Get the absolute highest audio quality and unprecedented I/O flexibility with Avid HD I/O, a high-performance Pro Tools HD Series audio interface that's designed to completely integrate with Pro Tools|HD systems. While its sleek look resembles its prior generation interfaces, HD I/O has been completely redesigned on the inside with high-quality electronics, giving you pristine, best-in-class A/D and D/A conversion and the lowest possible latency. Plus, with three configurations to choose from and a modular design, you can expand and customize the interface for your connection needs.

Pristine audio clarity
Enjoy pristine audio clarity and ultra low latency through state-of-the-art A/D and D/A conversion, premium analog circuitry, and meticulous attention to design.

Versatile digital I/O
Easily connect to other digital gear without hassle, with built-in sample rate conversion.

Adapt the interface for your needs
Choose from three standard configurations and customize your analog and/or digital I/O as needed.

Complete integration
Experience top performance, thanks to tight integration with Pro Tools | HD systems for full input, output, and routing control.

Pristine audio clarity and ultra low latency through state-of-the-art A/D and D/A conversion, premium analog circuitry, and meticulous attention to design

Versatile digital I/O on all interfaces, with built-in sample rate conversion

Expand or customize the I/O with analog or digital option cards

Completely integrates with Pro Tools | HD family systems for full input, output, and routing control

Track hotter signals and smooth out sounds with Curv, a new built-in soft-knee limiter

Keep things in sync with dedicated Word Clock and Loop Sync I/O

Keep an eye on your levels easily through 32 4-segment metering LEDs

Robust 2U rack-mountable chassis

Connects to Pro Tools | HD family systems through a DigiLink Mini connection (cable and adaptor included)

HD I/O 16x16 Analog
The ideal choice for music productions-get the maximum complement of analog inputs and outputs (can be customized by replacing a card, but not expanded).
High-quality analog I/O:

16 analog inputs (using DB25)

16 analog outputs (using DB25)

Additional digital I/O:

2 channels of AES/EBU I/O (supports 192 kHz singlewire)

8 channels of ADAT I/O (supports S/MUX II and IV)

Analog inputs : 16

Analog outputs : 16

AES/EBU I/O : 2

AES single-wire (192 kHz) : Yes

S/PDIF I/O : 1 In + 1 Out (coax or optical)

ADAT I/O : 8

S/MUX : S/MUX II and IV

SRC : N/A

Word Clock I/O : 1 In + 1 Out

Loop Sync I/O : 1 In + 1 Out

Digital interface : DigiLink Mini

Dynamic range ADC : 122 dB

Dynamic range DAC : 125 dB

THD+N ADC : -114 dB (0.0002%)

THD+N DAC : -110 dB (0.00032%)

Frequency response ADC : "20 Hz - 20 kHz N/A (+/-.03 dB)"

Frequency response DAC : "20 Hz - 20 kHz N/A (+/-.15 dB)"

Expansion : None (card swaps only)

Curv : Yes

Soft clip : Yes

Cal trims : Yes

Metering : 32 4-segment LEDs

Internal fan : Yes

Chassis : 2U rack-mountable