Record through legendary preamps and processors in real time – with Apollo’s famous conversion. The Universal Audio Apollo x4 Gen 2 Essentials+ Edition is a desktop Thunderbolt 3 audio interface with 4 Unison mic preamps, QUAD Core UAD DSP and Apollo X Gen 2 converters. It is made for singer-songwriters, producers and home studios that want four Unison preamps on the desk.
Why customers choose it
Who it is for
Singer-songwriters, producers and home studios that want four Unison preamps on the desk, on Mac or Windows.
What’s in the box
- 1 x Universal Audio Apollo x4 Gen 2
- 1 x External power supply
- 1 x Region-specific AC power cable
- 1 x Getting Started URL card
Specifications
| I/O | 12 x 18 |
|---|---|
| Form | Desktop |
| Inputs | 4 Unison mic preamps, 2 Hi-Z |
| Outputs | 2 x 1/4-inch monitor, 4 x 1/4-inch line (ALT 1/2), 2 headphone |
| Digital I/O | Optical (ADAT or S/PDIF) |
| DSP | QUAD Core |
| Conversion | 24-bit / 192 kHz |
| D/A | 129 dB dynamic range |
| Connection | Thunderbolt 3 (Thunderbolt 3/4 port) |
| Compatibility | Mac (Apple silicon and Intel), Windows |
| Software edition | Essentials+ |
| Type | Thunderbolt audio interface with UAD DSP |
| Sample Rate | Up to 192 kHz |
Good to know
- Needs a computer with a Thunderbolt 3 or 4 port.
- The Essentials+ Edition sets the bundled UAD plug-ins – ask us for the current list.
- Sonarworks room correction needs SoundID Reference software and a measurement mic (sold separately).
FAQ
Mac or Windows?
Both – Mac (Apple silicon and Intel) and Windows PCs with Thunderbolt 3/4.
Can I record through effects without delay?
Yes, the built-in UAD DSP runs plug-ins in real time at near-zero latency.







































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