Datavideo AD-300 Pro Audio Delay Box
SKU: 91445340274

Datavideo AD-300 Pro Audio Delay Box

Sale price$620.55 Regular price$689.50
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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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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4.9 ★★★★★
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Verified Purchase
Mimie Hull
Louisville, US
★★★★★ 5
Great kids sandals
Size: 9 Toddler, Color: Taupe
These are cute and my kids say they’re comfortable! We got a few colors. Definitely would purchase again. They’ve got good quality.
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Reviewed in the United States on March 18, 2026
J
Verified Purchase
Jenna Smeyne
New York, US
★★★★★ 1
Super wide
Size: 13 Little Kid, Color: Taupe
They are oddly very wide. Great for kids with wide chunky feet but for us it was not cute
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Reviewed in the United States on May 18, 2026
K
Verified Purchase
Kindle Customer
Omaha, US
★★★★★ 2
Nice but runs small
Size: 7 Big Kid, Color: Navy
The sandals are nice and not to hard or flimsy but they are cut very small.
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Reviewed in the United States on April 22, 2026
A
Alexandria Knox
Birmingham, US
★★★★★ 4
Solid Kids Sandals, Overpriced Like Most Kids Shoes 🌞
Size: 11 Little Kid, Color: Brown, Size: 11 Little Kid, Color: Brown
My son hasn’t worn these yet since it’s December in Indiana and sandals + snow obviously don’t mix. 😂 So this review is based on first impressions rather than long term wear. That said, these seem wider than a lot of typical kids’ sandals, which I REALLY appreciate since we tend to have wider feet in our family. #hobbitfeet The quality feels pretty decent overall. They’re described as lightweight, and while they’re not insanely lightweight, they do have enough weight to feel semi-sturdy and not flimsy or cheap. I like the style and color, and I think they’ll work well for my son once warmer weather hits. My main complaint is the price. At just under $24 at the time of this review, it feels a little high for kids’ sandals and for what these are. I really feel like $20 MAX would make more sense. Kids shoes are almost always priced like adult shoes, even though they clearly use less material, and that’s hard for me to understand and wrap my mind around. Overall, these seem solid for daily wear, I just wish the price was a bit more reasonable and affordable.
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Reviewed in the United States on December 31, 2025
J
Job
West Palm Beach, US
★★★★★ 5
Great basic and timeless design
Size: 12 Little Kid, Color: Brown
These sandals are a great find! They’re super easy to get on and off thanks to the Velcro straps, which is a huge win for little ones learning to be more independent. The fit is adjustable and secure, so they stay in place well during all kinds of play. The cork-style footbed is comfortable and gives good support, and the overall design feels sturdy enough to handle everyday wear. They’re lightweight but still durable, and have held up really well so far. They also have a classic, versatile look that goes with just about everything, perfect for summer outfits. Overall, a reliable, comfortable sandal that’s great for active kids. Would definitely buy again!
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Reviewed in the United States on April 24, 2026

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