JK Audio Universal Host

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jk news pic.PNG

JK Audio Universal Host


The Universal Host easily converts your IP or PBX telephone into a professional, affordable interview station. This desktop digital hybrid provides talk show quality caller audio from most telephone systems. Simply connect between your telephone handset and the base of your telephone. The digital hybrid connects audio signals to your IP or PBX type telephone system through the telephone handset cord.


Universal Host provides connections for a microphone, headphones, mixer, sound card, and telephone handset. The stereo output jack on the back of the unit provides your voice on one channel and only the caller’s voice on the other channel. The balanced XLR output jack contains only the caller’s voice. The Handset and Online buttons select between talking on the handset, or sending and receiving through the audio connections. A second switch selects between monitoring the caller or listening to the USB codec over the headphones.

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  • Send 1: Balanced Female XLR
  • Impedance: 1k Ω
  • Level: 15 mV RMS (-34 dBu nom)
  • Mic/Line PAD Switch: +6 dBu max
  • Send 2: 1/8" (3.5mm) Mono
  • Impedance: 20k Ω
  • Level: 250 mV RMS (-10 dBu nom)
  • Caller Out: Balanced Male XLR
  • Impedance: 200 Ω
  • Level: 500 mV RMS (-4 dBu nom, +14 dBu max) Caller Only
  • Stereo Out: 1/8" (3.5mm)
  • Impedance: 50 Ω
  • Level: 250 mV RMS (-10 dBu nom, +6 dBu max) Left = Send, Right = Caller
  • Headphone: 1/8" (3.5mm)
  • Impedance: 8 Ω
  • Level: 250 mW Mixed Send and Caller


  • Connector: Mini Type B Female
  • Standard: v2.0
  • Sampling Rate: 32 kHz, 44.1 kHz, 48 kHz


  • Phone Line Connector: RJ22
  • Aux Phone Connector: RJ22
  • Isolation: 1500 VAC
  • Frequency Response: Telephone Side 200 Hz-3600 Hz
  • Power: 120-240 VAC Power Supply
  • Size: 7" x 6" x 1.6" (18 x 15 x 4.2 cm)
  • Weight: 2.2 lbs. (1kg)