SKU: 35674635147

Datavideo AD-300 Pro Audio Delay Box

Sale price$15433.20 Regular price$17148.00
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

Datavideo AD-300 Pro Audio Delay BoxThe AD 300 is equipped with a wide range of input and output interfaces and sound processing functions to fulfill the needs of professional audio production. The input audio source can be processed for sound delay, mixing, equalizer, compressor, limiter and other sound effects. The AD 300 is equipped with a wide range of input and output interfaces. 3 XLR balanced stereo inputs and 2 RCA unbalanced stereo inputs; the output provides two channels of

The AD-300 is equipped with a wide range of input and output interfaces and sound processing functions to fulfill the needs of professional audio production. The input audio source can be processed for sound delay, mixing, equalizer, compressor, limiter and other sound effects.

The AD-300 is equipped with a wide range of input and output interfaces. 3 XLR balanced stereo inputs and 2 RCA unbalanced stereo inputs; the output provides two channels of XLR and RCA.

The AD-300 professional audio delay device has a 3000 ms audio delay range, and each input can be adjusted individually in milliseconds to achieve professional-grade sound and video synchronization. The built-in mix function allows you to select any of the five input sources that you want to mix and combine them into a single output channel. A Test Tone can be added for volume correction. 

You can set a specific frequency range and then adjust the volume of that specific frequency range only. The equalizer of AD-300 can adjust each channel from 125Hz to 16K Hz in 8 frequency ranges, each adjustable by ± 10 dB, to produce the various tone effects you want.

The Compressor reduces the level of the high volume sound signal and maintains the original level of the low volume sound signal, thus reducing the dynamics range of the sound signal and adjusting the rise and fall of the audio track. The AD-300's compressor can achieve a 100:1 compression ratio (Ratio), and the Attack time can be adjusted from 50 to 500 msec, allowing you to adjust the audio dynamic range to your ideal.

Limiter is a function used to limit the dynamic range and is often used in combination with Compressor. It controls the maximum volume of the entire track and is adjusted at the end of Mastering. The Threshold range of the AD-300's Limiter is +24dBu to -6dBu, and the Attack time can be selected from 50 to 500ms.

The Expander is the opposite of the Compressor and is used to expand the dynamic range of the sound, making the louder and quieter parts of the Threshold range louder and quieter, respectively. The Expander can be used to make more noticeable changes in the volume of instrumental music or vocals.

If the volume is less than the set threshold range, it will be muted to silence, which is the function of the gate. Gate is mainly used to remove unwanted audio. For example, it can be used to eliminate the breathing noise of the vocal sounds. The Gate threshold of the AD-300 can be adjusted from -66 dBu to -25 dBu.

Filters are being used to remove groups of frequencies from an audio-signal. High-pass filter cuts out all frequencies below a user-determined cutoff point. And low-pass filter cuts out all frequencies above a user-determined cutoff point. 

The built-in balanced or unbalanced audio conversion prevents under-volume or popping in case of misuse. When unbalanced and balanced audio conversion is required

When unbalanced and balanced audio conversion is required, the AD-300's audio conversion function will ensure that the sound output matches the desired format. Switchable for Microphone input or Audio Line input and Supports XLR mic in and +48V phantom power.

LCD display for OSD menu and mode selection. The body design is suitable for stand-alone or installation in the rack.

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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: 35674635147

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Mauro
Birmingham, US
★★★★★ 5
Best
Size: 10, Color: Espresso II/Black
The best flop ever made
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
J
JA Cook
Fort Morgan, US
★★★★★ 5
Best flip-flops I've met
Size: 11, Color: Black/Geyser
Right away I was impressed by the thichness and cushioning of these flip-flops. They are not a flimsy piece of rubber under my foot. The sole is more like that of an athletic shoe with layers and an impressive tread. I've always found that my heel sits too much on the back edge of flip-flops, or even over it. So I ordered these just a half size large and they're perfect. The foot cradling allows my heel to sit down inside the flip-flop comfortably and securely. They're not about to fall off. The toe piece (I don't know what it's actually called) is not just the typical round rubber post. On these flip-flops it's nicely shaped and fits comfortably between my toes. The arch support is nice too. They're not just flat. In spite of being more substantial than the cheapies we all know, these remain lightweight. They clearly look better too
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Reviewed in the United States on April 28, 2026
A
A1 reviewer
Charlottesville, US
★★★★★ 5
Well made
Size: 11, Color: Black/Geyser
The first thing that stands out about the Columbia PFG Castback Flip sandals is the solid build and clean fishing-inspired design. The Black/Geyser color combination looks sharp and matches the product photos well. The straps feel durable and comfortable against the foot, and the footbed has a slightly cushioned feel that makes them comfortable right out of the box. Overall construction feels sturdy, which is what you’d expect from something designed for outdoor or water use. In everyday wear, the sandals are comfortable and easy to walk in. The footbed provides decent grip and support, and the textured surface helps keep your foot from sliding around when they get wet. They work well for casual use, whether it’s around the house, at the beach, or after a day on the water. The lightweight feel also makes them easy to pack for trips or outdoor activities. After wearing them for a while, they hold up well and remain comfortable for daily use. The materials seem durable and the straps stay secure without stretching out. They’re simple, reliable sandals that work well for warm weather, boating, or casual summer wear. Overall, they’re a solid choice for anyone looking for comfortable flip flops with a slightly more rugged outdoor style.
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Reviewed in the United States on March 10, 2026
N
Nikki
Waukegan, US
★★★★★ 5
Extremely comfortable with slight roomy fit
Size: 11, Color: Black/Geyser, Size: 11, Color: Black/Geyser
These are easily the most comfortable flip flops I have ever owned. From the moment I put them on, there was no break in period at all. They felt soft, supportive, and ready for all day wear right out of the box. The cushioning is excellent without feeling too soft, and they have a nice stable feel when walking. They are lightweight and clearly made with quality materials, making them great for everyday use or around water. One thing to note is that they run a little on the larger side, so if you are between sizes, you may want to consider sizing down for a better fit. Overall, these are a great combination of comfort, durability, and function. I would absolutely recommend them, especially if comfort is your top priority. (Excuse the teeth marks- my dog unfortunately got ahold of them before I snapped the photo- they are PERFECT out of the box)
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Reviewed in the United States on March 22, 2026
D
Daniel S
New York, US
★★★★★ 5
Comfortable Flip-Flops with a Clean, Sporty Look
Size: 13, Color: Black/Geyser
I picked up the Columbia Men’s PFG Castback Flip in the black and white colorway, and the first thing I noticed was how comfortable they felt right out of the box. How They’ve Been Used: Even though it’s still winter, I’ve been wearing them around the house occasionally to get a feel for the fit and comfort. I plan to use them more regularly outdoors once the weather warms up. What Worked Well: Immediate Comfort: The footbed feels cushioned and supportive without needing a break-in period. Secure Fit: The straps sit comfortably without rubbing or feeling stiff. Lightweight Design: Easy to slip on and off for quick wear. Clean Style: The black and white combination gives them a sharp, versatile look. Positive Feedback: My wife has already commented on how good they look. Things to Keep in Mind: Seasonal Use: Best suited for warmer weather and casual settings. Sizing: Checking the size guide helps ensure the right fit. Bottom Line: Based on my experience so far, these flip-flops offer a great balance of comfort and style. They’re comfortable enough for everyday wear and look sharp enough for casual outings. I’m looking forward to putting them to full use once spring arrives.
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Reviewed in the United States on February 27, 2026

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