Kramer VP4X4K
4x4 Computer Graphics Video and Balanced Stereo Audio Matrix Switcher


The Kramer VP-4x4K is a high-performance matrix switcher for computer graphics video signals, with resolutions up to and excedding UXGA, and balanced stereo audio signals.  The unit can route any or all inputs to any or all outputs simultaneously.


  • High Bandwidth: 400 MHz (-3dB)
  • HDTV Compatible
  • Kr-isp Advanced Sync Processiong: Ensures compatibility with a wide range of computers (even if the sync level is too low) by restoring the sync signal waveform. Kr-isp advanced sync processing can be enabled or disabled.
  • Delayed Switching: Up to a 3.5s (user selectable) delay for clean switching
  • Audio Breakaway Switching
  • Memory Locations: Stores multiple switches as presets to be recalled and executed when needed.
  • ALL/OFF Controls: Sends one input to all outputs, can disconnect all outputs, or turn off individual outputs.
  • Take Button: Executes multiple switches all at once
  • Front Panel Control Lock Out


  • Inputs: 4 UXGA on 15-pin HD connectors; 4 unbalanced stereo signals on 3.5mm mini jacks.
  • Outputs: 4 UXGA on 15-pin HD connectors; 4 balanced stereo signals on 5-pin terminal block connectors
  • Max. Output Level: Video: 2.2Vpp; Audio: >15Vpp
  • Bandwidth (-3dB): Video: 400 MHz; Audio: 19 kHz
  • Diff. Gain: 0.07%
  • Diff. Phase: 0.03 Deg
  • K-Factor: <0.05%
  • S/N Ratio: Video: 73.5dB @5 MHz; Audio: 76dB unweighted
  • Crosstalk: Video: -48dB @5 MHz; Audio: -54dB @ 1 MHz
  • Controls: Front panel buttons, RS-485, RS-232, IR & Ethernet
  • Included: Power cord, null-modem adapter, Windows-based control software, rack ears


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