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| Spec | Antelope Audio Orion Studio Synergy Core | Universal Audio Apollo x4 Gen2 |
|---|---|---|
| General | ||
| Category | High-End | Professional |
| Reference Price (USD) | $2,995 | $2,299 |
| Supported OS | macOS/Windows | macOS/Windows |
| Connection | Thunderbolt 3 / USB 2.0 | Thunderbolt 3 |
| Inputs | ||
| Mic Preamps | 12 Better value | 4 |
| Combo Inputs (XLR/TRS) | 12 Better value | 4 |
| Line Inputs | — | 2 |
| Hi-Z Inputs | 4 Better value | 2 |
| ADAT Input (ch@48kHz) | 16 Better value | 8 |
| Optical Ports (Input) | 2 Better value | 1 |
| S/PDIF (Coax) Input | 1 | — |
| S/PDIF (Optical) Input | — | 1 |
| AES/EBU Input | — | — |
| Outputs | ||
| Analog Main Output | 2 | 2 |
| Analog Line Output | 16 Better value | 2 |
| Headphone Output | 2 | 2 |
| ADAT Output (ch@48kHz) | 16 Better value | 8 |
| Optical Ports (Output) | 2 Better value | 1 |
| S/PDIF (Coax) Output | 1 | — |
| S/PDIF (Optical) Output | — | 1 |
| AES/EBU Output | — | — |
| Features | ||
| Phantom Power (48V) | Yes | Yes |
| MIDI I/O | — | — |
| Loopback | — | — |
| DSP Effects | Yes (Synergy Core FPGA+DSP, 50+Effects) | Yes (UAD) |
| Direct Monitoring | Yes | Yes |
| Audio Performance | ||
| Max Sample Rate (kHz) | 192 | 192 |
| Max Bit Depth (bit) | 24 | 24 |
| Preamp Gain Range (dB) | 75 Better value | 10-65 |
| DR Input (dB, A-weighted) | 124 | — |
| DR Output (dB, A-weighted) | 128 | 129 Better value |
| DR (Unknown Conditions) | — | — |
| THD+N Mic Input (dB(%), 1kHz) | -112.0dB (0.00025%) | — |
| THD+N Output (dB(%), 1kHz) | -115.0dB (0.00018%) | -127.0dB (0.00004%) |
| THD+N (dB(%), Unknown) | — | — |
| EIN (dBu, A-weighted) | -128 | — |
| EIN (dBu, Unknown) | — | — |
| Software & Other | ||
| Bundled Software | Synergy Core FX (50+Effects) | Realtime Analog Classics Plus (Essentials+ or Studio+ available) |
| Notes | 12discrete preamps、DC-coupled I/O (CV compatible)、2×reamp outputs、2×analog inserts、64bit AFC clocking、built-in talkback、1Urack、standalone operation | QUAD Core DSP, Apollo Monitor Correction by Sonarworks, Bass Management, Room Correction |