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RDL AV-DC4 Line-Level Audio Divider/Combiner with Ground Lift
    Questions? Ask a Markertek Expert:
    800-522-2025 Email

    RDL AV-DC4 Line-Level Audio Divider/Combiner with Ground Lift

    Manufacturer: Radio Design Labs

    Item #: RDL-AV-DC4   •   MFG #: AV-DC4


    List Price:$297.19
    Our Price:$225.24

    free ship
    Availability: Usually ships in 3-10 business days
    This item is currently out of stock and will ship the minute we receive it – typically 3-10 business days. Need it sooner? Expedited delivery options may be available. Email [email protected] or call customer service at 800-522-2025 and we’ll make it happen.



      The AV-DC4 is a mono transformer-coupled audio divider/ combiner module for use with balanced, low or high impedance audio inputs and outputs. Input and output connections are provided on XLR jacks with gold-plated contacts. The AV-DC4 features four identical channels. Each channel may be used as either an input or as an output. Two XLR jacks are provided on each channel. The female jack is used if the channel is being used as an input; the male jack is used if the channel is being used as an output. The shield (pin 1) connections of both XLR jacks on a particular channel are normally connected to ground. The GND LIFT switch on each channel is used to disconnect the shield from circuit ground at audio frequencies.Galvanic isolation between each of the channels is provided by a studio quality audio transformer. The AV-DC4 breaks the "ground loop" connection that can produce hum in a sound system. The input connector shield does provide a radio frequency ground return, thereby preserving system immunity to radio interference.The four channels allow multiple uses for the AV-DC4. A single mono audio source can be divided to feed one, two or three mono equipment inputs. A stereo source can be combined to mono, feeding one or two mono equipment inputs. A mono source can be divided to feed a stereo equipment input (left and right). A stereo source can be combined to mono and simultaneously be divided to feed the mono signal to both the left and right inputs of stereo equipment. Ground lift may be selected individually on any of the channels.The AV-DC4 is a rugged product designed for portable use. For fixed installations, a mounting bracket is included.

      • Features

        • Combine Audio Signals to a Single Output
        • Combine Stereo Line-Level Signals
        • Feed a Mono Signal to Stereo Inputs
        • Combine Multiple Lines to a Single Input
        • Switch-Selectable Ground Isolation in Balanced Lines
        • Line-Level Ground-Loop Elimination
        • Balanced Mono Galvanic Isolation
        • Signal Divider or Combiner in Rugged Field Case
      • Specifications

        • Input: +4 dBu nominal
        • Output: +4 dBu nominal
        • Frequency Response: 20 Hz to 20 kHz (± 0.05 dB)
        • THD+N: < 0.5% (50 Hz to 20 kHz; two 150 Ω sources,
          two 10 kΩ loads); 0.02% @ 1 kHz
        • Insertion Loss: 1 dB nominal (one input, one output);
          6 dB nominal (two inputs, two outputs)
        • Finish: RDL Dark ULTRASTYLE
          (dark gray with beige lettering)Dimensions: Height: 1.75 in. 4.45 cm (unmounted); Height: 1.95 in. 4.95 cm (mounted); Width: 3.53 in. 8.97 cm; Length: 7.93 in. 20.14 cmAmbient Operating Environment: 0° C to 55° CPackage Type: Cardboard Box
        • Package Dimensions: 4 x 10 x 2 in.
        • Shipping Weight: 2.985 lbs.
        • WEEE weight: 2.595 lbs.
        • Tariff code: 8518.40.2000
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