ADAT
500ADAT implements an in-depth integration of ADAT with
SMUX II and IV to allow recording at high sample rates.
2 ADAT Input and 2 ADAT Output ports enable expansion of
up to 8 channels at 44.1 - 96kHz, or 4 channels at 176.4 -
192kHz.
The below table details the routing of ADAT I/O between the
4 ADAT ports and 500ADAT’s 500 series slots including the
tradeoffs between high sample rates and the available I/O
count:
Sample Rate
In 1
In 2
Out 1
Out 2
44.1/48kHz
Slot Input 1 - 8
N/A
Slot Output 1 - 8
N/A
88.2/96kHz
Slot Input 1 - 4
Slot Input 5 - 8
Slot Output 1 - 4 Slot Output 5 - 8
176.4/192kHz
Slot Input 1 - 2
Slot Input 3 - 4
Slot Output 1 - 2 Slot Output 3 - 4
Note:
In order to achieve the full channel count at the highest sample rates, the audio
interface connected to 500ADAT needs to be compatible with SMUX II and IV
protocols and both ADAT I/O ports need to be connected.
Low-Jitter Internal Clock
500ADAT features an extremely accurate internal clock that is
the governor for all of the AD/DA conversion throughout the
unit. This clock is responsible for making sure all of the
internal converters are in sync to prevent distortion artifacts,
grittiness, and to improve stereo imaging.
It is not uncommon to find professional studios utilising a
standalone master clock to sync all peripheral equipment.
The facts and figures of 500ADAT’s built-in clock are good
enough to stand up against - and in some ways exceed - the
performance of what you would find in expensive standalone
units.
Word Clock Input
The Word Clock Input connector is used to slave 500ADAT from an external clock source via a
BNC cable. In this application, word clock must be connected to the Word Clock Input port of
500ADAT and the ‘Word Clock’ DIP switch set to the ON position on 500ADAT’s Clock Settings
DIP switch.
Note:
When slaving 500ADAT from an external clock, its own internal clock syncs to the
incoming timing information and recovers its own improved clock. For the best
results and the highest quality conversion, we recommend using 500ADAT as the
clock master of your studio.
500ADAT User Manual
-Page 22-
©201
9
Cranborne Audio Ltd
