RDL RU-AFC2 Audio Format Converter

Radio Design Labs' RU-AFC2 is a stereo bi-directional audio format converter. The bi-directional format allows the RU-AFC2 to fully convert the stereo input and stereo output of a consumer audio product to professional balanced standards. It can equally convert the stereo input and stereo output of a professional audio product to consumer unbalanced standards. The audio fidelity, low noise, low distortion and excellent crosstalk performance of the RU-AFC2 are ideally suited to the most critical applications.

Unbalanced audio connections are available on front-panel RCA jacks. Balanced audio connections are available on front-panel XLR jacks and on rear-panel detachable terminal blocks. The shield connections of the XLR output jacks are connected to the case through a rear-panel ground-lift switch. The unbalanced to balanced section includes an additional MONO summed output on a rear-panel detachable terminal block which may be wired balanced or unbalanced. The mono output may be used to drive patch-bay jacks, powered monitors or subwoofer amplifiers.

Each of the left and right outputs is equipped with a dual-LED VU-meter. The intensity of the green LED is proportional to the audio level. The red LED flashes at the calibrated output level -10 dBV unbalanced or +4 dBu balanced. An individual multi-turn level trimmer is provided on the front panel for each output channel.

The RU-AFC2 operates from ground-referenced 24 Vdc. Use the RU-AFC2 individually, or combine it with other RDL products as part of a complete audio/video system.

Radio Design Labs RU-AFC2 Features:

• Unparalleled Audio Performance
• Unbalanced to Balanced Audio Conversion
• Additional Summed MONO Out
• Switch-Selectable Ground Lift for XLR Output Jacks
• Balanced to Unbalanced Audio Conversion
• Unbalanced RCA Connections on Front Panel
• Balanced XLR Connections on Front Panel
• Balanced Connections on Rear Panel Detachable Terminal Blocks
• Front-Panel Multi-Turn LEVEL Trimmers
• Dual-LED VU Meter for Each Channel
• Gold-Plated Connectors
• Exceptional Headroom and Frequency Response
• 1/3 Rack, High Density Rack Mounting

Radio Design Labs RU-AFC2 Specifications:

• UNBAL TO BAL SECTION: (Referred to -10 dBV input feeding +4 dBu)
  • Inputs (2): Unbalanced line-level, +25 dBV max.
  • Input Connectors (2): RCA Phono jack (left and right)
  • Outputs (3): +4 dBu balanced (left, right, mono sum), +25 dBu max.
  • Output Connectors (4): XLR (2) and/or detachable terminal block (left and right); detachable terminal block (mono sum)
  • Gain adjustment: -25 dB to +9 dB (rel. +4 dBu)
  • Frequency Response: 10 Hz to 150 kHz (+/- 0.25 dB)
  • THD+N: < 0.005%
  • Noise: < -90 dB (below +4 dBu)
  • Crosstalk: < -80 dB (20 Hz to 20 kHz)
  • Headroom: > 20 dB
• BAL TO UNBAL SECTION: (Referred to +4 dBu input feeding -10 dBV)
  • Inputs (2): Balanced line-level, +25 dBu max.
  • Input Connectors (3): XLR (2) or detachable terminal block (left and right)
  • Outputs (2): -10 dBV unbalanced (left and right), +17 dBV max.
  • Output Connectors (2): RCA Phono jack (left and right)
  • 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)
  • THD+N: < 0.001%
  • Noise: < -100 dB (below -10 dBV)
  • Crosstalk: < -90 dB (10 Hz to 20 kHz)
  • Headroom: > 20 dB
  • Ambient Operating Environment: 0° C to 55° C
  • Power Requirement: GROUND-REFERENCED, 24 Vdc @ 60 mA (idle), 100 mA (max)
  • Package Type: Cardboard Box
  • Package Dimensions: 6 x 6 x 2.625 in.
  • Shipping Weight: 1.555 lbs.
  • WEEE weight: 1.34 lbs.
  • Tariff code: 8518.40.2000