The AD-340 is an audio delay processor with universal analog (L/R) and digital (SPDIF) inputs and outputs. Both outputs are simultaneously active, enabling conversion between analog stereo audio to LPCM or vice versa. Delay time can be specified in milliseconds, frames, or distance depending on the application. Analog inputs provide +/- 24 db of gain for direct connection of low level mic as well as handling 2vrms line-level signals. The AD-340’s digital I/O support 2-channel linear PCM, 5.1 Channel Dolby Digital, and DTS Surround encoded bitstreams at any sampling rate from 32KHz to 96KHz.
For advanced control, the AD-340 connects to a PC via USB (cable included). No special USB drivers are needed and Hall Research provides a free software configuration utility available for download below. Advanced settings include:
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Read a review of the AD-340 by AV Technology Magazine here.
Digital Audio: | Standards: IEC 60958 Type II – Sony/Philips Interconnect Format=S/PDIF Audio Formats: Linear PCM (stereo), bitstreams: Dolby Digital 5.1, DTS 5.1 Cable/Connectors: Coaxial Cable with RCA Connector – 75 Ohm Signal Level: 0.5 Vpeak-to-peak (transformer coupled output) PLL Lock Frequency: 32 to 196 kHz Sampling Rate: 32 kHz, 44.1 kHz, 48 kHz, 96 kHz PCM Bitrates: 32 kHz~2 MHz, 44.1 kHz~2.8 MHz, 48 kHz~3.1 MHz, 96 kHz~6 MHz Bitstream Bitrates: DTS: 1.5 Mbps – Dolby-DVD: 448 kbps – Dolby-BD: 640 kbps |
Analog Audio | Standards: Stereo (Left and Right Channel) Signal Level: Line Level – 2Vrms (5.6 Vpeak-to-peak) Sampling Rate: Selectable: 32 kHz or 48kHz Cable/Connectors: Coaxial Cable with RCA Connector (ground loop isolated) Frequency Response: 20 Hz – 20kHz (+/- 0.2 dB) ADC Gain: Nominal 0 db (unity gain) Adjustable +/- 24 dB DAC Gain: Nominal 0 db (unity gain) Adjustable +/- 6 dB |
Delay Settings | Maximum Delay (msec): 510 ms @ 32 kHz | 370 ms @ 44.1 kHz | 340 ms @ 48 kHz Maximum Frames: 16 video frames at both 50 Hz and 60 Hz Maximum Distance: 550 feet @ 32 kHz | 396 feet @ 44.1 kHz | 362 feet @ 48 kHz Resolution for Delay Values: 1 msec, 1 Frame, 1 Foot, 1 Meter Compensation Temp Range: 32° F to 122° F – Step Value: 1 °F |
Dimensions | 1.18" H x 4.17" W x 3.85" D (30 mm H x 106 mm W x 98 mm D) Depth excludes connectors |
Power | 6 to 9 v DC at 200 ma. Included is a 6v. 1.5A Power Supply (100~240 VAC with Universal plugs) |
PC Interface | Mini-B USB 2.0 – Full Speed. Cable included |
Weight | Product - 0.75 lb (0.35 kg) Shipping - 1.5 lbs (0.70 kg) |
Vibration | ISTA 1A in carton (International Safe Transit Association) |
Safety | CE |
EMI/EMC | CE/FCC Class A |
MTBF | 90,000 hours |
Warranty | 2 years parts & labor |
Manuals | Versions | Last Updated | |
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AD-340 Manual | JUNE 24, 2020 | |
Software | Versions | Last Updated | |
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AD-340 GUI | JUNE 24, 2020 | |
Spec Sheets | Versions | Last Updated | |
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AD-340 PowerPoint Spec Sheet | JUNE 24, 2020 |
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