Technical Specifications

Tech Specs Header 852x532


Avid qualified PCIe- or Thunderbolt-equipped Mac or Windows computer (see details)


DSP processing

18 x 350 MHz TI processors per HDX card
(6.3 GHz aggregated processing)



0.7 ms


Simultaneous voices/audio tracks**

@ 48 / 96 / 192 kHz - 256 / 128 / 64
HDX Classic: scalable up to 768 @ 48 kHz with three HDX cards
HDX Hybrid Engine: 2,048 at all sample rates


Channels of I/O

64 channels of DigiLink I/O
Scalable up to 192 channels with three HDX cards


Automatic Delay Compensation for hardware inserts

16,383 samples


Processing depth

32-bit floating point


Mixer depth

64-bit floating point


Software requirements

Pro Tools Ultimate

* Latency calculated using a 96 kHz sample rate with a 64-sample buffer. Tests run using Pro Tools | HDX and Pro Tools | HD Native with Pro Tools | HD I/O.
** Audio tracks based on sample rates of 48/96/192 kHz, respectively. Installing additional cards will increase track counts to the maximum allowable.