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Sonifex RB-BL4 1U Dual Stereo Bi-Directional Matching Converter
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Sonifex RB-BL4 1U Dual Stereo Bi-Directional Matching Converter, <50Ohms Output Impedance, 20Hz-20kHz, 4x XLR 3 Pin Male, 4x RCA Phono Outputs

SKU: SORBBL4
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Sonifex RB-BL4 Specifications

  • Maximum Input Level

    +28dBu

  • Maximum Output Level

    +28dBu

  • Input Impedance (RCA)

    >10kOhms unbalanced

  • Input Impedance (XLR)

    >20kOhms balanced bridging

  • Output Impedance (RCA)

    <50Ohms

  • Output Impedance (XLR)

    <50Ohms

  • Distortion

    0.01% THD at 1kHz, ref +8dBu output

  • Noise

    -100dB, unity gain, ref +8dBu output

  • Common Mode Rejection

    >66dB typically

  • Frequency Response

    20Hz to 20kHz +/-0.1dB (600 Ohms load, ref 1kHz)

  • Gain Range

    Unbalanced Output: -28dBu to 0dBu, ref 0dBu into balanced XLR input
    Balanced Output: -15dBu to +15dBu, ref -15dBu into unbalanced RCA input

  • Inputs

    4x RCA phono (Unbal), 4x XLR 3 pin female (Bal)

  • Outputs

    4x XLR 3 pin male (Bal), 4x RCA phono (Unbal)

  • Mains Input

    Filtered IEC, switchable 110-120V, or 220-240V, fused, 6W max

  • Fuse Rating

    Anti-surge fuse 100mA 0.79 x 0.2" / 20 x 5mm (230VAC)
    Anti-surge fuse 250mA 0.79 x 0.2" / 20 x 5mm (115VAC)

  • Rack Height

    1U

  • Dimensions (W x D x H)

    19 x 4.3 x 1.7" / 48.26 x 10.92 x 4.32cm

  • Weight

    2.9lbs / 1.32kg

About Sonifex RB-BL4

The Sonifex RB-BL4 is a dual bi-directional stereo unit for interfacing domestic or semi-pro unbalanced equipment to professional balanced line levels and vice versa. The four XLR-3 electronically balanced inputs have an impedance of 20kOhms bridging and are routed to four unbalanced RCA (phono) outputs with an output impedance of <50Ohms.

The four RCA unbalanced inputs have an impedance of 20kOhms and are routed to four balanced XLR-3 outputs with an output impedance of <50Ohms. All connections are on the rear panel. The output gain can be adjusted for left and right channels by using pre-set potentiometers accessible through the rear panel.

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What's in the box:

  • Sonifex Redbox RB-BL4 1U Dual Stereo Bi-Directional Matching Converter
  • Sonifex 1 Year Warranty