Avid ProTools HD I/O

Get pristine sound quality and clarity for your most demanding recording sessions. Pro Tools | HD I/O is a high-performance audio interface designed for Pro Tools | HD systems that enables you to capture every detail and nuance of a performance. Achieve the high fidelity, extensive dynamic range, and lowest possible latency you need for large-scale, high-profile projects. Plus, its modular design makes it easy to expand and customize the interface for your connection needs—now and in the future. And with its new lower price, getting great sound is now even easier too.

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Avid ProTools HD I/O


Hear what you’ve been missing

If you’re familiar with our older “blue” Pro Tools | HD interfaces, your ears are in for a major treat. Experience significantly better audio fidelity, wider dynamic range, and super-low jitter thanks to sophisticated A/D and D/A conversion. Capture and play back every audio detail. Retain the warmth and presence of your original sources. And get the lowest possible latency when recording even the largest sessions.

Track with ease

Connect your digital gear hassle-free with sample rate conversion in HD I/O’s digital configurations. Maximize your analog input signals, without any harsh clipping, with the soft clip feature. Plus, you’ll be able to track hotter signals and smooth out inconsistent levels from incoming sources.

Get I/O versatility

The rack-mountable 2U HD I/O comes in three configurations, so you can choose the interface that best suits your connection needs. In addition, you can expand your analog or digital I/O by simply installing an HD I/O option card into any empty bay (see all configurations and options below).

Gain full I/O control

Like all Pro Tools | HD Series interfaces, HD I/O tightly integrates into any Pro Tools | HDX or HD Native workflow. That integration extends down into the software too, enabling you to gain complete control of your inputs, outputs, and routing right from the Pro Tools | Ultimate software interface. No matter how hard you push it, you can expect maximum performance and reliability every time.

Avid ProTools HD I/O


HD I/O—16×16 ANALOG HD I/O—8x8x8 HD I/O—16×16 DIGITAL
Analog inputs 16 8 0
Analog outputs 16 8 0
AES/EBU I/O 2 8 + 2 16 + 2
AES single-wire (192 kHz) Yes Yes Yes
S/PDIF I/O 1 In + 1 Out (coax or optical) 1 In + 1 Out (coax or optical) 1 In + 1 Out (coax or optical)
ADAT I/O 8 8 + 8 16 + 8
SRC N/A 8 channels (digital card) 16 channels (digital cards)
Word Clock I/O 1 In + 1 Out 1 In + 1 Out 1 In + 1 Out
Loop Sync I/O 1 In + 1 Out 1 In + 1 Out 1 In + 1 Out
Digital interface DigiLink Mini DigiLink Mini DigiLink Mini
Dynamic range ADC 122 dB 122 dB N/A
Dynamic range DAC 125 dB 125 dB N/A
THD+N ADC -114 dB (0.0002%) -114 dB (0.0002%) N/A
THD+N DAC -110 dB (0.00032%) -110 dB (0.00032%) N/A
Frequency response ADC 20 Hz – 20 kHz N/A 20 Hz – 20 kHz N/A N/A
(+/-.03 dB) (+/-.03 dB)
Frequency response DAC 20 Hz – 20 kHz N/A 20 Hz – 20 kHz N/A N/A
(+/-.15 dB) (+/-.15 dB)
Expansion None (card swaps only) 1 empty bay 2 empty bays
Curv Yes Yes N/A
Soft clip Yes Yes N/A
Cal trims Yes Yes N/A
Metering 32 4-segment LEDs 32 4-segment LEDs 32 4-segment LEDs
Internal fan Yes Yes N/A
Chassis 2U rack-mountable 2U rack-mountable 2U rack-mountable
Avid ProTools HD I/O