Universal Audio Apollo X4 Gen2 Analog Classics
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Universal Audio
https://www.uaudio.com
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The Desktop Reference That Extends the Apollo Legacy
Designed as the powerful evolution of the Apollo Twin, the Apollo x4 sits between desktop models and rack-mounted Apollos. It carries forward the conversion quality and UAD workflow that have made Universal Audio renowned, while adding more inputs/outputs, advanced monitoring features, and a Quad DSP for more ambitious sessions.
Who Is It For and What Are Its Uses?
Ideal for demanding home studios, mobile producers, and small professional studios, the Apollo x4 excels with vocals, guitars, keyboards, and multi-source recordings. Its integrated Talkback facilitates communication with artists, its two headphone outputs easily handle two independent headphone mixes, and the optical input/output allows channel count expansion as needed.
Key Features and Innovations
Unison and DSP for "Mix-Ready" Recordings
The four Unison preamps replicate the impedance, gain, and coloration of legendary preamps and console channels (Neve, API, Manley...). Paired with the UAD-2 Quad processor, they enable real-time tracking with UAD compressors, equalizers, and guitar/bass amps to capture the right tone immediately without overloading your CPU.
High-End Conversion and Monitoring Control
With 24-bit/192 kHz conversion and a 127 dB dynamic range, the Apollo x4 delivers remarkable detail. Built-in control tools - Auto-Gain, Monitor Correction powered by Sonarworks, Mono/Mute/DIM/ALT controls - ensure reliable mixing decisions on both speakers and headphones.
UAD Console: A Modern Workflow
The UAD Console application centralizes routing, plug-in loading, and monitoring. Plug-in scenes, the bass manager, and gain automation speed up project setup and recall of your favorite processing chains.
Technical specifications
| Compatibility | PC, Mac | Max resolution | 24-bits |
| Sampling frequency | 192 kHz | Headphone outputs | Yes |
| Dynamic range | 127 dB | Dimensions (W x H x D) | 233 x 151 x 66 mm |
| Monitoring functions with control elements | Mono, Mute, DIM, and ALT | Weight | 1.46 kg |
| Includes | Essentials+ plug-in bundle | ||
Questions frequently asked
Is the Apollo x4 Gen2 compatible with Mac and PC?
Compatibility is announced with both Mac and PC computers, allowing integration into production setups on these two platforms.
How many Unison preamps are available?
Four Unison preamps are built in. They emulate the impedance, gain, and coloration of Neve, API, or Manley preamp and console channel strip models.
Can recording be done with UAD plug-ins without loading the computer’s processor?
The UAD-2 Quad processor enables real-time tracking with UAD compressors, equalizers, or guitar and bass amps. This DSP architecture limits the load on the computer’s CPU. The Essentials+ plug-in bundle is included.
What quality of conversion does this audio interface offer?
The conversion supports 24 bits / 192 kHz and the advertised dynamic range is 127 dB.
Does the Apollo x4 Gen2 allow for two separate headphone mixes?
Two headphone outputs are available to manage two independent headphone mixes. Mono, Mute, DIM, and ALT monitoring controls are also integrated.
