Universal Audio Apollo Twin X DUO Gen 2|Desktop Dual-Core DSP Audio Interface
Decades of analog, right on your desktop
The Universal Audio Apollo Twin X DUO Gen 2 is a desktop Thunderbolt audio interface from Universal Audio, featuring elite-class Apollo X Gen 2 conversion with 24-bit / 192 kHz resolution and 129 dB dynamic range, dual Unison™ mic preamps, and DUO Core DSP processing that lets you record in realtime through 200+ UAD plug-ins from Neve, Manley, SSL, Auto-Tune and more.
Unlike native-only setups, Apollo Twin X DUO's hybrid DSP architecture lets you monitor classic analog tones at near-zero latency, so you hear the finished sound while you track — not after. From vocals and guitars to full arrangements, create with the same tones used in the world's top studios for decades.
DSP core version DUO Core | Also available: QUAD Core (Apollo Twin X QUAD Gen 2)
Quick Facts
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Brand: Universal Audio
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Model: Apollo Twin X DUO Gen 2
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Conversion: 24-bit / 192 kHz, elite-class Apollo X Gen 2
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Dynamic Range: 129 dB (D/A)
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DSP: DUO Core
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Unison Preamps: 2 (with Hi-Z instrument input)
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I/O: 10 x 6 (Thunderbolt)
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Best For: vocal & instrument recording, mix monitoring, podcasting, home & pro studios
Apollo Twin X DUO Gen 2 Core Technology & Features
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elite-class Apollo X Gen 2 conversion: the widest dynamic range and lowest distortion of any Apollo — 24-bit / 192 kHz, 129 dB D/A — so you hear every detail.
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Dual Unison™ mic preamps: front-panel Hi-Z input included; track in realtime through authentic Neve, Manley and API preamp emulations.
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Apollo Monitor Correction: Sonarworks®-powered calibration for monitors and headphones so your mix translates in any room.*
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DUO Core hybrid DSP: combine hardware DSP with native processing for near-zero-latency UAD plug-ins and complex chains in larger sessions.
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UAD Console App workflow: Auto-Gain, Plug-In Scenes, Bass Management and immersive monitoring in one place.
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Expandable Apollo ecosystem: link up to four Thunderbolt Apollo interfaces for up to 128 channels as your studio grows.

Key Capabilities
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Realtime UAD tracking: record through UAD plug-ins (compression, EQ, preamps, tape) with ultra-low latency — what you track is what you keep.
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Auto-Gain: set proper levels across multiple inputs in seconds to avoid clipping and retakes.
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Bass Management: add a subwoofer to your monitoring so you hear all the low-end detail in your mixes.

Included Software: UAD Plug-In Bundles
UAD Analog Classics (included, 35 titles)
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Channel Strips & Preamps (6):Century Tube Channel Strip, CS-1 Channel Strip, LA-6176 Signature Channel Strip, Precision Channel Strip, UA 610-A Preamp & EQ, UA 610-B Preamp & EQ
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Compressors / Limiters (7):Fairchild 670 Legacy Compressor, Teletronix LA-2A Legacy Leveling Amplifier, Teletronix LA-2A Tube Compressor, Precision Buss Compressor, UA 1176 FET Compressor, UA 1176LN Legacy, UA 1176SE Legacy
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Equalizers (3):Precision Equalizer, Pultec EQP-1A Legacy EQ, Pultec Pro Legacy EQ
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Special Processing (5):Oxide Tape Recorder, Precision De-Esser, Precision Enhancer Hz, Precision Enhancer kHz, Vibe Analog Machines Essentials
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Instruments (1):PolyMAX Polyphonic Synth
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Delay & Modulation (3):Galaxy Tape Echo, Precision Delay Mod, Precision Delay Mod L
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Reverbs & Rooms (2):Precision Reflection Engine, Pure Plate Reverb
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Mastering (3):Precision Limiter, Precision Maximizer, Precision Multiband
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Guitar & Bass (5):Bermuda Triangle, Raw Distortion, TS Overdrive Pedal, UAD Lion ’68 Super Lead Amp, UAD Showtime ’64 Tube Amp
UAD Analog Classics Pro (included, 91 titles; superset incl. base)
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Vocals & Pitch Correction (2):Topline Vocal Suite, Topline Key Finder
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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
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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
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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
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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
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Instruments (1):PolyMAX Polyphonic Synth
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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
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Reverbs & Rooms (6):Lexicon 224 Digital Reverb, Ocean Way Studios Deluxe, Ocean Way Studios, Precision Reflection Engine, Pure Plate Reverb, UAD Sound City Studios
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Mastering (3):Precision Limiter, Precision Maximizer, Precision Multiband
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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
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LUNA Extensions (4):Ampex ATR-102 Master Tape Extension, API Summing Extension, API Vision Console Emulation, Studer A800 Multitrack Tape Extension
* Actual titles depend on the selected version (UAD Analog Classics / Analog Classics Pro); plug-ins require registration/activation via UA Connect.
Tech Specs
| Interface | Thunderbolt audio interface (10 x 6, desktop) |
| Conversion | elite-class Apollo X Gen 2, 24-bit / 192 kHz |
| D/A Dynamic Range | 129 dB |
| DSP | DUO Core |
| Unison Mic Preamps | 2 (with front-panel Hi-Z input) |
| Optical Input | Toslink (ADAT or S/PDIF) |
| Monitor / Line Out | 2 x 1/4" monitor out, 2 x 1/4" line out (ALT) |
| Headphone Out | 1 x 1/4" TRS |
| Monitor Correction | Apollo Monitor Correction (Sonarworks®)* |
| Plug-in Formats | VST, AU, AAX 64 (200+ UAD plug-ins) |
| Included Software | UAD Analog Classics or UAD Analog Classics Pro (up to 80+ titles) |
| Compatibility | Mac / Windows (LUNA, Logic Pro, Pro Tools, Cubase, Ableton Live, etc.) |
| Expansion | Up to 4 Thunderbolt Apollo interfaces, 128 channels |
| Brand | Universal Audio |
| Model | Apollo Twin X DUO Gen 2 |
Apollo Twin X FAQ
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- Fast Shipping: In-stock items will be shipped within 24 business hours.
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Shipping times are calculated based on business days. Actual warranty follows the manufacturer’s policy. THINK2 provides integration and support assistance.
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- DOA / Non-human defects: Within 7 days of purchase, after verification, customers may request return or replacement.
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