Se Habla Español

Avid HD I/O Digital Option

Modular Pro Tools interface with multi-format digital I/O


48-Month Special Financing*

Pay Over time With

48 Month Special Financing*


*Subject to credit approval. Minimum monthly payments required. For more details, click here.


Modular interface with customizable I/O with best-in-class ADA conversion up to 24+bit/192kHZ, ultra low latency, provides extreme flexibility for easy studio integration

A major step up from previous HD interfaces, the Avid Pro Tools|HD I/O has undergone far more than just a face lift. To make the insides match its sleek, stylish outsides, Avid completely redesigned the HD I/O 16×16 Analog from the circuit boards on up, featuring nothing but the highest quality components to give you A/D/A conversion that satisfies nothing less than pro audio’s A-list of golden-eared engineers and mixers working in both music production and feature film. With the lowest latency possible for inspired tracking at sample rates up to 24-bit/192kHz plus, Avid Pro Tools|HD I/O interfaces feature customizable I/O for easy studio integration with the gear you own. It’s modular design also enables you to expand* and customize the Avid HD I/O interface to grow with your studio. The Pro | Tools HD I/O 16×16 Digital 16 features channels of AES3 I/O on DB-25 connectors (192 kHz single-wire and dual-wire); 16 channels of TDIF I/O, 16 channels of ADAT I/O with S/MUX II & IV support; as well as digital I/O including 8-channel ADAT with S/MUX II & IV support, 2-channel AES3 via XLR connectors, 2-channel RCA S/PDIF, word clock I/O, and Avid’s proprietary Loop Sync I/O. Avid Pro Tools|HD I/O interfaces are supported by Pro Tools|HDX or Pro Tools|HD Native systems.

 Avid Pro Tools|HD I/O 16×16 Digital in one take:

  • 16 channels of AES/EBU (S/MUX) I/O, 16 channels of TDIF I/O, and 16 channels of ADAT I/O
  • Expandable modular design
  • State-of-the- art A/D and D/A conversion and premium analog circuitry provide superior clarity and detail
  • 32 four-segment front-panel LED input and output metering
  • Three available I/O configurations via analog or digital I/O option cards
  • AES, ADAT, and S/PDIF digital I/O on all interfaces
  • Completely integrates with Pro Tools|HD family system via DigiLink connector for full input, output, and routing control (cable and adapter included)
  • Built-in soft-knee limiter and soft clip feature lets you track hotter signals without digital overs
  • Dedicated word clock and loop sync I/O
  • Sturdy and stylish 2U rack-mountable chassis

* Two empty bays for I/O expansion

Avid Pro Tools|HD I/O 16×16 Digital applications

If audio post-production is your game, then Pro Tools|HD I/O 16×16 Digital is the name. frequently need to interface with a digital mixer, dubber, additional Pro Tools rig, or other digital infrastructure. It offers 16 channels of AES/EBU (S/MUX) I/O, 16 channels of TDIF I/O, 16 channels of ADAT I/O, 2 additional channels of AES/EBU I/O, 2 channels of S/PDIF I/O, and 8 additional channels of ADAT I/O. Plus, you have two empty bays to expand your I/O even further.

 INSIDE THE BOX—Avid Pro Tools|HD I/O 16×16 Digital

Hear what you’ve been mixing

Avid’s latest generation of HD I/O represents not only a major improvement in A/D – D/A conversion, but also obviates the need to use 3rd-party converters, thus keeping your system not only more streamlined physically, but sonically as well with the shortest possible signal path. The Pro Tools|HD I/O offers stellar audio fidelity, extended dynamic range, super-low jitter, and musician/performance-friendly ultra low latency. With an impressive THD+N (0.0002% ADC, 0.00032% DAC), the Pro Tools HD | I/O maintains spectacular clarity as track counts increase, whether you’re tracking or mixing.

Speaking of tracking, Pro Tools HD | I/O includes a soft clip feature for worry-free recording, plus Curv, a built-in soft-knee limiter that can catch the fastest of transients, enabling you to track hotter signals and smooth out inconsistent levels from input sources. Depending on the I/O you choose, Avid’s Pro Tools|HD I/O also features built-in sample rate conversion.

Comprehensive connectivity

While the Pro Tools|HD I/O Analog 16×16 configuration is the best choice for intensive music production, particularly if you work with multi-input recording and analog summing, Pro Tools|HD I/O digital configurations and options enable you to connect effectively into any post-production environment. In such a scenario, Pro Tools|HD gives you AES/EBU, TDIF, and ADAT connections to integrate with a digital mixer, additional Pro Tools rigs, or other digital infrastructure.

All HD I/O configurations, whether analog or digital, include a section of additional digital I/O that enables you to expand your system. All HD I/O interfaces come with two channels of AES3 digital I/O on XLR, eight channels of ADAT I/O with S/Mux II & IV support) 2-channel S/PDIF on RCA connectors, word clock I/O, Loop Sync I/O and a mini expansion port add other HD I/O systems. Avid’s Loop Sync I/O provides an alternative means to distribute clock signal throughout the system. In essence, as the name implies, Loop Sync creates a closed loop by connecting the clock out of last interface to the clock input of the first device in the system.

Avid Pro Tools HD I/O 16×16 Digital configuration:

Versatile digital I/O:

  • 16 channels of AES3 I/O (supports 192 kHz single-wire and dual-wire)
  • 16 channels of TDIF I/O
  • 16 channels of ADAT I/O (supports S/MUX II and IV)

Additional digital I/O:

  • 2 channels of AES/EBU I/O (supports 192 kHz single-wire)
  • 2 channels of S/PDIF I/O
  • 8 channels of ADAT I/O (supports S/MUX II and IV)

 Flexible I/O for easy studio connectivity

Avid HD I/O comes in three configurations: 16×16 analog, 8x8x8 analog/digital, and 16×16 digital. HD I/O option cards add more analog inputs, analog outputs, or digital I/O. As your needs grow or change, you can easily add more analog inputs, analog outputs, or digital I/O by installing an option card. While HD I/O 16×16 Analog comes with the maximum four cards, you can customize your I/O by swapping out any card.

  • HD I/O AD Option: Adds 8 high-fidelity analog inputs (using DB25)
  • HD I/O DA Option: Adds 8 high-fidelity analog outputs (using DB25)
  • HD I/O Digital Option: Adds 8 channels each of AES/EBU (supports 192 kHz single-wire and dual-wire), TDIF, and ADAT I/O (supports S/MUX II and IV)

Seamless integration with Pro Tools and other DAWs

For stability that audio professionals rely on for peace of mind, Avid HD I/O 16×16 Digital and all other Pro Tools|HD Series interfaces feature total integration with Pro Tools|HD software, giving you maximum performance, dependability, and convenient software control of your inputs, outputs, and routing. The resulting improvement in workflow assures you greater production quality. All Pro Tools|HD systems support Core Audio and ASIO drivers in case you want to use your HD I/O interface other DAW software.

For best-in-class conversion, highest-quality audio, and uncompromising design and stability, choose an Avid Pro Tools|HD I/O interface for your Pro Tools system. Call or chat with your Westlake Pro sales consultant today.


Avid Pro Tools | HD I/O 16×16 Digital specifications:

  •  Analog inputs: 0
  • Analog outputs: 0
  • AES3 I/O: 16 + 2
  • AES single-wire (192kHz): Yes
  • S/PDIF I/O: 1 In + 1 Out (coax or optical)
  • ADAT I/O: 16 + 8
  • S/MUX: S/MUX II and IV
  • SRC: 16 channels (digital cards)
  • Word Clock I/O: 1 In + 1 Out
  • Loop Sync I/O: 1 In + 1 Out
  • Digital interface: DigiLink Mini
  • Dynamic range ADC: N/A
  • Dynamic range DAC: N/A
  • THD+N ADC: N/A
  • THD+N DAC: N/A
  • Frequency response ADC: N/A
  • Frequency response DAC: N/A
  • Expansion: 2 empty bays
  • Curv: N/A
  • Soft clip: N/A
  • Cal trims: N/A
  • Metering: 32 4-segment LEDs
  • Internal fan: N/A
  • Chassis: 2U rackmountable

System compatibility:

Avid-qualified Pro Tools|HD family system running Pro Tools HD 8.1 or higher software

Avid-qualified Pro Tools|HD family system running a Core Audio or ASIO compliant application

Additional information

Weight 18 lbs
Dimensions 26 × 14 × 8 in

Don't see what you're looking for?

We carry all of the top brands for audio and post-production, so don’t hesitate to contact us if you need something specific!

Westlake Pro Card

No Interest for 24, 36, 48 Months*

On select brands purchased with your Westlake Pro credit card. Equal monthly payments required for 24, 36 and 48 month purchases.

*No interest will be charged, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the initial total promo purchase amount divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promotional purchase. Regular account terms apply to non-promo purchases. New Account APR is 29.99%/Minimum Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Insider Access to Pro Audio's hottest deals, new gear, and free software.

We hate spam. We don’t share your information with any third parties.

Sign up now!