Universal Audio UA Apollo x4 Gen 2 STU (Desktop/TB3/MAC/WIN)

Record and mix larger sessions and hear every detail with the next generation of UA’s Apollo x4 interfaces, featuring highest-resolution audio conversion, four Unison™ mic preamps, and QUAD Core DSP processing letting you record in realtime through UAD plug-ins from Auto-Tune, Neve, Manley, Avalon, SSL, and hundreds more. Trusted by top artists and producers the world over, Apollo x4 levels up your productions with timeless sound and legendary UA craftsmanship, built to inspire your next collaboration

Universal Audio built Apollo x4 to expand on the gold-standard Apollo Twin, the interface that single-handedly revolutionized home and project studio recording. With its expanded I/O count, unprecedented dynamic range, and elite-class 24-bit / 192 kHz audio conversion — now with enhanced monitoring — Apollo x4 puts the sound of the stars in reach for project studios and collaborators.

With four Unison™ preamps and dual front panel Hi‑Z instrument inputs, Apollo x4 lets you track in realtime through preamp and channel strip plug-ins from Neve, Manley, API, and dozens more, giving you the same rich analog textures used on the greatest recordings of our time.

Combine Apollo x4’s QUAD Core DSP with native processing from your host computer to produce large sessions with complex plug-in chains — a powerhouse hybrid workflow that outpaces any native-only recording setup. Build your studio by linking up to four Thunderbolt Apollo interfaces with up to 128 channels of premium I/O to your DAW, and control it all from your desktop using Apollo x4. So no matter how far your music takes you, an Apollo will always be in reach.

Over 80 Included Plug-Ins in UAD Analog Classics Pro Vocals & Pitch Correction (2) Topline Vocal Suite Topline Key Finder Channel Strips & Preamps (19) API® Preamp API® Vision Channel Strip API® Vision Channel Strip Legacy Avalon® VT-737sp Channel Strip CS-1 Channel Strip Century Tube Channel Strip Helios® Type 69 Preamp & EQ LA-6176 Signature Channel Strip Manley® Reference Microphone Preamp Manley® VOXBOX Channel Strip Neve® 1073 Preamp & EQ Neve® 88RS Channel Strip Neve® 88RS Channel Strip Legacy Precision Channel Strip SSL® E Series Channel Strip SSL® E Series Channel Strip Legacy UA 610-A Preamp & EQ UA 610-B Preamp & EQ V76 Preamplifier Compressors / Limiters (21) API® 2500 Stereo Bus Compressor dbx® 160 Compressor / Limiter Empirical Labs EL8 Distressor Fairchild 660 Compressor Fairchild 670 Compressor Fairchild 670 Legacy Compressor Precision Buss Compressor SSL® G Series Bus Compressor SSL® G Series Bus Compressor Legacy Teletronix LA-2 Classic Leveler Teletronix LA-2A Gray Classic Leveler Teletronix LA-2A Silver Classic Leveler Teletronix LA-2A Legacy Teletronix LA-2A Tube Compressor Teletronix LA-3A Classic Audio Leveler UA 1176 FET Compressor UA 1176 Rev A Classic Limiter UA 1176AE Classic Limiter UA 1176LN Rev E Classic Limiter UA 1176LN Legacy UA 1176SE Legacy Equalizers (9) Helios Type 69 Legacy EQ Neve® 1073 Legacy Neve® 1073SE Legacy Precision Equalizer 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 (9) A-Type Multiband Dynamic Enhancer Ampex® ATR-102 Mastering Tape Recorder Little Labs® Voice Of God Bass Resonance Oxide Tape Recorder Precision De-Esser Precision Enhancer Hz Precision Enhancer kHz Studer® A800 Multichannel Tape Recorder Vibe Analog Machines Essentials Instruments (1) PolyMAX Polyphonic Synth Delay & Modulation (8) Brigade Chorus Pedal Cooper® Time Cube MkII Delay EP-34 Tape Echo Galaxy Tape Echo KORG® SDD-3000 Digital Delay Precision Delay Mod Precision Delay Mod L Studio D Chorus Reverbs & Rooms (6) Lexicon® 224 Digital Reverb Ocean Way Studios Deluxe Ocean Way Studios Precision Reflection Engine Pure Plate Reverb UAD Sound City Studios Mastering (3) Precision Limiter Precision Maximizer Precision Multiband Guitar & Bass (9) Bermuda Triangle Fender® ’55 Tweed Deluxe Raw Distortion TS Overdrive Pedal UAD Dream ’65 Reverb Amplifier UAD Lion ’68 Super Lead Amp UAD Ruby ’63 Top Boost Amplifier UAD Showtime ’64 Tube Amp UAD Woodrow ’55 Instrument Amplifier LUNA Extensions (4) Ampex® ATR-102 Master Tape Extension API® Summing Extension API® Vision Console Emulation Studer® A800 Multitrack Tape Extension