Datavideo AD-300 Pro Audio Delay Box
SKU: 91445340274

Datavideo AD-300 Pro Audio Delay Box

$620.55 $689.50
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Description

Datavideo AD-300 Pro Audio Delay BoxGet multiple audio sources in sync with your video, using the AD 300 Pro Audio Delay Box from Datavideo. This multifunction sound box offers 5 x input channels: a pair of RCAs, a pair of XLR 1 4" combo inputs, and an additional XLR 1 4" input on the front panel. The combo inputs feature mic and line level switches along with phantom power switches to provide +48V phantom power for condenser microphones. The unit offers a built in mixer to route the

Get multiple audio sources in sync with your video, using the AD-300 Pro Audio Delay Box from Datavideo. This multifunction sound box offers 5 x input channels: a pair of RCAs, a pair of XLR-1/4" combo inputs, and an additional XLR-1/4" input on the front panel. The combo inputs feature mic- and line-level switches along with phantom power switches to provide +48V phantom power for condenser microphones. The unit offers a built-in mixer to route the incoming signals to a pair of stereo outputs with both balanced XLR and RCA connections to choose from. The 3.5mm front-panel headphone jack provides quick monitoring.

Each channel on the AD-300 offers a digital delay adjustable from 0 to 3000 ms, allowing you to get professional synchronization from multiple sources. In addition, each channel offers a compressor, limiter, expander, and gate, allowing you to tame audio levels and reduce noise for more professional-sounding results. High-pass and low-pass filters along with an 8-band EQ on every input provide precise control over frequency content, giving you additional audio-sculpting power.

  • A five-channel audio mixer matrix mapping the inputs to two audio output channels
  • Supports up to three-second delay for each audio input channel
  • Built-in balanced and unbalanced audio conversions
  • Audio processors: Compressor, Limiter, Gate, Expander, Filter, and Equalizer
  • Volume adjustment for each audio input channel
  • Audio gain control
  • Test tone for volume correction
  • Microphone and audio line composite input
  • Supports XLR mic input and +48V phantom power
  • LCD display for OSD menu and mode selection
  • Easy-to-read color metering
  • Rack-mountable desktop design

Features

  • For Sound and Video Synchronization
  • Built-In Mixer with 5 Input Sources
  • 2 Audio Output Channels
  • Up to 3000 ms Delay
  • 8-Band EQ per Channel
  • High-Pass and Low-Pass Audio Filters
  • Compressor, Limiter, Expander & Gate FX
  • Balanced/Unbalanced Audio Conversion
  • Mic Inputs with +48V Phantom Power
  • LCD Display, Rack-Mountable

Specifications

Display
2" LCD Screen
Audio Input
3 x Combo XLR-1/4" Balanced Mic/Line Inputs
2 x RCA Line Inputs
Audio Output
2 X XLR Balanced Outputs
2 x RCA Outputs
3.5 mm Stereo Headphone Output
Display
2" / 5 cm LCD Screen
Audio Delay
0 to 3000 ms
Audio Sample Rate
48 kHz
Special Features
Compressor
Limiter
Gate
Expander
Filter
EQ
Chassis
Tabletop, Rack-Mountable with RMK-1 Rackmount Kit
Power
12 VDC, 13.8 W
Operating Temperature
32 to 104° / 0 to 40° C
Dimensions
8.1 x 9.3 x 1.8" / 205 x 235 x 45 mm
Weight
2.7 lb / 1.3 kg
Packaging Info
Package Weight
4.07 lb
Box Dimensions (LxWxH)
11 x 10.3 x 5.2"
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: 91445340274

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4.4 ★★★★★
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G123
Whiting, US
★★★★★ 5
It works well.
Size: 8 Fl Oz (Pack of 1)
Great product that delivers on what it says it does. This won’t fix a mechanical problem or damaged component, but it will fix a stuck float, varnished tank, gummed up jet, or partially blocked emulsion tube.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
R
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R Duke, Texas
Charlottesville, US
★★★★★ 5
It Works
Size: 8 Fl Oz (Pack of 2)
This stuff works. I added it to my four 5 gallon gas cans before filling them up. I’ve used 10 gallons of gas in my lawn tractor so far and can tell it likes it. I do annual maintenance before summer and check or change the spark plug so it performs the best it can. I have 508 hours on it and with this it seems like it idols smoother, which indicates it has helped in the carburetor since I haven’t had to remove it and clean it. Works great.
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Reviewed in the United States on April 30, 2026
D
Verified Purchase
Dennis
Battle Creek, US
★★★★★ 5
Great product
Size: 4 Fl Oz (Pack of 1)
Used this stabil in my rider after first start of the season. Machine running rough and uneven. Drained old fuel and added it. Within 15 minutes at full throttle it began to run normal. No back fires and engine back to normal. There will always be a bottle of this in my garage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
S
Verified Purchase
Snowbutch1
Waukegan, US
★★★★★ 5
Works Great
Size: 8 Fl Oz (Pack of 1)
I"ve used Stabil gas treaments for year but never this particular type. With gas the way it is, I decided to see how it might help my mower and also my older truck. My older push mower which admittedly doesn't get pampered and petted seems to love it. Either it's grateful to get anything special or this stuff really has helped. The first tank seemed a little smoother but by the second I could hear the difference and feel it with the smoother sound and seems more power. It's easy to mix and use and Stabil is a well known reputable company.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
I
Verified Purchase
IRL
Port Orchard, US
★★★★★ 5
Easy and worked seamlessly with the new Apple MacBook Pro
Style Name: MacBook Pro 14" (M4), Configuration: 3 years
This was our first (Apple MacBook Pro M4) and big purchase directly on Amazon. I was not concerned about the order and product, but more concerned about the AppleCare+ not being connected directly to the device (after reading some reviews). However, I am happy to report that this was the first thing I checked as soon as we set up our computer. We are set for 3 years ... so thank you, Amazon and Apple, for working out the backend stuff and making our lives easier. It worked for us. It was easy, and I am happy with the overall quality of the process. Oh, don't forget it was cheaper than buying yearly from Apple directly.
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Reviewed in the United States on October 16, 2025

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