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Sonifex HY-03 Automatic Digital Telephone Balance Unit, Free Standing
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Sonifex HY-03 Automatic Digital Telephone Balance Unit, Free Standing, 50 Ohms Impedance

SKU: SOHY03US
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Sonifex HY-03 Specifications

  • Input Impedance

    Line Mode (Clean Feed): 10kOhms balanced 0dB
    Microphone Mode: 200Ohms balanced

  • Clean Feed Limiting Input

    -4dBu

  • Microphone Level Range

    From 74dB to 40dB adjusted by preset pot

  • Bandwidth to Telephone Line

    250Hz - 4kHz, -3dB ref 1kHz

  • Telephone Line Impedance

    600Ohms (Nominally)

  • Telephone Line Impedance Range

    300 to 1500Ohms

  • Output Impedance

    50Ohms balanced floating 0dBu

  • Output Level Range

    +8dB to -14dB adjusted by preset pot

  • Rejection Ratio

    45dB on 1kHz tone, typically 28dB on complex waveforms, reference peak level of 0dB

  • Ring Detector Sensitivity

    1 ring to 6 rings

  • Connections

    Mic/Line Input: XLR 3 pin female, with push-button mic/line selection
    Line Output: XLR 3 pin male
    Telephone Line: RJ11 6/4 socket
    Telephone Handset/Instrument: RJ11 6/4 socket
    Remotes: 9-way D-type socketbr>Power: IEC mains (CEE22)

  • Dimensions (H x W x D)

    4.5 (1U) x 21.8 x 17.5cm / 1.77 x 55.37 x 6.89"

  • Weight

    2.76lbs / 1.25kg

About Sonifex HY-03

The Sonifex HY-03 Automatic Digital Telephone Balance Unit is the replacement for the HY-02, which for many years has set the standard as an excellent value, high quality telephone hybrid.

Sonifex HY-03 Features

  • Fully automatic - adapts to varying line conditions and has automatic signal limiting
  • Local and remote line hold switching - calls can be remotely switched through a mixing console
  • Momentary or permanent latching remotes can be enabled
  • Balanced mic/line input - 10k ohm balanced input selectable for 0dBu clean feed line, or microphone level with adjustable gain
  • Balanced output - 0dBu low impedance balanced output, with output gain adjustment
  • Mixed output - the output can be a mix of the caller and mic/line input signals for recording both sides of the telephone conversation
  • Integrated ring detector - automatic call answering after a pre-determined number of rings
  • Fitted with K-break disconnect detection as standard with an option for dial-tone disconnect using the optional HY-03DTD board
  • The HY-03DTD board can be configured to disconnect on recognizing the dial tone used in a specific country
  • Line limiter, bandpass filter and output noise gate with preset threshold providing low distortion crystal clear audio
  • 28dB typical line balance rejection
  • Built in power supply with switchable 115V, or 230V, mains input
  • BABT approval compliant with European PTT specifications

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Key Features

  • Fully automatic
  • Adapts to varying line conditions & has automatic signal limiting
  • Local & remote line hold switching
  • Calls can be remotely switched through a mixing console
  • Momentary or permanent latching remotes can be enabled
  • Balanced mic/line input

What's in the box:

  • Sonifex HY-03 Automatic Analogue Telephone Balance Unit
  • RJ11 to RJ11 Telephone Line Lead
  • RJ11 to BT Plug Telephone Line Lead
  • BT Handset Socket to RJ11 Plug Adapter
  • IEC Mains Lead
  • Handbook
  • Sonifex Warranty