Marshall Quad 4.3" Rack Mount Monitor - OR-434
The OR-434 Quad 4.3" ORCHID rack mount monitor has all the features that customers have asked for and more. The OR-434 is only 2RU and has 5 user-assignable function keys with a joystick menu system.
The built-in waveform monitor (which includes adjustable White and Black clip level indicators) can be displayed in three different aspect ratios including Full Screen.
The built-in Vectorscope displays in full color and can also be displayed in three different ratios. The Vectorscope has adjustable gain from 1x to 5x.
All screens are color matched at the factory and can be auto-adjusted in the field using an optional color probe system.
The OR-434 will de-embed and display up to 16 channels of audio and allow the user to monitor any two channels at once through the headphone jack or rear line output jack. The 64-segment tri-color bar graph meters have user-adjustable reference levels. The OR-434 comes standard with auto-sensing HD-SDI inputs, re-clocked outputs, and an open modular slot for additional inputs in the future.
- (4) 800 x 480
- 400:1 Contrast Ratio
- 200 cd/m² Brightness
- Built-in Waveform Monitor & Vectorscope
- Real-Time Waveform Monitor
- Real-Time Color Vectorscope
- Sixteen 64-segment Tri-color Audio Meters
- Tri-Color Tally Indicator
- On-Screen Time Code
- 7 assignable GPI inputs
- Adjustable Color Temperature
- Optional Input Modules
- Auto-Sensing Front Panel Headphone Jack
- Auto-Sensing Rear Unbalanced Stereo Output
- Adjustable Clipping Indicator
- Precision Gamma Settings
- Adjustable Color Temperature
- Variety of Safety Markers
- HD-SDI / SDI Inputs and Outputs
- Automatic Color Calibration with ORCHID Color Probe
What our Experts Think
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Professional quad‑screen monitoring in a compact rack form
The Marshall OR‑434 Quad 4.3" Rack Mount Monitor offers four 4.3″ LCD panels in a 2RU chassis, giving engineers simultaneous views of multiple SDI feeds with clear 800×480 resolution per panel.
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Built‑in broadcast analysis tools
Integrated waveform monitor and vectorscope provide real‑time signal diagnostics without external equipment, speeding up setup and troubleshooting on the fly.
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Advanced audio & video monitoring
Displays up to 16 channels of embedded audio, with front headphone and rear output monitoring, plus clip guides, safety markers, adjustable gamma/color temp, and tally indicators.
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Flexible connectivity & expansion
Includes auto‑sensing HD/SD‑SDI inputs with re‑clocked outputs and modular slots for optional future input formats—making it adaptable to evolving system needs.
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Compact yet robust build for operations
The rugged rack‑friendly design fits easily into broadcast trucks, control rooms, and post racks while delivering consistent performance.
Q&A
Q1: What is the Marshall Electronics OR‑434 Monitor?
A professional 2‑RU quad 4.3″ LCD rack‑mount monitoring system for multi‑source video signal viewing and analysis.
Q2: How many screens and what resolution?
It features four 4.3″ LCD panels, each with 800 × 480 resolution and 200 cd/m² brightness with 400:1 contrast.
Q3: What video inputs are supported?
Standard auto‑sensing HD‑SDI/SD‑SDI inputs with re‑clocked outputs; modular slots allow optional input formats.
Q4: What professional monitoring tools are built in?
Includes real‑time waveform monitor, vectorscope, clip guide, safety markers, adjustable gamma/color temperature, and on‑screen data.
Q5: Can it monitor audio?
Yes — de‑embeds up to 16 audio channels with 64‑segment tri‑color audio meters and simultaneous headphone plus line outputs.
Q6: Is it configurable for different workflow needs?
Yes — open modular input slots allow future expandability for different signal types.
Q7: Where is this ideal?
Perfect for broadcast control rooms, OB vans, post‑production suites, and multi‑camera monitoring setups.
Maintenance Tips
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Screen Cleaning
Use a microfiber cloth to remove dust and fingerprints without scratching the 4.3" display.
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Check Signal Connections
Inspect SDI/HD connections regularly for secure fit and uninterrupted quad-view monitoring.
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Maintain Ventilation
Ensure proper airflow in the rack to prevent overheating during extended operation.
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Firmware Updates
Apply the latest updates to maintain compatibility with cameras and video sources.
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Power Protection
Use a stable power supply or UPS to prevent damage from surges or outages.
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Cable Management
Organize input and power cables to reduce wear and accidental disconnections.
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Calibration
Periodically adjust brightness, contrast, and color for accurate multi-camera monitoring.
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Secure Rack Installation
Mount properly to avoid vibration or impact that could damage the monitor.
