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| Spec | Focusrite Scarlett 18i20 4th Gen | MOTU 828x |
|---|---|---|
| General | ||
| Category | Upper Mid-Range | Upper Mid-Range |
| Reference Price (USD) | $750 | $999 |
| Supported OS | macOS/Windows | macOS/Windows |
| Connection | USB 2.0 | Thunderbolt / USB 3.0 |
| Inputs | ||
| Mic Preamps | 8 Better value | 2 |
| Combo Inputs (XLR/TRS) | 8 Better value | 2 |
| Line Inputs | 8 | 8 |
| Hi-Z Inputs | 2 | 2 |
| ADAT Input (ch@48kHz) | 16 | 16 |
| Optical Ports (Input) | 2 | 2 |
| S/PDIF (Coax) Input | 1 | 1 |
| S/PDIF (Optical) Input | — | 1 |
| AES/EBU Input | — | — |
| Outputs | ||
| Analog Main Output | 2 | 2 |
| Analog Line Output | 10 Better value | 8 |
| Headphone Output | 3 Better value | 1 |
| ADAT Output (ch@48kHz) | 16 | 16 |
| Optical Ports (Output) | 2 | 2 |
| S/PDIF (Coax) Output | 1 | 1 |
| S/PDIF (Optical) Output | — | 1 |
| AES/EBU Output | — | — |
| Features | ||
| Phantom Power (48V) | Yes | Yes |
| MIDI I/O | — | 1 IN / 1 OUT |
| Loopback | Yes | — |
| DSP Effects | — | Yes (Built-in) |
| Direct Monitoring | Yes | Yes |
| Audio Performance | ||
| Max Sample Rate (kHz) | 192 | 192 |
| Max Bit Depth (bit) | 24 | 24 |
| Preamp Gain Range (dB) | 69 | — |
| DR Input (dB, A-weighted) | 122 | — |
| DR Output (dB, A-weighted) | — | — |
| DR (Unknown Conditions) | — | — |
| THD+N Mic Input (dB(%), 1kHz) | — | — |
| THD+N Output (dB(%), 1kHz) | — | — |
| THD+N (dB(%), Unknown) | — | — |
| EIN (dBu, A-weighted) | — | — |
| EIN (dBu, Unknown) | — | — |
| Software & Other | ||
| Bundled Software | Focusrite Red Plug-in Suite | Audio Desk, Performer Lite |
| Notes | Rack-mount 1U 19 inch, Auto Gain, Clip Safe, Air Mode, Harmonic Drive | 28x32 hybrid TB/USB 3, ESS Sabre32 DAC, MIDI I/O, Word Clock I/O, 1U rack |