User`s guide

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User’s Guide ADI-8 DS © RME
8.6 D/A Input
The button D/A Input selects the signal source of the DA-converters. A
currently active Patch Mode does not disable this function, the DA-
conversion is always available.
Each input has its own SYNC LED. If a valid input signal is applied,
SyncCheck is automatically active. SyncCheck takes the chosen clock
(internal, external, etc.) as reference and compares it with the input
clocks. Inputs which are not synchronous will be signalled by flashing of
the corresponding SYNC LED.
8.7 D/A State - Meters
The 8 level meters of the D/A STATE show the digital input level per channel as digital value
(dBFS). The yellow 0 dBFS LEDs become active already 2 dB before full scale level (-2 dBFS)
with half brightness, and full brightness at 0 dBFS.
8.8 D/A Reference
The analog output level of the DA-converters is referenced to digital full
scale level (0 dBFS). The choices are: +4.2 dBu (-10 dBV compatible), +13
dBu, +19 dBu and +24 dBu. As the adaptation is performed in the analog
domain, the ADI-8 DS achieves the highest possible values for Signal to
Noise ratio and distortion ratio in any setting.
When selecting +24 dBu the LEDs +19 dBu and +24 dBu are lit at the same
time, indicating that the TRS jacks stay at +19 dBu while the D-sub
connector outputs are operated at +24 dBu.