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Datavideo AD-300 Pro Audio Delay Box with LCD Display and 3000 MS Audio Delay Range

  • mfr: AD-300
  • SKU: AD-300
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Product highlights

  • Equipped with a wide range of input and output interfaces
  • Professional-grade sound and video synchronization
  • Fulfills the needs of professional audio production
  • Sound delay, mixing, equalizer, compressor, and limiter
  • 3 XLR balanced stereo inputs
  • 2 RCA unbalanced stereo inputs
  • 3000 ms audio delay range
  • Limited controls the maximum volume of the entire track
  • LCD display for OSD menu and mode selection
  • Training videos with Datavideo Academy

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Datavideo AD-300 Pro Audio Delay Box with LCD Display and 3000 MS Audio Delay Range

A professional sound delay box that meets the needs of multiple functions. The Datavideo 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.
Wide Range Of Input Options
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.
Sound Delay Range
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.
Built-in Mixing Function
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.
Equalizer for Adjusting Timbre
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 a 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 negative 66 dBu to 25 dBu.
Audio Filter
Filters are being used to remove groups of frequencies from an audio signal. A 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.
Balanced and Unbalanced Audio Conversion
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. Mic in with 48V phantom power. Switchable for Microphone input or Audio Line input and Supports XLR mic in and 48V phantom power.
Easy-to-Use Design
LCD display for OSD menu and mode selection. The body design is suitable for stand-alone or installation in the rack.
Tutorial Videos
Datavideo Academy is a comprehensive learning platform established by Datavideo Technology. As a professional Broadcast and AV equipment manufacturer, Datavideo Technology is not only committed to providing quality products to users but also has the responsibility to help users learn to operate Datavideo products. Through the Datavideo Academy platform, users can easily master the operation of Datavideo products and experience the unique design of Datavideo products, further creating a variety of applications and bringing a good user experience. Now, a tutorial video for the AD-300 is available at Datavideo Academy to help you get the best performance out of the product.


Display LCD
High-Pass Filter Yes
Solo/Mute None
Gain Adjustment No
Mic Input 1-Pin XLR


Customer Questions
No Questions


Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

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Datavideo AD-300 Pro Audio Delay Box with LCD Display and 3000 MS Audio Delay Range SKU: AD-300

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