Calrec Apollo - Page 123

CALREC Putting Sound in the Picture 123
HYDRA2 Analogue INPUTS
system set for
to Digital Outputs with 0 dB gain
+18 dBu = 0 dBFS 110 dB
+24 dBu = 0 dBFS 116 dB
to Analogue Outputs with 0 dB gain *
N/A 118 dB
DYNAMIC RANGE FOR ANALOGUE AND AES3 (INPUTS)
HYDRA2 AES3 UNBALANCED
DIGITAL INPUTS
system set for SRC on I/P SRC on I/P
to Digital Outputs with 0 dB gain
N/A off 138 dB on 130 dB
to Analogue Outputs with 0 dB gain
+18 dBu = 0 dBFS off 111 d B on 111 d B
+24 dBu = 0 dBFS off 117 dB on 117 dB
HYDRA2 AES3 BALANCED DIGITAL
INPUTS (MODULAR I/O ONLY)
system set for SRC on I/P SRC on I/P
to Digital Outputs with 0 dB gain
N/A off 138 dB on 130 dB
to Analogue Outputs with 0 dB gain
+18 dBu = 0 dBFS off 111 dB on 111 d B
+24 dBu = 0 dBFS off 117 dB on 117 dB
HYDRA2 Analogue OUTPUTS
system set for SRC on I/P SRC on I/P
from Digital Inputs with 0 dB gain
+18 dBu = 0 dBFS off 111 d B on 111 dB
+24 dBu = 0 dBFS off 117 dB on 117 dB
from Analogue Inputs with 0 dB gain *
N/A N/A 118 dB
DYNAMIC RANGE FOR ANALOGUE AND AES3 (OUTPUTS)
HYDRA2 AES3 UNBALANCED
DIGITAL OUTPUTS
system set for SRC on I/P SRC on I/P
from Digital Inputs with 0 dB gain
N/A off 138 dB on 130 dB
from Analogue Inputs with 0 dB gain
+18 dBu = 0 dBFS N/A 110 dB N/A
+24 dBu = 0 dBFS N/A 116 dB N/A
HYDRA2 AES3 BALANCED DIGITAL
OUTPUTS (MODULAR I/O ONLY)
system set for SRC on I/P SRC on I/P
from Digital Inputs with 0 dB gain
N/A off 138 dB on 130 dB
from Analogue Inputs with 0 dB gain
+18 dBu = 0 dBFS N/A 110 dB N/A
+24 dBu = 0 dBFS N/A 116 dB N/A
* The analogue to analogue dynamic range is achieved because the system can accept analogue signals of up to +28 dBu from input
to output at 0 dB gain. Obviously, an analogue input of up to +28 dBu must be attenuated to output this digitally, but this attenuation
will maintain the Dynamic Range of the input, as the analogue input noise will be attenuated by the same amount as the signal, and the
analogue input noise will still be dominant above the noise floor of the digital system.