The HD I/O 8x8x8 Analog from Avid is a high-performance Pro Tools HD Series audio interface that is designed to completely integrate with Pro Tools HD systems. Available in three different configurations, this version provides eight analog inputs and outputs, with an additional 8 channels of AES/EBU I/O, or 8 channels of TDIF I/O, or 8 channels of ADAT Lightpipe.
 
Although it bears a physical resemblance to previous interfaces, the HD I/O has been completely redesigned with high quality converters and premium input and output circuitry. The interface provides maximum performance, dependability, and control of all inputs, outputs, and routing right from the Pro Tools software interface. Sample rate conversion is available on the digital card. The Digital I/O card contains connectors for eight channels each of AES/EBU I/O, TDIF I/O, and optical (ADAT) I/O. Only one digital format can be used at a time. A single card slot is available for further expansion.
 
The Features
- 8 input / 8 output analog audio interface with full Pro Tools|HD integration for complete input, output and routing control
- 8 channels of AES/EBU I/O in addition to the 2 fixed channels of AES/EBU available on the chassis
- Stereo AES/EBU, stereo S/PDIF and 8 channels of ADAT digital I/O with built-in sample rate conversion
- Pristine audio clarity and ultra low latency through state-of-the-art analog-to-digital and digital-to-analog conversion, premium analog circuitry, and meticulous attention to design
- Open card slot for additional customization
- Track hotter signals and smooth out sounds with Curv, a built-in soft-knee limiter
- Dedicated Wordclock and Loop Sync I/O
- 32, 4-segment metering LEDs for accurate level monitoring
- Connects to Pro Tools HD through a DigiLink Mini connection (cable and adaptor included)
 
Note:A minimum of Pro Tools HD 8.1 or higher software is required to use this interface. A free update is available for download to all registered Pro Tools HD 8.x users.