HD I/O is a multichannel digital audio interface designed for use with Avid HD systems. HD I/O features extremely high quality 24-bit analog-to-digital (A/D) and digital-to-analog (D/A) converters, and supports sample rates of up to 192 kHz.HD I/O comes in three standard configurations:
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8 x 8 x 8 (8 analog in, 8 analog out, and 8 digital in and out)You can also add or remove HD I/O Analog Expansion cards (ADC and DAC) and HD I/O Digital Expansion cards for custom configurations.HD I/O provides up to 16 discrete channels of Pro Tools input and output, with 4-segment LED meters for input and output.
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Up to sixteen channels of 24-bit D/A and A/D converters for superior analog input and output at sample rates of 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, and 192 kHz with Analog In and Analog Out HD I/O cards
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Soft Clip and Curv limiting circuits to protect against clipping on analog input
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Up to sixteen channels of 24-bit digital I/O, using AES/EBU, TDIF DB-25, or Optical at sample rates of 44.1, 48, 88.2, 96, 176.4, and 192 kHz with a Digital HD I/O card
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Real-time sample rate conversion on digital inputs with a Digital I/O card (up to sixteen channels of AES/EBU, Optical, or TDIF)
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Support for S/MUX Optical for sample rates of 88.2 kHz and higher
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Support for 2 channels of S/PDIF Optical (enclosed) with sample rates of up to 96 kHz
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2 channels of AES/EBU I/O (enclosed) with support for sample rates up to 192 kHz
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2 channels of 24-bit-capable S/PDIF I/O (enclosed) with support for sample rates up to 192 kHz
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Loop Sync input and output for connecting additional Avid HD audio interfaces and peripherals
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External Clock input and output for synchronizing HD I/O with external Word Clock devices
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Optional addition of I/O cards to expand analog or digital I/O
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Simultaneous use of multiple Avid HD audio interfaces to further expand system input and output