Datavideo AD-300 Pro Audio Delay Box
The AD-300 is equipped with a wide range of input and outputinterfaces and sound processing functions to fulfill the needs of professionalaudio 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 outputinterfaces. 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 msaudio delay range, and each input can be adjusted individually in millisecondsto achieve professional-grade sound and video synchronization.
Built-in Mixing Function
The built-in mix function allows you to select any of thefive input sources that you want to mix and combine them into a single outputchannel. A Test Tone can be added for volume correction.
Equalizer for adjusting timbre
You can set a specific frequency range and then adjust thevolume of that specific frequency range only. The equalizer of AD-300 canadjust each channel from 125Hz to 16K Hz in 8 frequency ranges, each adjustableby ± 10 dB, to produce the various tone effects you want.
The Compressor reduces the level of the high-volume soundsignal and maintains the original level of the low volume sound signal, thusreducing the dynamics range of the sound signal and adjusting the rise and fallof the audio track. The AD-300’s compressor can achieve a 100:1 compressionratio (Ratio), and the Attack time can be adjusted from 50 to 500msec, allowingyou to adjust the audio dynamic range to your ideal. Limiter is a function usedto limit the dynamic range and is often used in combination with Compressor. Itcontrols the maximum volume of the entire track and is adjusted at the end ofMastering. The Threshold range of the AD-300’s Limiter is +24dBu to -6dBu, andthe Attack time can be selected from 50 to 500ms. The Expander is the oppositeof the Compressor and is used to expand the dynamic range of the sound, makingthe louder and quieter parts of the Threshold range louder and quieter,respectively. The Expander can be used to make more noticeable changes in thevolume of instrumental music or vocals.
Effect: Gate
If the volume is less than the set thershold range, it willbe muted to silence, which is the function of the gate. Gate is mainly used toremove unwanted audio. For example, it can be used to eliminate the breathingnoise of the vocal sounds. The Gate thershold of the AD-300 can be adjustedfrom -66 dBu to -25 dBu.
Audio filter
Filters are being used to remove groups of frequencies froman audio-signal. High-pass filter cuts out all frequencies below auser-determined cutoff point. And low-pass filter cuts out all frequenciesabove a user-determined cutoff point.
Balanced/unbalanced audio conversion
The built-in balanced or unbalanced audio conversionprevents under-volume or popping in case of misuse. When unbalanced andbalanced audio conversion is required
When unbalanced and balanced audio conversion is required,the AD-300’s audio conversion function will ensure that the sound outputmatches the desired format.
Mic in with +48V phantom power
Switchable for Microphone input or Audio Line input andSupports XLR mic in and +48V phantom power.
Technical Specifications
Audio Input
3 x balanced stereo audio / Microphone
(3 Pin XLR / 1/4” (6.3mm) Socket)
2 x unbalanced stereo audio, RCA sockets
Audio Output
2 x balanced stereo audio, XLR connectors
2 x unbalanced stereo audio, RCA sockets
1 x 3.5mm Stereo headphone
Audio Indicator
2” LCD screen
Audio Delay
Up to 3000ms
Audio Sample Rates
48 KHz
Special Feature
Compressor
Limiter
Gate
Expander
Filter
Chassis
Rack-mountable with RMK-1 Rackmount Kit
Power
DC 12V 13.8W
Dimension (LxWxH)
205 x 235 x 45 mm
Weight
1.3 kg
Operating Temp. Range
0~40 °C
What’s in the Box
1 x AD-300 product
1 x AD Switch DC 12V
