RDL RU-AFC2 – Stereo Bi-Directional Audio Format Converter
RDL RU-AFC2 – Stereo Bi-Directional Audio Format Converter is backordered and will ship as soon as it is back in stock.
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RDL RU-AFC2 – Stereo Bi-Directional Audio Format Converter
What is the RDL RU-AFC2?
The RDL RU-AFC2 is a stereo, bi-directional audio format converter that interfaces consumer -10 dBV equipment with professional +4 dBu balanced systems in both directions. One module converts a consumer device's stereo output up to balanced levels and feeds its stereo input from a balanced source. Front-panel RCA and XLR jacks plus rear terminal blocks make it a practical rack interface for media players, PCs and recorders.
How does it work?
The unbalanced-to-balanced section accepts left and right RCA inputs and delivers +4 dBu balanced outputs on front-panel XLR jacks and rear detachable terminal blocks. It also provides a mono summed output on a rear terminal block, wired balanced or unbalanced, for patch bays, powered monitors or subwoofer amplifiers. The balanced-to-unbalanced section accepts XLR or terminal block inputs and delivers -10 dBV outputs on front-panel RCA jacks. A rear-panel ground-lift switch connects the XLR output shields to the case, which helps resolve ground loops. Each output channel has a front-panel multi-turn level trimmer and a dual-LED VU meter whose red LED flashes at the calibrated level. Frequency response extends from 10 Hz to 150 kHz (±0.25 dB) with more than 20 dB of headroom in both sections. The module operates from ground-referenced 24 Vdc at 60 mA idle and 100 mA maximum; RDL recommends the PS-24AS (USA) or PS-24AX (international) power supply, not included. Mount it with the RC-1UR 1RU rack chassis, RU-HRA1 10.4-inch rack mount or RU-SMA1 surface mounting plate.
What are the key features?
- Bi-directional conversion — One module converts consumer outputs to balanced and balanced outputs to consumer levels.
- Summed mono output — An extra mono output feeds patch bays, monitors or subwoofer amplifiers.
- XLR and terminal block connections — Balanced audio is available on front XLR jacks and rear detachable terminal blocks.
- Ground-lift switch — A rear-panel switch lifts the XLR output shields to address ground loops.
- Per-channel metering and trim — Dual-LED VU meters and multi-turn trimmers set each output precisely.
- Wide frequency response — Response runs 10 Hz to 150 kHz (±0.25 dB) with more than 20 dB headroom.
Where is it typically used?
- Conference room
- Boardroom
- Training room
- House of worship
- Auditorium
- Broadcast studio
Technical Specifications
| Unbal to bal inputs (2) | Unbalanced line level, RCA (L/R), +25 dBV max |
| Unbal to bal outputs (3) | +4 dBu balanced (L, R, mono sum), +25 dBu max; XLR and/or terminal block |
| Unbal to bal gain | -25 dB to +9 dB (rel. +4 dBu) |
| Bal to unbal inputs (2) | Balanced line level, XLR or terminal block, +25 dBu max |
| Bal to unbal outputs (2) | -10 dBV unbalanced, RCA (L/R), +17 dBV max |
| Bal to unbal level adjustment | -28 dB to +5 dB (rel. -10 dBV) |
| CMRR | > 80 dB (50 to 120 Hz) |
| Frequency response | 10 Hz to 150 kHz (±0.25 dB) |
| Headroom | > 20 dB |
| Power requirement | Ground-referenced 24 Vdc @ 60 mA idle, 100 mA max |
| Operating environment | 32°F to 131°F (0°C to 55°C) |
| Shipping weight | 1.53 lb |
Frequently Asked Questions
Does the RU-AFC2 convert in both directions?
Yes. It has separate unbalanced-to-balanced and balanced-to-unbalanced stereo sections that work at the same time.
What is the mono output used for?
It provides a summed mono signal for patch-bay jacks, powered monitors or subwoofer amplifiers.
Can it help with ground loop hum?
A rear-panel ground-lift switch disconnects the XLR output shields from the case, which can help resolve ground loops.
Is a power supply included?
No. It needs ground-referenced 24 Vdc; RDL recommends the PS-24AS (USA) or PS-24AX (international) power supply, not included.
How is it mounted?
Use RDL RACK-UP accessories such as the RC-1UR 1RU rack chassis, RU-HRA1 10.4-inch rack mount or RU-SMA1 surface mounting plate.
What warranty applies?
This product is covered by a 7-year RDL warranty. For warranty claims, RMAs or support, contact Creation Networks at (888) 230-3661 or sales@creationnetworks.net.
At Creation Networks, we do everything we can to create an excellent customer experience. This includes fast shipping and easy returns.
- Most in-stock orders placed Monday-Friday ship within 24-48 hours. General restrictions apply; please see our full shipping policy here.
- We offer a 30-day return policy from the delivery date on many products. Product restrictions apply. Restocking fees for the return of open-box items. Please see our full return policy here for more information.
Nationwide Audiovisual Services, Design, Installation & Support
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