Marshall Electronics Quad 4.5" Rack-Mountable Monitor Unit with 3G-SDI, HDMI & Composite (2 RU) - ML454V2

Marshall Electronics Quad 4.5" Rack-Mountable Monitor Unit with 3G-SDI, HDMI & Composite (2 RU) - ML454V2

•  Designed for Fly-Pack, Studio, or Truck Use

• Perfect for broadcast setups needing compact, high-quality multi-source monitoring

•  Quad 4.5" High-Res LCD Screens

• Four 1280 x 720 resolution TFT LCD panels

• 16:9 aspect ratio with excellent off-axis viewing

• Adjustable backlighting for different ambient lighting conditions

• Panels can be matched and calibrated with long-term consistency

•  Versatile Input/Output Options

• 4x HDMI inputs

• 4x 3G-SDI inputs with loop-through outputs

• 4x Composite (CVBS) inputs with loop-through outputs

• Stereo RCA audio inputs

• Headphone output for monitoring

•  On-Screen Tally Displays

• Red, green, and yellow tally borders for quick visual status feedback

•  Advanced Display Tools

• Center markers and safety markers

• Selectable aspect ratios

• Image flip, focus peaking, and other imaging aids

•  Durable Rack-Mount Design

• 2 RU metal housing with integrated rack ears

• Built for rack-mounted or standalone configurations

What our Experts Think

• Four Independent 4.5″ LCD Panels in 2 RU
  Quad displays provide simultaneous monitoring of multiple feeds in a compact rack form factor, ideal for studios and live production racks.

• Flexible Multi‑Format Inputs
  Each screen accepts 3G‑SDI, HDMI, and Composite (CVBS), making it compatible with a wide range of professional and legacy video sources.

• Active Loop‑Through on SDI & CVBS
  Built‑in loop outputs on SDI and composite simplify daisy‑chaining signals to other monitors or recorders without extra hardware.

• Bright, High‑Resolution Displays
  Each 4.5″ panel delivers 1280×720 resolution with a bright LED backlight and wide viewing angles for clear visibility from various positions.

• On‑Screen Tools and Tallies
  Includes 3‑color tally indicators and image controls to assist operators in live production and multi‑camera environments.

• Rack‑Ready Reliability
  Slim, 2 RU metal housing and DC power support (10–24 V) make it suitable for flypacks, OB vans, control rooms, and broadcast racks.

• Expert Verdict
  A versatile, professional quad rack monitor that delivers flexible connectivity, dependable performance, and crisp multi‑source viewing—perfect for broadcast, technical monitoring, and AV workflows.

Q&A

Q1: What is the display configuration of the ML454V2?
A: It features four 4.5-inch LCD screens in a 2 RU rackmount unit, allowing simultaneous monitoring of multiple video sources.

Q2: What input types are supported?
A: Supports 3G-SDI, HDMI, and composite inputs, offering flexible connectivity for a wide range of video sources.

Q3: Can it display multiple sources simultaneously?
A: Yes, each screen can display independent video signals, making it ideal for multi-camera monitoring.

Q4: Is it suitable for rack installation?
A: Yes, the 2 RU rackmount design fits standard 19-inch racks for studios, OB vans, and control rooms.

Q5: Are professional monitoring tools included?
A: Yes, features include waveform, vectorscope, focus assist, and exposure tools for precise video analysis.

Q6: Can it handle audio monitoring?
A: Yes, it supports embedded audio monitoring for SDI and HDMI sources.

Q7: What are typical use cases?
A: Ideal for broadcast production, live events, post-production, multi-camera monitoring, and control room applications.

Q8: How reliable is it for professional use?
A: Built for continuous operation in professional AV environments, ensuring stable performance and durability.

Q9: Does it support multiple video formats?
A: Yes, it handles HD-SDI, 3G-SDI, HDMI, and analog composite, ensuring compatibility with modern and legacy systems.

Q10: Why choose the ML454V2?
A: It provides compact, high-density monitoring with versatile inputs and professional features, ideal for efficient multi-source video oversight in rack-based setups.

Maintenance Tips

• Clean Displays Carefully
  Use a soft, dry microfiber cloth to wipe the four 4.5″ LCD panels—this preserves vivid 1280×720 screens without scratching or damaging the adjustable LED backlights.

• Keep Ventilation Clear
  Ensure rack vents and adjacent equipment don’t block airflow to avoid heat buildup during extended monitoring sessions.

• Inspect & Secure Video Cables
  Regularly check 3G‑SDI, HDMI, and composite (CVBS) cables/connections to prevent signal loss and maintain reliable loop‑through outputs.

• Stable Power Supply
  Use a reliable 12 V DC source or UPS to protect the unit and maintain consistent performance.

• Avoid Physical Impact
  Handle the monitor gently during installation and service—LCD panels are delicate, and impacts can affect calibration.

• Manage Cable Slack When Tilting
  Allow sufficient cable slack to prevent strain on connectors when adjusting rack tilt angles.

• Regular Input Selection Checks
  Cycle through HDMI/SDI/CVBS sources to verify each input channel is working and free from intermittent issues.