BEL DIGITAL AUDIO
BM-A1-S
Configuration
2004 BEL (Digital Audio) Ltd
11
Version 0.3
Adjusting bargraph break-points and ballistics
The adjustments, SW2 and SW6 are located near the power supply.
BM-A1-S bargraph adjustments
SW2-8
AES to analog adjust
OFF
ON
-18dBFS = 0 on analog scale
-20dBFS = 0 on analog scale
The –18dB and –20dB settings define the correspondence between AES input level and the
0 mark on an analog scale. This allows analog scales to be used with digital signals.
Note:
When digital inputs are used with an analogue scale the analogue outputs will be less
than that indicated on the meters since the digital to analogue converters clip at +15
dB. The effective loss is -3dB when the 18 dB position is selected and -5dB when the
20 dB position is selected.
SW2-7
SW2-6
Peak hold decay
OFF
OFF
None (Off)
OFF
ON
3 seconds
ON
OFF
7 seconds
ON
ON
Indefinite
SW2-5
SW2-4
SW2-3
Scale type
OFF
OFF
OFF
AES
OFF
OFF
ON
DIN
OFF
ON
OFF
VU
OFF
ON
ON
BBC
ON
OFF
OFF
Extended VU
ON
OFF
ON
NORDIC
ON
ON
OFF
No scale
ON
ON
ON
No scale
Note:
The OFF position is obtained with a switch lever in the direction of the arrow, (to the
right in the above drawing).
