Redbox RB-DDA22 - Receiver Sonifex - Free user manual and instructions
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| Product Type | Digital Audio Receiver / Distribution Amplifier |
| Brand | Sonifex |
| Model | Redbox RB-DDA22 |
| Dimensions (W x H x D) | 19 x 1.75 x 6.3 inches (483 x 44 x 160 mm) |
| Weight | 2.2 lbs (1 kg) |
| Power Supply | 12V DC, <1A (external power adapter included) |
| Inputs | 2 x AES/EBU (XLR), 1 x Word Clock (BNC) |
| Outputs | 2 x analog (XLR), 2 x AES/EBU (XLR) |
| Supported Sampling Rates | 44.1, 48, 88.2, 96 kHz |
| Bit Depth | 24-bit |
| Frequency Response | 20 Hz to 20 kHz (±0.5 dB) |
| Signal-to-Noise Ratio | >110 dB (A-weighted) |
| Total Harmonic Distortion + Noise | <0.001% @ 1 kHz |
| Front Panel Indicators | Power, Lock, Signal Present (per channel) |
| Mounting | 1U rackmount (brackets included) |
| Operating Temperature | 0°C to 50°C (32°F to 122°F) |
| Cleaning | Wipe with a dry, soft cloth. Do not use solvents. |
| Maintenance | No user-serviceable parts. Contact Sonifex for service. |
| Safety | Use only supplied power adapter. Keep away from moisture. |
| Spare Parts & Repairability | Contact Sonifex support for replacement parts or repair. |
| General Information | Designed for professional studio and broadcast environments. |
Frequently Asked Questions - Redbox RB-DDA22 Sonifex
How do I connect the RB-DDA22 to my digital source?
Use a balanced XLR cable to connect your AES/EBU source to one of the two digital inputs. The unit auto-detects the sampling rate.
What power supply do I need?
The RB-DDA22 requires a 12V DC power supply with a minimum of 1A. Use only the supplied adapter to avoid damage.
Can I use it as an analog distribution amplifier?
Yes, the unit provides two analog outputs via XLR, allowing you to feed analog equipment after digital-to-analog conversion.
Why is the 'Lock' LED not lit?
The 'Lock' LED indicates that a valid digital signal is present. Check your source connection, cable, and settings. Ensure the source is sending an AES/EBU signal.
How do I clean the unit?
Wipe the front panel and chassis with a dry, soft cloth. Do not use alcohol or abrasive cleaners.
What is the maximum cable length for digital inputs?
For AES/EBU at 48 kHz, use up to 100 meters of 110-ohm balanced cable. For higher sample rates, keep cables shorter.
Can I mount it in a rack?
Yes, the RB-DDA22 is 1U high and includes rackmount brackets. Install in a standard 19-inch rack.
Does it support 96 kHz sample rate?
Yes, the unit supports sample rates up to 96 kHz with 24-bit resolution.
What should I do if there is no sound from the analog outputs?
Verify the digital input is locked (Lock LED on). Check that the analog output cables are connected to an active input. Ensure the source is playing.
Is there a warranty?
Sonifex offers a 2-year limited warranty covering manufacturing defects. For warranty claims, contact your dealer or Sonifex support.
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USER MANUAL Redbox RB-DDA22 Sonifex
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Product information
Brand : Sonifex
Model : Redbox RB-DDA22
Category : Receiver