Sonifex RB-LU4

The Sonifex RB-LU4 is a 1U rack-mountable quad stereo converter designed to interface professional balanced line-level signals with domestic or semi-professional unbalanced equipment. This functionality is essential for applications such as connecting professional satellite receivers to consumer hi-fi systems.

All connections are located on the rear panel, featuring balanced XLR inputs and unbalanced RCA phono outputs for each of the four stereo channels. This design ensures straightforward integration into various audio setups.

The RB-LU4 includes pre-set left and right output gain controls, allowing precise adjustment of output levels to match the requirements of connected unbalanced equipment. This feature ensures optimal audio performance across different devices.

• 4-Channel Conversion: Converts up to 4 unbalanced stereo audio signals to balanced outputs for professional audio systems.

• High-Quality Audio: Ensures pristine signal integrity with low noise and distortion.

• Flexible Connectivity: Features RCA phono connectors for unbalanced inputs and XLR connectors for balanced outputs.

• Adjustable Output Levels: Individual gain controls for precise signal matching to connected equipment.

• Compact and Durable Design: Robust 1U rack-mountable chassis for reliable use in studios, live events, or broadcast setups.

• Versatile Application: Ideal for integrating consumer-grade audio equipment into professional setups.

• Inputs: 8 x balanced XLR-3 female connectors with an input impedance of >20kiloohms.

• Outputs: 8 x unbalanced RCA (phono) connectors with an output impedance of <50ohms.

• Maximum Input Level: +28dBu.

• Maximum Output Level: +22dBu.

• Frequency Response: 20Hz to 20kHz, ±0.1dB (600ohms load, ref 1kHz).

• Total Harmonic Distortion (THD): 0.01% at 1kHz, ref +8dBu output.

• Noise: -100dB at unity gain, ref +8dBu output.

• Common Mode Rejection: >66dB (typical).

• Gain Range: Adjustable from -28dBu to 0dBu for unbalanced output, ref 0dBu into balanced XLR input.

• Power Supply: Filtered IEC, switchable 110-120V or 220-240V, fused, 6W max.

• Fuse Rating: Anti-surge fuse 100mA (230VAC); Anti-surge fuse 250mA (115VAC).

• Dimensions: 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U).

• Weight: Nett: 1.3kg; Gross: 1.9kg.