Switchblade LPU4 vMix Replay Server with RP800 Control Surface

An Affordable 8-Channel Instant Replay and Slow-Motion System

Multi-channel instant replay systems in sports are typically limited to professional and collegiate organizations due to their high costs. However, with the advanced capabilities of vMix Replay integrated into vMix Pro software, this financial barrier is effectively removed.

Nonetheless, operating a multi-camera replay system efficiently necessitates appropriate hardware. Switchblade Systems leverages extensive experience in designing broadcast-ready production systems, and with the LPU4 vMix Replay Server, concerns regarding compatibility and reliability are largely alleviated. The LPU4, paired with the RP800 replay controller, empowers sports broadcasters at all levels, from youth leagues to high schools, colleges, and beyond, to deliver eye-catching replays.

More About the Switchblade LPU4

The Switchblade LPU4 is a compact, rackmount video switcher and replay system based on vMix Pro live production software. The LPU4 packs all the essential features and I/O for running multi-camera replays from any location.

Today’s live events rely increasingly on a combination of traditional physical inputs like SDI and IP sources, including NDI and SRT. The LPU4 handles both with equal ease, packing eight (8) 3G-SDI inputs, four (4) 3G-SDI outputs (which can also double as additional inputs, and vMix’s native support for NDI, NDI|HX, SRT, RTMP, and RTSP network video sources.

Key Features

• Live switching of SDI and network video inputs
• Includes perpetual license of vMix Pro software with 1 year of free version updates
• 8-channel replay and slow-motion playback with vMix Replay (standalone app or inside vMix)
• NDI input and output
• Up to 4096 x 2160 resolution (applies only to IP video inputs)
• 8 x 3G-SDI dedicated inputs
• 4 x 3G-SDI outputs, switchable to additional inputs
• 4 x external display outputs for user interface, multiview, and more
• 4 x overlay channels for graphics, text, images, and more
• 2 x media recorders
• ISO recording on all SDI inputs
• Simultaneous streaming to 3 destinations
• Integrates with Zoom for capturing individual participants
• GT Designer Standard and Advanced titling software included
• 8 x Remote callers with vMix Call feature
• PTZ camera control

Technical Specifications

• Form-factor: 4U rackmount/desktop
• Video Inputs: 8 x Full-sized BNC 3G-SDI inputs, up to 1080p60
• Video Outputs: 4 x Full-sized BNC 3G-SDI outputs  up to 1080p60 (switchable to inputs)
• Display Outputs: 3 x DisplayPort 1.4a, 1 x HDMI 2.1a
• Analog Audio Inputs: 1 x 3.5mm (1/8″) line level stereo input, 1 x 3.5mm (1/8″) microphone level input
• Analog Audio Output: 1 x 3.5mm (1/8″) line level stereo output
• Digital Audio Inputs: 8 x SDI stereo embedded digital audio inputs
• Digital Audio Outputs: 16x SDI embedded digital audio outputs
• Processing: 12-core Intel Core i9-14900KF processor
• Graphics: NVIDIA GeForce RTX 4070 Ti SUPER with 16GB GDDR6X VRAM
• Memory: 32GB DDR5
• Storage:
  • OS/Apps: 1TB NVMe SSD
  • Recording/Replay: 2TB NVMe SSD
  • Removable: 4 x 2.5″ SATA hot-swap drive bays
• Network: 2 x 2.5Gb/s Ethernet RJ-45 ports
• Operating System: Windows 11 Pro
• Dimensions: 17.00″ W x 16.89″ D x 6.96″ H / 432mm x 429mm x 176.78mm
• Weight: 25 lbs / 11.34 kg

More about the Switchblade RP800

The Switchblade RP800 is an eight-channel replay and slow-motion controller for vMix Replay. This full-featured control panel includes a T-bar for playback speed control, a jog wheel for scrubbing through the timeline, and multiple industry-standard replay operator buttons, including Clip In/Out, Play/Pause, two rows of 1-8 Cam/Out buttons, and 4 event shortcut buttons. The controller connects to a vMix host computer via USB for power and data, but can also transmit commands via LAN or RS-232 cable.

Key Features

• 42 high-quality, dual-color transparent LED buttons
• Based on LAN, MIDI, USB, RS-232 and other communication protocols
• Multi-channel AB, A, B camera switching
• 8 shortcut keys for multiple operations on current event of the channel
• Streamlined photoelectric slow-motion T-bar with precise control over video playback speed and playback time
• Quiet video content search knob with the entry and exit click buttons
• Presets for NOW, -5 second, -10 second, -20 second button for quick marker placement
• SHIFT button for mode toggle and NOW, LIVE button for shortcut control, achieve fast timeline switch
• Slow-motion key layout for international use
• USB integrated communication and power supply
• Ergonomic design reduces wrist fatigue caused by extended operation