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Free UAD plug-ins with this Apollo ($1,092 value)
Includes Anthem Analog Synthesizer, Electra 88 Vintage Keyboard Studio, Opal Morphing Synth, Ravel Grand Piano, Topline Vocal Tune, UA 175 & 176 Tube Compressor Collection, Vibe Analog Machines, Waterfall B3 Organ. Promo ends July 31, 2026. 14-day grace period to redeem through your UA account.
Quick answer: The Apollo x4 Gen 2 STU is a Universal Audio Apollo audio interface with onboard DSP for realtime UAD plug-in processing while you record. Sold brand-new by Victory Musical Instruments, a veteran-owned authorized UA dealer in Miami, FL. Questions? Call 844-687-4208.
The most powerful desktop Apollo, with UA's full UAD Analog Classics Pro library. The Universal Audio Apollo x4 Gen 2 with UAD Analog Classics Pro pairs the four-preamp x4 with 80+ UAD plug-ins — a complete tracking-and-mixing studio in a desktop footprint.
At a Glance
| Brand | Universal Audio |
|---|---|
| Model | Apollo x4 Gen 2 STU |
| Category | Audio Interface |
| Form factor | Desktop |
| Connection | Thunderbolt 3 |
| Computer compatibility | Mac & Windows |
| SKU / MPN | APX4G2-STU |
| Condition | New (factory sealed) |
| Warranty | Full Universal Audio manufacturer warranty |
| Sold by | Victory Musical Instruments — veteran-owned authorized UA dealer, Miami FL |
Overview
Apollo x4 Gen 2 is built for the producer or engineer who needs four simultaneous mic inputs — for tracking drums, small ensembles, or anyone who runs out of channels on a Twin X. Elite-class 24-bit / 192 kHz conversion, four Unison mic preamps, two Hi-Z instrument inputs, QUAD Core DSP, and 12 In / 18 Out total I/O make it the most capable desktop Apollo. The with UAD Analog Classics Pro adds the deepest UAD plug-in bundle UA offers at this tier.
Key Features
- Elite-Class Apollo X Gen 2 Conversion — 24-bit / 192 kHz with up to 129 dB dynamic range, the widest of any desktop Apollo.
- Four Unison Mic Preamps — Authentic emulations of Neve, API, Manley, SSL, Avalon, Fender, and more, with circuit-level impedance modeling.
- QUAD Core DSP — Runs UAD plug-ins in realtime, independent of your computer's CPU.
- 12 In / 18 Out I/O — four Unison preamps, two Hi-Z instrument inputs, 2 monitor outs, four line outs (ALT 1/2), two TRS headphone outs, optical Toslink I/O
- Apollo Monitor Correction by Sonarworks® — Calibrate main monitors and headphones for accurate playback in any room (available add-on).
- Updated UAD Console — Auto-Gain, Plug-In Scenes, Bass Management, immersive audio support, integrated talkback, and Monitor Controller.
- Optical Toslink I/O — ADAT or S/PDIF for digital expansion.
- Thunderbolt 3 (USB-C) — Mac and Windows compatible.
Connectivity
- Analog Inputs — 4 x XLR-1/4" combo (rear) + 2 x 1/4" Hi-Z instrument inputs (front).
- Analog Outputs — 2 x 1/4" monitor outs + 4 x 1/4" line outs (configurable as ALT 1 / 2).
- Headphones — 2 x 1/4" TRS with independent volume.
- Digital — Optical Toslink for ADAT (up to 8 channels at 44.1/48 kHz) or S/PDIF I/O.
- Computer — Thunderbolt 3 (USB-C).
- Power — External power supply (included).
UAD Analog Classics Pro Plug-In Bundle
This Apollo ships with Universal Audio's UAD Analog Classics Pro plug-in bundle — 80+ UAD titles covering channel strips, compressors, EQs, tape emulation, reverbs, and analog instruments. The bundle is delivered digitally through your UA Connect account after registration. For the full current list of included plug-ins, see Universal Audio's product page.
Built for Larger Sessions
Where the Twin X handles vocals, guitars, and overdubs, the Apollo x4 handles entire bands. Four simultaneous Unison preamp inputs are enough to track a singer-songwriter with full guitar/bass/vocal rig, a small ensemble, or a basic drum kit — and the ALT 1 / 2 monitor switching and dual independent headphone outputs make it studio-ready for tracking with a collaborator or engineer.
What's in the Box
- Apollo x4 Gen 2 audio interface
- External power supply
- Thunderbolt 3 cable (USB-C)
- UAD Analog Classics Pro UAD plug-in bundle (digital via UA Connect)
Frequently Asked Questions
Does this Apollo work on Windows, Mac, or both?
This Thunderbolt Apollo works on both Mac and Windows computers that have a Thunderbolt 3 or 4 port.
Can I run UAD plug-ins in realtime while tracking?
Yes. Apollo's onboard DSP runs UAD plug-ins at near-zero latency, so you can print or monitor through analog emulations of classic preamps, compressors, EQs, and amps as you record.
What plug-ins are included with this Apollo?
This Apollo includes the UAD Analog Classics Pro bundle — 80+ UAD plug-ins covering compressors, EQs, reverbs, tape, preamps, and analog instruments. The current full list is published by Universal Audio.
What's included in the box?
Your purchase includes: Apollo x4 Gen 2 audio interface, External power supply, Thunderbolt 3 cable (USB-C), UAD Analog Classics Pro UAD plug-in bundle (digital via UA Connect).
Is the Apollo x4 Gen 2 STU a genuine Universal Audio product?
Yes. Victory Musical Instruments is a veteran-owned, authorized Universal Audio dealer based in Miami, FL. Every unit is brand-new, factory-sealed, and covered by the full UA manufacturer warranty.
Can I get help choosing or setting it up?
Absolutely. You'll talk to real people, not a call center. Call us at 844-687-4208 and we'll help you spec the right gear and get it running.
Why Buy from Victory Musical Instruments
Victory Musical Instruments is a veteran-owned authorized retailer in Miami, FL. Whether you're outfitting a home studio, a college program, or a worship room, we'll help you spec the right gear and stand behind the sale. Save through our ID.me military discount program — active duty, veterans, reservists, and eligible family.