The Universal Audio Apollo x4 Gen 2 is a 12 x 18 desktop Thunderbolt 3 audio interface with four Unison mic preamps, two Hi-Z inputs, and QUAD Core DSP for realtime UAD plug-in processing. It brings rack-style I/O count to a desktop chassis with elite-class Apollo X Gen 2 conversion at 24-bit / 192 kHz for Mac and Windows.

Unison Preamps and Monitoring

Four Unison mic preamps and dual front-panel Hi-Z inputs support realtime tracking through modeled classic preamps and amps. QUAD Core DSP runs UAD plug-ins at near-zero latency. Dual headphone outputs, alternate speaker switching, integrated talkback, Auto-Gain, Bass Management, Plug-In Scenes, and Apollo Monitor Correction powered by Sonarworks are controlled from the UAD Console app.

Plug-in Bundle (Essentials+)

Essentials+ includes 33 UAD plug-ins (Apollo X Gen 2):

• Channel strips and preamps: Century Tube Channel Strip, CS-1 Channel Strip, Helios Type 69 Preamp and EQ, Precision Channel Strip, UA 610-A Preamp and EQ, UA 610-B Preamp and EQ
• Compressors / limiters: Fairchild 670 Legacy, Teletronix LA-2A Classic Leveler, Teletronix LA-2A Gray Classic Leveler, Teletronix LA-2A Silver Classic Leveler, Teletronix LA-2A Legacy Leveling Amplifier, UA 1176LN Legacy, UA 1176SE Legacy
• Equalizers: Helios Type 69 Legacy EQ, Pultec EQP-1A Legacy EQ, Pultec EQP-1A Passive EQ, Pultec HLF-3C Passive EQ, Pultec MEQ-5 Passive EQ, Pultec Pro Legacy EQ
• Special processing: Auto-Tune Realtime Access, Oxide Tape Recorder, Precision Enhancer Hz, Verve Analog Machines Essentials
• Instruments: PolyMAX Polyphonic Synth
• Delay and modulation: Galaxy Tape Echo, Precision Delay Modulation, Precision Delay Modulation Long
• Reverbs and rooms: Precision Reflection Engine, Pure Plate Reverb, RealVerb Pro Custom Room Modeler
• Guitar and bass: Ampeg SVT-VR Classic Bass Amplifier, Marshall Plexi Classic Amplifier, Raw Distortion

Additional UAD plug-ins from the 200+ title library can be purchased separately. Formats: VST, AU, AAX 64.

Specifications

• Simultaneous I/O: 12 x 18 (analog + digital, ADAT mode)
• Mic preamps: 4 Unison-enabled, +48V phantom
• Hi-Z inputs: 2 front-panel 1/4"
• Monitor outputs: 2 x 1/4"
• Line / ALT outputs: 4 x 1/4" (ALT 1 / 2)
• Headphone: 2 x 1/4" TRS
• Digital I/O: optical TOSLINK I/O (ADAT or S/PDIF selectable)
• Host: Thunderbolt 3 (Mac / Windows)
• DSP: QUAD Core (four SHARC processors)
• Conversion: 24-bit / 44.1-192 kHz; enhanced monitor D/A up to 129 dB dynamic range
• Analog round-trip latency: 1.1 ms @ 96 kHz
• Power: external 12 VDC supply (included)
• Dimensions: 232.98 x 155.60 x 65.81 mm (9.17" x 6.12" x 2.51"), W x D x H including knobs/jacks
• Weight: 1.47 kg (3.2 lb)

In the Box

• Apollo x4 Gen 2 audio interface
• External power supply
• AC power cable (IEC C7, region-specific)
• Getting Started URL card

Thunderbolt cable sold separately.