Handbook

Redbox User Handbook No 1
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DIGITAL AUDIO CONVERTERS - RB-ADDA
DIGITAL AUDIO CONVERTERS
Technical Specications RB-ADDA
A/D Connections
Analogue Inputs: 2 x XLR 3 pin (balanced) (L & R)
2 x RCA phono (unbalanced) (L & R)
Digital Outputs: 1 x AES/EBU XLR 3 pin plug
1 x S/PDIF RCA phono socket
A/D Audio Specication
Maximum Input Level: +27dBu (balanced inputs)
Maximum Input Level: +17dBu (unbalanced inputs)
Input Impedance: >10kΩ bridging (balanced inputs)
Input Impedance: >20kΩ (unbalanced inputs)
Input Levels: Switchable +24dBu/+18dBu/+12dBu for FSD
Gain Range: Adjustable 3dB loss to 3dB gain (L and R adjust)
Signal to Noise: Better than –109dbFS (RMS A-weighted at 24bit)
Dynamic Range: >110dB
Distortion and Noise: >96dB THD + N at 1kHz
D/A Connections
Digital Inputs: 1 x AES/EBU XLR 3 pin female
1 x S/PDIF RCA phono
Analogue Outputs: 2 x XLR 3 pin male (balanced) (L & R)
2 x RCA phono (unbalanced) (L & R)
D/A Audio Specication
Max Output Level: +24dBu (balanced outputs)
Max Output Level: +14dBu (unbalanced outputs)
Output Impedance: <50Ω (balanced outputs)
Output Impedance: <75Ω (unbalanced outputs)
Dynamic Range: >100dB
Gain Range: Selectable 12dBu, 18dBu or 24dBu output level, ref FSD
Other Connections
Mains Input: Filtered IEC, 110-120V, or 220-240V switchable, 10W max
Fuse Rating: Anti-surge fuse 100mA 20 x 5mm (230VAC)
Anti-surge fuse 250mA 20 x 5mm (115VAC)
Operational Controls
Analogue Input Select: XLR or phono, via push-switch
Bit Depth: 16, 20 or 24 bits via DIP switch
Digital Output Select: AES/EBU or S/PDIF, via push-switch
Modes & Frequencies: 16 way rotary DIP switch
Digital Input Select: AES/EBU or S/PDIF, via push-switch
Channel Status Bits: Set to consumer or professional mode via DIP switch
Equipment Type
RB-ADDA
Combined A/D and D/A converter
Physical Specications
Dimensions (Raw) 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U)
19” (W) x 4.3” (D) x 1.7” (H) (1U)
Dimensions (Boxed) 58.5cm (W) x 22.5cm (D) x 7cm (H)
23” (W) x 8.9” (D) x 2.8” (H)
Weight Nett: 1.6kg Gross: 2.2kg Nett: 3.5lbs Gross: 4.8lbs
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