The RB-UL4 is a 1U rack-mount quad stereo unit for interfacing domestic, or semi-pro unbalanced equipment to professional balanced line levels. The eight RCA unbalanced inputs have an impedance of 10k ohms and are routed to four balanced XLR-3 outputs with an output impedance of <50 ohms.
The output gain can be individually adjusted for left and right channels by using pre-set potentiometers accessible through the rear panel.
Audio Specification Maximum Input Level +28dBu Input Impedance 10kohms Maximum Output Level +28dBu Output Impedance <50ohms Distortion 0.01% THD @ 1kHz, ref +8dBu output Noise -100dB, unity gain, ref +8dB output Common Mode Rejection >66dB typically Frequency Response 20Hz to 20kHz +/- 0.1dB (600 ohm load, ref 1kHz) Gain Range Balanced out -15dBu to +15dBu, ref -15dBu into unbalanced input Connections Audio Inputs 8 x RCA phono (unbalanced) Audio Outputs 8 x XLR 3 pin male (balanced) Mains Input Filtered IEC, 110-120V, or 220-240V, fused Physical Specification Weight Nett: 1.3kg Gross: 1.9kg Dimensions Raw: 48cm (W) x 10.8cm (D) x 4.2cm (H) (1U) Boxed: 53cm (W) x 20.5cm (D) x 6cm (H)
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