Redbox RB-DMA2 - Receiver Sonifex - Free user manual and instructions
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| Product Type | Professional Audio Receiver |
| Brand | Sonifex |
| Model | Redbox RB-DMA2 |
| Category | Receiver |
| Dimensions (W x H x D) | 482 mm x 44 mm x 200 mm (19" rack mount, 1U) |
| Weight | Approximately 2.5 kg |
| Power Supply | 12V DC (external adapter) or mains via included PSU |
| Power Consumption | < 10W |
| Inputs | Multiple analog (XLR, RCA) and digital (AES/EBU, SPDIF) |
| Outputs | Balanced XLR, unbalanced RCA, headphone |
| Frequency Response | 20 Hz - 20 kHz ±0.5 dB |
| Signal-to-Noise Ratio | > 100 dB |
| THD+N | < 0.01% |
| Sample Rate Support | Up to 192 kHz (digital inputs) |
| Control | Front panel buttons, optional remote control |
| Indicators | Power, signal presence, clip, sample rate |
| Rack Mountable | Yes, 19" 1U with included brackets |
| Operating Temperature | 0°C to 40°C |
| Cleaning | Wipe with a soft, dry cloth. Do not use solvents. |
| Safety | Ensure proper ventilation; do not expose to moisture. |
| Spare Parts & Repairability | Contact Sonifex or authorized service centers for internal components. |
| Warranty | Standard 2 years (extendable) |
| General Information | Professional-grade receiver for broadcast and studio applications. |
Frequently Asked Questions - Redbox RB-DMA2 Sonifex
What is the Sonifex Redbox RB-DMA2?
The Sonifex Redbox RB-DMA2 is a professional audio receiver designed for broadcast and studio environments. It accepts multiple analog and digital inputs and provides balanced outputs.
How do I connect the RB-DMA2 to my system?
Use the XLR or RCA analog inputs for legacy equipment, or AES/EBU / SPDIF for digital sources. Outputs are available on XLR and RCA. Ensure proper impedance matching.
Can the RB-DMA2 be rack-mounted?
Yes, it is a 19-inch 1U rack-mountable unit. Rack ears are included for installation in a standard equipment rack.
What power supply does it require?
The RB-DMA2 operates on 12V DC, supplied by an external power adapter (included). It can also be powered via an optional mains adapter.
Does the device support high-resolution audio?
Yes, the digital inputs support sample rates up to 192 kHz, making it compatible with high-resolution audio formats.
How do I clean the RB-DMA2?
Turn off the device and wipe the exterior with a soft, dry cloth. Do not use any liquid cleaners or abrasive materials.
What should I do if there is no sound output?
Check that the power LED is on, ensure input signal is present (signal LED), and verify correct input selection. Also check cables and volume settings.
Is the RB-DMA2 compatible with balanced or unbalanced signals?
It supports both. Use XLR connections for balanced signals, and RCA for unbalanced. The device can handle consumer and professional levels.
Where can I find spare parts or get repairs?
Contact Sonifex directly or an authorized service center. Internal components should only be replaced by qualified technicians.
What is the warranty period?
The standard warranty is 2 years from the date of purchase. Extended warranty options may be available through Sonifex.
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