains powered up to help maintain optimal performance. As well, the blue
LED on the 300
D will no longer be illuminated when the player is in “Standby” mode.
Directly above the “Standby” button is a vertical array of six (6) red LED’s to indicate the sampling frequency of the digital
input signal: 192 kHz, 176.4 kHz, 96 kHz, 88.2 kHz, 48 kHz and 44.1kHz. Only when the MOON 300
D has successfully locked
onto an input signal will one of these LED’s illuminate.
The “Input” button, located in the lower right corner, allows you to sequentially scroll through the four (4) different digital
inputs; each time you press the “Input” button, the 300
D scrolls to the next input. Directly above the “Input” button are four
(4) red LED’s to indicate the selected input:
D1 TosLink
D2 S/PDIF
D3 S/PDIF
D4
USB
In the event that the 300
D cannot successfully lock onto the digital signal from the selected input, a sampling frequency LED
will not illuminate. This may be the result of i) no digital source component connected to the selected input ii) a faulty digital
audio cable between 300
D and your digital source component, your digital source iii) your digital source component not
being powered up or iv) your digital source component malfunctioning.
When you put the MOON 300
D into “Standby”mode, the currently selected input will remain the same when you put the unit
back into operational mode. However, when the AC power is interrupted, the 300 D will automatically default to the “D1”
input upon powering up.
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Front Panel Controls 7