Redbox RB-SL2 - Uncategorized Sonifex - Free user manual and instructions
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| Product Type | Stereo Line Level Converter |
| Brand | Sonifex |
| Model | Redbox RB-SL2 |
| Dimensions | 19" rackmount, 1U height (44 mm) |
| Weight | approx. 2.5 kg |
| Power Supply | 12V DC via external adapter or 100-240V AC |
| Input Connections | XLR, TRS, RCA (balanced/unbalanced) |
| Output Connections | XLR, TRS, RCA (balanced/unbalanced) |
| Frequency Response | 20 Hz to 20 kHz ±0.5 dB |
| Gain Range | -20 dB to +20 dB |
| Ground Lift Switch | Yes |
| Phantom Power | Not provided (passive circuit) |
| Mounting | 19" rackmount, included brackets |
| Operating Temperature | 0°C to 40°C |
| Maintenance | Clean with a dry, lint-free cloth. Do not use solvents. |
| Safety | Avoid exposure to moisture and extreme temperatures. Use only supplied power adapter. |
| Spare Parts & Repairability | Contact Sonifex or authorized dealer. Unit is serviceable by qualified personnel. |
| General Information | Professional broadcast quality audio converter. Suitable for studio and live sound. |
Frequently Asked Questions - Redbox RB-SL2 Sonifex
How do I connect the Redbox RB-SL2?
Use balanced XLR or TRS cables for optimal noise rejection. For unbalanced sources, use RCA connectors. Set the input selector to match your source type.
What power supply does the RB-SL2 require?
The device can be powered by an external 12V DC adapter (center positive) or via AC mains with the included IEC cable. Check the voltage rating on the unit (100-240V AC).
Can I use the RB-SL2 with phantom power?
No, the RB-SL2 is a passive line converter and does not provide or pass phantom power. Do not connect to phantom-powered inputs unless the unit is designed for it.
How do I adjust the output level?
Use the front-panel gain control to adjust from -20 dB to +20 dB. Start at unity (0 dB) and adjust as needed.
What does the ground lift switch do?
The ground lift switch disconnects the audio ground from the chassis ground to eliminate ground loops causing hum. Use it if you hear a low-frequency hum.
Is the RB-SL2 rackmountable?
Yes, it is 1U high and fits standard 19-inch racks. Mounting brackets are included.
What cables do I need?
For balanced connections, use XLR or TRS cables. For unbalanced, use RCA or TS cables. Ensure cables are of good quality to avoid signal degradation.
Can the RB-SL2 be used in a live sound setup?
Yes, it is ruggedly built for live and studio use. It converts unbalanced signals to balanced for long cable runs.
How do I clean the RB-SL2?
Disconnect power. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or abrasives.
Where can I find spare parts or repair service?
Contact Sonifex directly or an authorized distributor. Repairs should only be performed by qualified technicians.
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USER MANUAL Redbox RB-SL2 Sonifex
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Product information
Brand : Sonifex
Model : Redbox RB-SL2
Category : Uncategorized