SKU: 35394098310

Kramer 1:20 Composite/SDI Video Distribution Amplifier

Sale price$299.67 Regular price$332.97
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Description

Kramer 1:20 Composite/SDI Video Distribution AmplifierThe Kramer VM 1021N is a high performance distribution amplifier engineered for both composite video and SD SDI signals. Designed to meet the demands of professional AV, broadcast, and digital signage deployments, this unit ensures reliable signal distribution with smart, controllable compensation for the inevitable losses that occur in long cable runs. With its robust bandwidth, adjustable gain and peaking equalization, and convenient looping input,

The Kramer VM-1021N is a high-performance distribution amplifier engineered for both composite video and SD-SDI signals. Designed to meet the demands of professional AV, broadcast, and digital signage deployments, this unit ensures reliable signal distribution with smart, controllable compensation for the inevitable losses that occur in long cable runs. With its robust bandwidth, adjustable gain and peaking equalization, and convenient looping input, the VM-1021N delivers consistent picture quality across multiple outputs, making it an essential component in any professional video backbone. Whether you’re upgrading an existing installation or building a new system from the ground up, this compact amplifier provides the flexibility and reliability needed to keep every display synchronized, bright, and sharp.

  • Versatile signal support: The VM-1021N accepts both composite video and SD-SDI signals, enabling seamless integration with legacy equipment and modern digital gear in a single, compact unit. This flexibility reduces the need for multiple adapters and simplifies your signal chain, saving time on setup and testing while maintaining pristine video quality.
  • High bandwidth for peak performance: With a bandwidth specification of 350 MHz (-3 dB), the amplifier preserves high-frequency content and sharpness, minimizing edge artifacts and color smearing across long cable runs. This bandwidth headroom helps ensure that even demanding sources with fine detail stay crisp at the display end, providing reliable performance in busy AV environments.
  • Gain and EQ controls for precise compensation: The VM-1021N provides grouped level (gain) and equalization (peaking) controls, allowing operators to compensate for attenuation and distortion introduced by long cables. By adjusting these parameters, you can balance output levels across channels and recover lost high-frequency content to deliver consistent brightness and contrast across multiple displays, even when cables vary in length.
  • Looping input simplifies daisy-chaining: The looping input lets you feed the signal onward to additional devices without re-terminating or re-cabling. This feature is ideal for AV installations where multiple screens or devices must receive the same source, reducing clutter and preserving signal integrity through a simple, reliable loop-through path that scales with your system.
  • Selectable input signal and rugged build: The VM-1021N includes a selectable input signal option, enabling you to choose between composite video and SD-SDI based on your source. Built for professional use, the unit features robust connectors and a compact, rack-friendly footprint that fits easily into standard AV racks and cabinets, keeping installations tidy, accessible, and easy to service.

Technical Details of Kramer VM-1021N

  • Bandwidth: 350 MHz (-3 dB)
  • Input: 1 input with looping capability
  • Outputs: Multiple outputs for reliable distribution to multiple displays or devices
  • Signal types: Supports composite video and SD-SDI; selectable input signal
  • Gain and EQ: Grouped level controls and peaking EQ to compensate for cable losses
  • Physical design: Compact, rack-mountable form factor suitable for professional installations
  • Loop-through: Looping input for easy daisy chaining without extra adapters
  • Power: External power supply required (specifications vary by SKU)

How to install Kramer VM-1021N

  • Plan your signal path: Determine which devices will receive the composite and SD-SDI outputs, and identify the longest cable runs where attenuation will be most noticeable. This planning helps you set the gain and EQ so every path remains consistent from source to display.
  • Connect the input: Attach your chosen source to the VM-1021N’s input connector, selecting the appropriate input signal type (composite or SD-SDI) using the unit’s controls or switch, as specified in the user manual.
  • Wire the outputs: Run individual cables from the VM-1021N’s outputs to each destination display or device. If you need to feed additional gear, use the looping input to daisy-chain without disturbing the main distribution path, keeping wiring clean and organized.
  • Adjust the controls: Use the grouped gain control to set the overall output level for each path and the peaking EQ control to compensate for high-frequency loss along the cable. Make small adjustments, then test each route for brightness, sharpness, and color accuracy across devices.
  • Power and verify: Connect the external power supply, power up the unit, and verify that all outputs carry clean video with synchronized timing. If you observe minor artifacts or drift, fine-tune the gain and EQ settings or adjust routing to minimize interference.

Frequently asked questions

  • Q: What signals does the Kramer VM-1021N support? A: It supports both composite video and SD-SDI signals, with a selectable input type to match your source material.
  • Q: How does the VM-1021N compensate for signal loss? A: It provides grouped gain control and peaking EQ to restore high-frequency content and maintain consistent output across longer cable runs.
  • Q: Can I daisy-chain multiple displays from a single input? A: Yes, the looping input enables easy daisy-chaining, while multiple outputs distribute the signal to several devices.
  • Q: Is the VM-1021N rack-mountable? A: Yes. The unit is designed for professional installations with a compact, rack-friendly form factor that fits standard AV racks.
  • Q: What power is required? A: The VM-1021N uses an external power supply; check the SKU for power adapter details included in your package.
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: 35394098310

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4.1 ★★★★★
Based on 16 reviews
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sarah b
Charlottesville, US
★★★★★ 4
Stick format is thick and difficult to rub in moderate climates
Style: SPF 50, Size: 1 count (Pack of 1)
I wanted to like it because the small stick format seemed very convenient to keep in my bag for emergency sunscreen reapplication with no chance of leaks. But I think I have learned my lesson about stick sunscreen - in order to hold together in a stick, it has to have a thick and chalky consistency. Which makes it hard to apply and hard to rub in. It's so thick that if I rub the stick over my entire face it feels like I'm applying way too much with a super heavy white cast, and if I dab here and there and try to spread it around, it's so thick it doesn't feel like it spreads into good coverage. The scent is fine. Update: I have found a specific use case for this - in extreme UV conditions like the equatorial tropics in midsummer, it's a good base layer under a more liquid mineral sunscreen, to add extra protection to the most exposed skin, like tops of shoulders, chest, nose and top of forehead. The thickness makes it protect better. It also softens a little and rubs in better in hot temps.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
H
Verified Purchase
hilary
Whiting, US
★★★★★ 5
Needs to be warmed, but works great for quick face re-application
Style: SPF 50, Size: 1 count (Pack of 1)
I love mineral sunscreen, it really works the best. But I also do not love mineral sunscreen because it's hard to apply. I don't think it matters what you do, they're just always difficult to apply and always leaving the white. This one isn't much different. I'm a scuba diver and my face sunscreen is washed off quickly doing multiple dives. I also get a weird "mask sunburn" if I don't reapply... but since I'm a diver I can't bring myself to buy or wear sunscreen that's not reef safe into the ocean. I was unsure if this would work because it's pretty solid. I threw it in my bag and once the sun warmed it up a little, I was able to apply it fairly easily between dives. I don't think it works unless it's warmed a bit first, but I like it for this purpose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 26, 2025
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Verified Purchase
Trevor Vicars
West Palm Beach, US
★★★★★ 5
Good sunscreen
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
It works and it's vegan what's more to say. I repurchase this often.
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Reviewed in the United States on December 12, 2025
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nphoton
Waukegan, US
★★★★★ 3
I Wanted to Like It
Style: SPF 50, Size: 1 count (Pack of 1)
I really wanted to like it because of the great reviews it gets with backpackers and generally with people that don't like "greasy hands syndrome" after applying sunscreen. But after using a stick I found that it's just not that good. The good: small, lightweight container. Not greasy. Good protection, I was in the sun all day hiking multiple days straight and only put on sunscreen twice per day and I didn't have any burning... and I burn easily. The bad: Value: the $12.53 sunscreen container only lasted about 8 days. And that was just my arms, neck, and half my face since I wore a shirt and long pants and a wide brim hat every day when hiking. I would expect this amount of sunscreen to last a lot longer than that on such a limited area. I'm not a big person either. Application, chafing: it's the opposite of greasy, almost chalky. You use the stick to apply to your skin in stripes, then you have to "blend it in" by rubbing with the backs of your hands so your palms don't get chalky. Since the stick is so dry this requires a fair amount of force and it chafes as you rub it around. When your skin a bit sandy it hurts. Application, crumbling: on a chilly but sunny morning, about 45 F, I applied sunscreen and small chunks of the stick crumbled off. I watched precious chunks of the already overpriced sunscreen drop to the ground. Residue: while it's not greasy, it's physical sunblock so it gives your skin the characteristic whitish sparkle. That's to be expected. But what I didn't foresee is it will rub off on anything your skin touches. My gear had white chalk-like marks (technically titania powder?) on my shirt collars, backpack straps, sunglasses, and a few other high-touch items. Overall I think it's a neat idea. I'm not overly disappointed with my purchase. But for $12.50 I expect sunscreen to be easier to apply and for the container to last longer than about 8 days. I can't burn $50/month in the summer months when a single container of chemical sunscreen will do the job. Pro tip: you can buy food-safe 3 oz TSA travel containers. Load one of those up with chemical sunscreen and you have something that beats this in every way except for the greasiness, which you can mitigate by picking a lower SPF sunscreen (the 30 SPF you wear is infinitely better than the 50 SPF you skip!).
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Reviewed in the United States on May 2, 2025
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Verified Purchase
D. Collins
Lexington, US
★★★★★ 5
sunscreen does its job
Style: SPF 50, Size: 3 Fl Oz (Pack of 1)
Works well. Took a little more effort to rub into skin.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026

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