Radio Design Labs EZ-VMD4E
1x4 Video Distribution Amp VGA/XGA EQ


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The EZ-VMD4E is a high-resolution computer video distribution amplifier with four outputs. The input has an associated ID BIT switch to assure compatibility with various computers. Sync is front-panel switch-selectable between standard TTL or 75 O video. One of the four outputs is indivually buffered for driving the computer monitor.

The other three outputs are driven by separate output amplifiers that include rear-panel gain and equalization trimmers that provide adjustable compensation for quality monitor cable lengths exceeding 100 m (300 ft). All switched functions are easily accessible on the front panel.

The EZ-VMD4E is used in houses of worship, restaurants, clubs, meeting rooms, educational facilities, conference rooms, stores and commercial A/V systems. Power supply included.


  • Input and Outputs on HD15 Female Connectors
  • Wide RGB Bandwidth > 400 MHz Loaded
  • High Resolution Compatibility VGA through QXGA
  • Reliable Full-Size Switches for Switched Functions
  • Switch-Selectable TTL or Video 75 O Input Sync
  • Front-Panel ID Bit Selection for Each Input
  • DC RGB Coupling, Output Polarity and Offset FollowInput
  • Rear-Panel GAIN and EQ Peaking Trimmers


  • Input: VGA - QXGA RGBHV or RGB with combined sync
  • Outputs (4): LOCAL MONITOR (1, Buffered, ID bitpass-thru to INPUT 1), OUTPUTS (3, with GAIN and EQ trim)
  • Gain: Unity (LOCAL MONITOR output), Unity to +6 dB(Monitor outputs)
  • Equalization (peaking): None (LOCAL MONITOR output),Adjustable 0 to +8 dB at 100 MHz (Monitor outputs)
  • Video bandwidth: > 400 MHz
  • Video impedance: 75 O (Input and output)
  • Sync (HV) input: 500 O TTL or 75 O Video(Switch-selectable), 0.7 V to 5 V p-p
  • Sync (HV) output: 5V TTL
  • Sync (HV) Propogation delay: < 4 nS typ.
  • Sync (HV) Rise time: < 4 nS typ.
  • Sync (combined): Output follows input
  • Bit Control: Switch-selectable (individual selectorper input, pin 4, over-rides LOCAL MONITOR jack ID bit pass-thru)
  • 24 Vdc power supply current: 70 mA (idle), 90 mA(max.)  Power supply included.
  • Power supply input voltage: 100 to 240 VAC
  • Warranty: 3 Years; contact RDL technical supportdepartment for assistance
  • Case dimensions: 5.75” (14.6 cm)W x 5” (12.7 cm)D
  • Mounting size: 1/3 rack width
Surface Mount Bezel 1/3 Rack Radio Design Labs EZ-SMB2 Surface Mount Bezel 1/3 Rack

Surface mount bezel for 1/3 rack width EZ products.

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Radio Design Labs' PS-24AS is a 24 Vdc switching power supply with a North American AC plug.  500 mA, dc plug.Specifications: Input: 100 to 240 VACOutput: 24 Vdc, 500 mA (UL, CSA)Dimensions: 1.65" x 2.75" x 1.45" (4.2 x 7 x 3.7 ...

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Under Counter Bracket Radio Design Labs EZ-UCB2 Under Counter Bracket

Under counter bracket pair for all EZ product widths

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Component Chasis, 6 x 1/6 RURadio Design Labs EZ-CC6 Component Chasis, 6 x 1/6 RU

Component Chassis for 6 Increments of 1/6 Rack WidthFeatures: Mounts All EZ A/V Products Mounts EZ Storage Drawers Cover Lifts Off for Easy Product Mounting Integral Heavy-Duty Non-Skid Rubber Feet

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Our Price:$80.63List Price: $107.87You save 25%!

Rack Adapter Radio Design Labs EZ-RA6 Rack Adapter

Rack Adapter for 6 Increments of 1/6 Rack Width Mounts All EZ A/V Products Mounts EZ Storage Drawers Base Plate Slides Out for Easy Product Mounting Occupies One RU in Standard 19¨ Rack

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Our Price:$45.81List Price: $61.27You save 25%!

Desktop Chassis 1/3 RackRadio Design Labs EZ-DC2 Desktop Chassis 1/3 Rack

Desktop Chassis for 1/3 Rack Width EZ Products Mounts 1/3 Width EZ Product to Desktop Installs Quickly With Two Screws Covers Cable Port in Desktop Provides Space for Excess Wire

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Our Price:$44.36List Price: $59.33You save 25%!

Filler Panel, 1/6RU Radio Design Labs EZ-FP1 Filler Panel, 1/6RU

Filler Panel - 1/6 Rack Width for EZ-RA6 or EZ-CC6.

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Our Price:$9.31List Price: $10.98You save 15%!

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