1:2 Composite Video & Stereo Audio Distributor & Line Amplifier


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The VM-9S is a high-performance distributor and line amplifier for composite video and unbalanced audio signals. It provides controls to compensate for signal losses inherent in long cable runs.

Features & Benefits

  • Bandwidth - 84MHz (-3dB).
  • Audio Level Control.
  • Level (Gain) and EQ (Peaking) Controls.
  • Looping Input.
  • Selectable Input Signal Termination.

Product Use Diagram

Product Specifications

Inputs1 composite video with loop, 1Vpp/75Ω on BNC connectors with termination switch; 1 unbalanced stereo audio, 1Vpp/50kΩ on RCA connectors
Outputs2 composite video, 1Vpp/75Ω on BNC connectors; 2 unbalanced stereo audio, 1Vpp/100Ω on RCA connectors
Max Output Level2Vpp
Audio Bandwidth25kHz
Video Bandwidth84MHz
Diff. Gain0.2%
Diff. Phase0.05Deg
S/N Ratio74dB
Controls0/+8dB (audio and video)
CouplingVideo DC; Audio AC
THD0.03% @ 1kHz
Power Consumption230V AC; 50/60Hz (115V AC USA); 3.5 VA
Operating Temperature0° to 40°C (32° to 104°F)
Storage Temperature-40° to +70°C (-40° to 158°F)
Product Dimensions W, D, H9.6" x 7" x 1.7" (24.5cm x 18cm x 4.5cm)
Product Weight2.6 lbs (1.2kg)