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Redbox User Handbook No 1
De-emphasis Switch
If de-emphasis is selected (switch 3) the RB-DAC1 will decode 50/15µs emphasis when
indicated by certain channel status bits in the incoming digital audio data.
Digital Select Button
This button is used to switch the digital input from the AES/EBU XLR connector (button out)
to the S/PDIF phono connector (button in).
Technical Specifications RB-DAC1
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)
Headphone Output:
1 x ¼” (6.35mm) A/B gauge 3-pole stereo jack socket
Mains Input:
Filtered IEC, 110-120V, or 220-240V switchable,
fused 10W max
Audio Specification
Max Output Level:
+24dBu (balanced outputs)
+14dBu (unbalanced outputs)
+12dBu (headphone outputs)
Output Impedance:
<50Ω (balanced outputs)
<75Ω (unbalanced outputs)
Dynamic Range:
>100dB
Noise & Distortion:
<0.01% THD + N @1kHz
Sample Freq Range:
30kHz – 100kHz
Gain Range:
Selectable 12dBu, 18dBu or 24dBu output level, ref. FSD
Headphones:
Drives 150 mW into 32Ω to 600Ω headphones
Max Output Level:
+12dBu
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DIGITAL AUDIO CONVERTERS
