Handbook

Table Of Contents
36
Redbox User Handbook No 3
For the digital output, there is a switch available to dene the content of the channel
status bits embedded within the digital audio stream. The channel status bits will be forced
to Professional Mode for sample rates above 48kHz, as they are not supported by the
Consumer Mode. For sample rates of 32kHz, 44.1kHz and 48kHz, the status bits can be either
set to Professional or Consumer Mode.
The bit depth of the digital output can be set to 16, 20 or 24 bits, with a psycho acoustic
noise lter used to dither signals below 24 bit.
System Block Diagram
Fig 6-2: RB-DMA2 System Block Diagram.
Front Panel Indicators & Controls
Fig 6-3: RB-DMA2 Front Panel.
Balanced
Mic Inputs
XLR
Balanced
Line Outputs
Digital
Send Select
Digital
Sync Select
Word
Clock
Recovered
Clock
Master Clock
Generator
Frequency
Select
AES/EBU
S/PDIF
AES/EBU
S/PDIF
LF Filter
48V Phantom
Power
LF Filter
Digital Sync Inputs
Gain Control
1
2
1
2
ADC
AES
Receiver
AES
Transmitter
Gain Control
Input Level
Indicators
Input Level
Adjustment
Sync & Power
Indicator
MICROP HONE AMPLIF IERS
& LIMITERS
MICROPHONE AMPLIFIERS & LIMITERS - RB-DMA2
6