Kramer VP-411DS
4x1 UXGA/Stereo Audio Standbye Switcher


Kramer's VP-411DS is a high-performance switcher for computer graphics video signals, with resolutions ranging from VGA through UXGA and higher, and unbalanced stereo audio signals. When configured as a standby switcher, it switches to the secondary input upon loss of the primary input.


  • High Bandwidth: 300MHz (-3dB)
  • HDTV Compatible
  • Looping Input: Input 1
  • Automatic Standby Switching - switches from secondary input to primary input when a signal is detected
  • Selectable Primary Input
  • KR-ISP™ Advanced Sync Processing: 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.
  • Flexible Control Options: Front panel, RS-232 (included K-Router™ Windows ® Software), contact closure, & IR remote (included).
  • Output Disconnect
  • Front Panel Lockout


  • Inputs: 4 UXGA on 15-pin HD connectors
    4 unbalanced stereo audio on 3.5mm mini audio connectors
  • Ouputs: 1 UXGA on a 15-pin HD connector
    1 UXGA on a 15-pin HD connector (IN 1 LOOP)
    2 unbalanced stereo audio on a 3.5mm mini audio connector
  • Max. Output Level:
    Video: 1.8Vpp
    Audio: 7.2Vpp
  • Bandwidth(-3dB):
    Video: 300MHz
    Audio: >40kHz
  • Diff. Gain: 0.03%
  • Diff. Phase: 0.06Deg
  • K-Factor: <0.05%
  • S/N Ratio:
    Video:73dB @5MHz
    Audio: 93dB
  • Crosstalk (all hostile):
    Video: –50dB
    Audio: –72dB @1kHz
  • Controls: Input selector; PANEL LOCK and OFF push buttons; IR remote control reception window; connector for extended IR reception;
    RS-232 connector; contact closure terminal block for external wire switching; inputs priority selector dipswitches; normal/KR-ISP™ and program/normal mode selectors via slide switches on the underside.
  • Coupling:
    Video: DC
    Audio: DC
  • Audio THD + Noise: 0.004% @1kHZ
  • Audio 2nd Harmonic: 0.002% @1kHZ
  • Power Source: 12V, 230mA
  • DIMENSIONS: 8.46" W x 6.4" D x 1.7" H (21.5 x 16.25 x 4.36 cm)
  • Weight: Aproximately 2.43 lbs. (1.1 kg)
  • Accessories: Power supply, IR remote control
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