Manual
Chapter 8 - RB-DMA2 Dual Digital Microphone Amplifier
8-8 Redbox User Handbook
8.5.2. Audio Specification
Min/Max Input Level: -63dBu / 5dBu to give FSD
Input Impedance: 2kΩ nominal balanced
Gain Range: 68dB
Signal to Noise: 128dB EIN
Dynamic Range: >110dB
Distortion and Noise: < 0.01% THD + N absolute @ 1kHz
Phantom Power: +48V
Low Frequency Roll-off: 125Hz @ 6dB/octave
Analogue Output Level: +18dBu Ref. FSD
8.5.3. Operational Controls & Indicators
Bit Depth: 16, 20 or 24 bits via DIP switch
Digital Output Select: AES/EBU or S/PDIF, via push-switch
Sample Frequencies: 32kHz – 96kHz, via rotary switch
Sync Modes: Master, Slave, Auto, Auto-Lock via rotary switch
Digital Input Select: AES/EBU or S/PDIF, via push-switch
Channel Status Bits: Set to consumer or professional mode via DIP
switch
Output Routing: Set dual mono output via dipswitch
Led Level: Green ind. -18dBFS, Orange ind. -12dBFS, Red
ind. -6dBFS
8.5.4. Equipment Type
RB-DMA2 Dual Digital Microphone Amplifier
8.5.5. Physical Specifications
Dimensions (Raw): 48cm (W) x 10.8cm (D) x 4.2cm (H)(1U)
Dimensions (Boxed): 53cm (W) x 20.5cm (D) x 6cm (H)
Weight: Nett: 1.6kg Gross: 2.2kg