SKU: 16153790261

Lumagen Radiance Pro 4242+ Ultra-HD, 4(18G)x2(9G). 1U rack ears included

Sale price$7199.55 Regular price$7999.50
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Lumagen Radiance Pro 4242+ Ultra-HD, 4(18G)x2(9G). 1U rack ears includedRadiance Pro4k60 Video Processor See What the Director Intended The Radiance Pro series supports 4k60 inputs, and outputs, including HDCP 2. 3, HDR10, and HLG, and is compatible with Dolby LLDV sources. Winner of a Home Cinema Choice Best of 2021 award, and a Best Video Product award in Australia in 2021, the Radiance Pro is not standing still. Lumagen is adding to its 22 year legacy of video processor development by continuing to enhance features and

Radiance Pro™4k60 Video Processor

See What the Director Intended ™

The Radiance Pro™ series supports 4k60 inputs, and outputs, including HDCP 2.3, HDR10, and HLG, and is compatible with Dolby® LLDV™ sources. Winner of a Home Cinema Choice™ Best of 2021 award, and a Best Video Product award in Australia in 2021, the Radiance Pro is not standing still. Lumagen is adding to its 22-year legacy of video processor development by continuing to enhance features and algorithms, and adding a single-input, single-output model for those who would like to place the Radiance Pro after the AV switching.

The Radiance Pro series of video processors offers up to ten inputs, four outputs, and a multitude of video processing, setup, and calibration features. Much more than an HDMI switcher, the Radiance Pro has a host of features to improve the image on your screen. It is considered by many experts to be an essential part of any quality home cinema.

Optimizing HDR content has perhaps become the most important video processing feature. The Radiance Pro Dynamic Tone Mapping (DTM) analyzes multiple regions of every frame of content, detects scene changes, and optimizes the image for each frame of content. Jon Thompson, a movie producer who is responsible for post-production image quality at a major studio, recently evaluated the Radiance Pro DTM versus the other options. He said that “the other DTM options are not even in the same league as the Radiance Pro.”

Scaling quality again comes to the forefront with the 4k projectors and televisions. It should be intuitively obvious that home cinema scaling must be evaluated at viewing distance using actual moving image video content. The Tektronix PQA600C quantitative image analysis program is used by major studios and broadcast networks and includes 30 years of development by perception physicists. It includes viewing distance in its evaluation of scaling. The Radiance Pro has the industry’s best motion picture scaling and scores more than 20% higher than the competition using the Tektronix analysis software. Lumagen’s scaling provides the best quality scaling for 1080, 720, and SD, sources for 4k projectors and TVs. Scaling is also essential for aspect-ratio control, especially when using an anamorphic lens. In addition, the Radiance Pro has an edge-sharpening feature that helps restore detail lost during compression of the digital content.

Minimizing signal jitter is an extremely important criteria for HDMI. The Radiance Pro 5XXX series HDMI output clock jitter has been measured at about 10 pS. This is an ideal clock to send to the audio processor to minimize jitter at the DACs. Reduced jitter at the DAC reduces distortion. Lumagen has many reports of the 5XXX significantly improving audio due to this ultra-low jitter HDMI output.

Reference quality colorimetry is often overlooked as part of a high-end home theater. The Radiance Pro can provide automated video equalization, using third party calibration software, with more accuracy than calibration without a 3D LUT. Using the Radiance Pro’s DTM, and Color Management System, you can See what the director intended™.

Other features include image-based instant-auto-aspect detection and selection for HD, 3D, and 4k UHD and HDR sources. Anamorphic support with, or without, an anamorphic lens. Image based auto-aspect selection, plus precise geometry adjustments including size, and masking, are available. The Radiance Pro’s Non-Linear-Stretch (NLS) feature allows the user to stretch 16:9 content to fill an anamorphic screen using their preferred settings. For 16:9 screens and TVs, an anamorphic image can be placed anywhere in the active screen area, or with zoom, and/or cropping, can fill a larger portion of the screen. Multiple configuration memories allow for different independent configurations, such as day, night, sports, and black-and-white.

The adaptability of the Radiance Pro is second to none. Using Field Programmable Gate Array (FPGA) technology, the Radiance Pro can add hardware image processing and setup features long after installation. The Radiance Pro is adding new features over time. One example is HDR Dynamic Tone Mapping was added four years after product introduction and is available to all Radiance Pro owners by simply updating to the latest free release.

Radiance Pro Models:

4140: In: 1 – 18G, Out: 1 – 9G, 1U compact case 

4240-18G: In: 2 – 18G, Out: 1 – 18G, 1 – Audio, 1U case

4242-18G: In: 4 – 18G, Out: 1 – 18G, 1 – Audio, 1U case

4244-18G: In: 6 – 18G, Out: 1 – 18G, 1 – Audio, 1U case

4246-18G: In: 8 – 18G, Out: 1 – 18G, 1 – Audio, 1U case

4444-18G: In: 6 – 18G, Out: 2 – 18G, 2 – Audio, 1U case

4446-18G: In: 8 – 18G, Out: 2 – 18G, 2 – Audio, 1U case

5244: In: 6 – 18G, Out: 1 - 18G, 1 – 9G, 1U case

5348: In: 10 – 18G, Out: 2 – 18G, 1 – Audio, 1U case

Includes:

  • Remote Control

  • Universal power supply

  • USB cable for updating

  • Manual

  • Limited 2 year warranty, Extendable to 5 Years

  • Optional 18Ghz input card(s)

  • Optional 18Ghz output card(s)
    18Ghz output card has 1 video+audio and 1 audio out
    versus 2 video+audio outputs of 9Ghz output card

  • Rack ears included for rack mountable models

Key Features

  • HDMI 2.0 4k60 Input & Output
  • 12-bit 4:2:2 Video Pipeline
  • Automatic Aspect Ratio Detection & Selection
  • Industry’s Best Dynamic Tone Mapping for HDR Content with Accurate Color Rendition when compared to Studio Masters
  • Best Quality Scaling for In-Motion Content
  • True Genlock:
    Each Input Frame is Output Exactly Once
    Optimal Lip-Sync
    Game Mode (3 mS video delay) with all Processing Enabled
  • Programable Video Delay
  • Fast Source Switching
  • Darbee Vision Enhancement
  • Compatible with Dolby® LLDV™
  • As measured by Tektronix® (HDMI 2.1 FRL):
    Low Output Electrical Noise
    Low HDMI Output Jitter with 4XXX Models
    Ultra Low Output Jitter with 5XXX Models for Improved Audio Quality
  • Non-Linear-Stretch
  • Directly Control Seymour Screen Excellence Screen Masking
  • Additional Customization Features
  • Rec2020 colorspace and HDR supported
  • Housed in a 1U Rack Mountable Case (Some models available in Compact Case)
  • Free Software Updates Continue After Purchase
  • 2 Years Limited Warranty, Extendable to 5 Years

Reviews

"Reference status picture processing with a wealth of controls and futureproofing potential. Worth the outlay for high-end systems, but installation isn't for the AV novice.:

-HCC

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16153790261

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4.2 ★★★★★
Based on 24 reviews
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Product Reviews
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Verified Purchase
GritWork
Port Orchard, US
★★★★★ 5
Real walnut wood. High quality.
Color: Walnut Wood, Size: Large, Color: Walnut Wood, Size: Large
This is authentic walnut wood. I was apprehensive at first. My fear was that it was pine stained to the color of walnut. I thought the wood stain would come off on my wrists and wear over time. Turns out this is a genuine chunk of walnut! Worth the $20. I laser engraved my logo onto it and it revealed that it’s 100% walnut to the core. Elegant solution. Perfectly comfortable. Way less corny than those squishy wrist rests from the 2000’s. Nice rubber gaskets on the bottom to keep it from slipping. Does not move while in typing. The exact right size for supporting your wrist on a full size Keychron keyboard. I’m using it with a P6 Ultra. But it would fit any full size Keychron keyboard.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 23, 2026
T
Verified Purchase
The Cannish
Grantham, US
★★★★★ 5
Surprisingly comfortable and stylish wrist rest!
Color: Walnut Wood, Size: Large
This wrist rest is the perfect compliment to my desk set up. I was hesitant about buying a wood product like this, but I’ve been pleasantly surprised how comfortable and smooth it is during extended use. For the price, it feels like a premium product, and I love that it stays put with the rubber feet. The size is perfect for a full-size keyboard, with just the right thickness to keep your wrist and palms comfortable. If you’re looking for an elevated way to decorate your desk while protecting your wrist, this is a great choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
T
Verified Purchase
Thomas Wells
Louisville, US
★★★★★ 5
Great wrist rest with a modern look!
Color: Walnut Wood, Size: Medium, Color: Walnut Wood, Size: Medium
This is a great looking addition to my desk. It’s a just the right length to fit my keyboard and I love the walnut coloring! It’s real wood and has nice rubber feet on the bottom to keep it from moving around. The angle is nice for my wrists and it’s easy to clean with just a damp cloth. If I ever wear this one out (which I doubt) I’d buy another!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
E
Verified Purchase
Elektra
Battle Creek, US
★★★★★ 5
Super comfortable - much better than memory foam wrist rests!
Color: Walnut Wood, Size: Large, Color: Walnut Wood, Size: Large
Get this wrist rest - you won't be disappointed. Had ergonomic keyboards and have tried memory foam rest in the past and this is much better. Smooth wood, perfect height and very supportive to keep wrists in neutral position when typing. Got the 17.3" and like that there's ample room to not feel squashed, but probably could have done with the medium length. Great angle for my mechanical keyboard. Love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
J
Verified Purchase
James M.
Alexandria, US
★★★★★ 4
What an excellent wrist rest! Except for this one thing....
Color: Walnut Wood, Size: Large
This is a solid piece of wood with great quality. Fantastic large rubber grips on the bottom (left and right sides only). Pro: I use it for editing and gaming. And though I thought the wood might be a bad choice in the long run, it turns out it's pretty nice. Not as comfortable as a gel rest but I knew what I was getting when I ordered it. I buy things for function AND aesthetics. I love how this looks. The uniqueness is really something. I got the natural one instead of the black so that the grains and lines can be easily seen. Con: Unfortunately, after almost 2 months, the wood has warped some. Not enough to effect my typing but, enough that I notice it. The warp is the kind where the opposite angled corners go up and down. While the other 2 corners are fine. In my case, the top left and bottom right, when pressed independently, rock the wrist rest. The top right and bottom left stay grounded. This is why I took a star off. Because there's no way this should be happening. So, looks and quality are up there. The rubber grips are solid. Why it's warping is puzzling to me. NO liquid wasted on it. Or, extreme temperature changes have happened. I've made sure the rubber grips. And that the surface the rest sits on (a glass mouse scrolling top by Superglide) is clean. Yet, I get this slight rocking. It bugs me this all happened right after the return window closed. I would've simply exchanged it. I love it too much. I mean, this is, again, a SOLID piece of wood. Maybe this won't happen for everyone. I mean, it's wood. Eh I would still recommended this regardless.
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Reviewed in the United States on November 24, 2025

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