| Simultaneous Voices |
96 (up to 192 total) |
256 (up to 768 total) |
256 |
| Audio Tracks** |
96/48/18 (up to 512 total) |
256/128/64 (up to 768 total) |
256/128/64 |
| Latency*** |
0.96 ms |
0.7 ms |
1.7 ms |
| Instrument Tracks |
128 |
256 |
256 |
| MIDI Tracks |
512 |
512 |
512 |
| Aux Tracks |
160 |
512 |
512 |
| Busses |
256 |
unlimited (Pro Tools 12.2 and up)
|
unlimited (Pro Tools 12.2 and up)
|
| Channels of I/O |
32 (up to 96 total) |
64 (up to 192 total) |
64 |
| Automatic Delay Compensation (ADC) |
4,096 samples |
16,383 samples |
16,383 samples |
| Processing Depth |
24-bit fixed |
32-bit floating point |
32-bit floating point |
| Mixer Depth |
48-bit fixed |
64-bit floating point |
64-bit floating point |
| DSP Power |
9 x 200 MHz processors (56k) |
18 x 350 MHz processors (T1) |
n/a (CPU host) |
* Pro Tools | HD Accel is the previous generation Pro Tools | HD system and no longer available. It is shown for comparison only
** Audio tracks based on sample rates of 48/96/192 kHz, respectively.
*** 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, and Pro Tools | HD Accel with 192 I/O.