Sonifex TB-6D

    • Provide talkback for up to 7 locations (TB-6D & TB-6R) or 5 locations (TB-SD & TB-SR).
    • Brightly lit push-to-talk buttons.
    • Momentary or latched buttons.
    • Built-in electret microphone, with input for external microphone.
    • Monitoring of 2 external inputs, e.g. for off-air receiver.
    • Auto-muting, or mixing, of external inputs, when talkback is active.
    • Integrates with Sonifex S2 mixer and is compatible with other talkback systems.

    Talkback refers to the standard method of communication between broadcast studios. 
    Each studio has either a desktop, a rack-mount, or mixer-mounted intercom, usually containing a row of switch buttons. Eachswitch button connects to another studio when pressed, and routes the presenter audio to it.

    The TB-6D and TB-6R are used for general talkback between studios and use DC signalling, also known as ground lifting or ground signalling, to communicate with each other. These units can be installed in various locations throughout a studio complex and linked to one another, with each unit being able to talkback to up to 6 others connected together. Most other talkback systems in general operation also use DC signalling, so you should be able to add these units into an existing installation.

    Desktop Or Rackmount
    The TB-6D and TB-6R are identical in operation, with the TB-6D used for desktop operation and the TB-6R available as a 2U rack-mount, for use for example, in a central apparatus room or central technical area.

    Radio Studio Application Using TB-6D & TB-6R
    A typical application would be to distribute talkback and audio feeds around a radio or TV studio complex, as in this diagram. The TB-6D and TB-6R units are daisy-chained together from location to location and the radio station output from an off-air receiver is distributed on input EXT 1 of each unit.

    The EXT 2 input could be used in the news or sales area for monitoring local sources such as a PC audio output. Linking the studios in this way allows all locations to talk to each other together with the ability to monitor 2 external feeds, with independent control of monitor muting and headphone/speaker levels.

    DIMENSION (HXWXD) 6.1cm - 2.4? x 22cm - 8.7? x 17.0cm - 6.7?
    INPUTS 1 balanced talkback
    INPUT IMPEDANCE greater than 30k
    WEIGHT 2.0kg / 4.4lbs
    OUTPUT IMPEDANCE less than 80
    OUTPUTS 15 way male D-type plug (TB-6D & TB-6R) for 6 balanced talkback
    GAIN RANGE / CONTROL 9dB to -28dB adjusted by rear panel preset pot
    DIMENSIONS 8.9cm - 3.5? x 48.3cm - 19? x 18.5cm - 7.3?
    POWER INPUT 85V - 264V AC, 47-63Hz, max 10W

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