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Universal Audio Apollo Twin X DUO Gen 2 Thunderbolt 3 Audio Interface with Studio+ Bundle

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Universal Audio Apollo Twin X DUO Gen 2 Thunderbolt 3 Audio Interface with Studio+ Bundle
Key Features
  • Musicians, Producers, and Songwriters
  • 50+ Plug-Ins, DUO Core Real-Time DSP
  • External Power Supply, Mac/Windows
  • 2 Unison Mic/Line Pres, Hi-Z In
Ideal for musicians, producers, and songwriters working in project studios, the Universal Audio Apollo Twin X DUO Gen 2 with Studio+ Bundle is a 10x6 desktop Thunderbolt 3 audio interface that offers two Unison mic/line preamps with Auto-Gain, flagship, Gen 2 Elite-Class 24-bit / 192 kHz AD/DA conversion, and DUO Core DSP for real-time UAD plug-in processing over Thunderbolt at near-zero latency—on Mac and Windows computers. The Studio+ Bundle lets you mix and record live performances with 65 UAD plug-ins including Avalon channel strip, Manley preamp, Pultec EQ, Auto-Tune, classic LA-2A and 1176 compressors, and more. You can use Plug-In Scenes to recall settings instantly, even in the middle of a performance.
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Universal Audio Twin X DUO Overview

Desktop DUO Core Real-Time UAD DSP for Musicians, Producers, Songwriters
Ideal for musicians, producers, and songwriters working in project studios, the Universal Audio Apollo Twin X DUO Gen 2 with Studio+ Bundle is a 10x6 desktop Thunderbolt 3 audio interface that offers two Unison mic/line preamps with Auto-Gain, flagship, Gen 2 Elite-Class 24-bit / 192 kHz AD/DA conversion, and DUO Core DSP for real-time UAD plug-in processing over Thunderbolt at near-zero latency—on Mac and Windows computers. The Studio+ Bundle lets you mix and record live performances with 65 UAD plug-ins including Avalon channel strip, Manley preamp, Pultec EQ, Auto-Tune, classic LA-2A and 1176 compressors, and more. You can use Plug-In Scenes to recall settings instantly, even in the middle of a performance.

Easily connect the Apollo Twin X DUO Gen 2 to professional studio gear with 2 analog line-level I/O, two monitor outs, and a 1/4" Hi-Z instrument input. Add up to eight extra input channels via one optical ADAT input (or two S/PDIF channels) for connection to professional, digital outboard hardware. You can mix with confidence in any room using headphones with Sonarworks Apollo Monitor Correction. Hear all the low-end detail in your mixes using Bass Management to add a subwoofer to your monitor setup. Quickly set up low-latency cues, plug-in scenes with the UAD Console app.

What's New with Apollo X Gen 2?
  • New look and feel, updated industrial design with new knobs and switch caps
  • Improved Elite-Class Gen 2 D/A converters 
  • Improved monitor and headphone outputs for best-in-class critical listening
  • Even lower THD% and increased DNR
  • Assistive Auto-Gain, supporting one-click configuration across all input channels with select Unison preamps, for effortless recording
  • Built-in room and headphone correction enabling Sonarworks SoundID profiles to run on built-in DSP
  • Bass Management for subwoofers in both stereo and surround configurations
  • New UAD Console brings Auto-Gain, Unison, Apollo Room Correction, DSP Pairing, Dante Support, Multichannel Immersive Audio Monitoring, Bass Management, Plug-In Scenes over MIDI, and more—together under one roof
  • New Studio+ software bundle with UAD plug-ins and Instruments
Record Through Two Unison Preamps
  • With Unison technology, Apollo Twin X DUO lets you track in real time with the sound of classic EQ and compressors.
  • From Neve, API, Manley, Fender, and more, you get the same rich analog textures used on the greatest recordings of our time.
Hear the Details Like Never Before
  • Apollo Twin X DUO Gen 2 features UA's highest-resolution A/D and D/A converters, delivering 129 dB of dynamic range.
  • Paired with Apollo Monitor Correction powered by Sonarworks. So, you'll not only hear the most pristine representation of your recordings, there will be no surprises when you listen to your final mix or master on any stereo or surround system.
Track and Mix with Authentic Analog Sounds
  • Track through UAD plug-ins in real time and without latency.
  • Along with included LA-2A compressors, Pultec EQs, and amps from Marshall and Ampeg, you can tap into the entire library of over 200 UAD plug-ins to unlock proven hit-making sounds.
Auto-Gain: Never Miss The Take
  • Set input gain across multiple channels in seconds without fear of clipping using the new Auto-Gain feature—available on all microphone / line / Hi-Z preamp inputs.
  • Effortlessly set gain for recording during an auto-training time listening window, without having to worry or take a lot of time to find the perfect recording level.
Bass Management
  • Add a subwoofer with the new bass management feature for full-range stereo monitoring.
  • Speaker utility panel provides trim, mute, and solo per speaker output.
Find Your Flow in the UAD Console App
  •    Apollo Twin X DUO’s powerful digital mixing engine lets you control plug-in routing and monitoring.
  • With the latest features like Bass Management and Plug-In Scenes, it’s easy to find a flow that fits your needs.
A Hybrid System for Your Productions
  • Combine Apollo Twin X’s DUO Core DSP with native processing from your computer to produce large sessions with complex plug-in chains.
  • Experience a powerhouse hybrid workflow that outpaces any native-only recording setup.
Expand Your Studio as You Grow
  • Build your studio by linking up to four Thunderbolt Apollo interfaces with up to 128 channels of premium I/O to your DAW.
  • Control it all from your desktop using Apollo Twin X.
At a Glance
  • 10x6 Thunderbolt audio interface with DUO Core DSP real-time plug-in processing
  • Includes up to 50+ UAD plug-ins with Studio+ Edition
  • Two Unison mic preamps, Hi-Z instrument input, optical Toslink input (ADAT or S/PDIF)
  • Two 1/4" monitor outs, two 1/4" line outs (ALT), one 1/4" TRS headphone out
  • Elite-class Apollo X Gen 2 converters with 24-bit / 192 kHz resolution
  • Enhanced D/A for critical monitoring and playback with 129 dB dynamic range
  • Two SHARC processors
  • Calibrate your main monitor and headphone outputs with Apollo Monitor Correction powered by Sonarworks
  • Updated UAD Console app featuring Auto-Gain, Plug-In Scenes, subwoofer integration with Bass Management, immersive audio support, and more
  • Full-featured monitor controller with alternate speaker switching and integrated talkback for easy communication with talent
  • Onboard DSP supports over 200 UAD plug-ins via VST, AU, and AAX 64 formats in all major DAWs
  • Compatible with LUNA, Logic Pro, Pro Tools, Cubase, Ableton Live, and more
  • Expandable with Thunderbolt Apollo interfaces or select models over Dante
  • Free industry-leading technical support from knowledgeable audio engineers
56 Effects and Instruments, One Rack Space
Channel Strips and Preamps (9)
  • Avalon VT-737sp Channel Strip
  • Century Tube Channel Strip
  • CS-1 Channel Strip
  • Helios Type 69 Preamp and EQ
  • Manley Reference Microphone Preamp
  • Precision Channel Strip
  • UA 610-A Preamp and EQ
  • UA 610-B Preamp and EQ
  • V76 Preamplifier
Compressors/Limiters (17)
  • dbx 160 Compressor/Limiter  
  • Empirical Labs Distressor
  • Fairchild 670 Legacy
  • Fairchild 660 Compressor
  • Fairchild 670 Compressor
  • Teletronix LA-2 Classic Leveler
  • Teletronix LA-2A Gray Classic Leveler
  • Teletronix LA-2A Silver Classic Leveler
  • Teletronix LA-2A Legacy Leveling Amplifier 
  • Teletronix LA-3A Classic Audio Leveler
  • UA 1176 Rev A Classic Limiter
  • UA 1176AE Classic Limiter
  • UA 1176LN Rev E Classic Limiter
  • UA 1176LN Legacy
  • UA 1176SE Legacy
  • UA 175B Classic Limiter
  • UA 176 Classic Limiter
Equalizers (6)
  • 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 (6)
  • Auto-Tune Realtime Access
  • Auto-Tune Realtime X
  • Oxide Tape Recorder
  • Precision Enhancer Hz
  • Studer A800 Multichannel Tape Recorder
  • Verve Analog Machines Essentials
Delay and Modulation (6)
  • Brigade Chorus Pedal
  • Galaxy Tape Echo
  • Lexicon 224 Digital Reverb
  • Precision Delay Mod
  • Precision Delay Mod L
  • Studio D Chorus
Reverbs and Rooms (3)
  • Precision Reflection Engine
  • Pure Plate Reverb
  • RealVerb Pro Custom Room Modeler
Guitar and Bass (3)
  • Ampeg SVT-VR Classic Bass Amplifier
  • Marshall Plexi Classic Amplifier
  • Raw Distortion
Instruments (6)
  • Electra 88 Vintage Keyboard Studio
  • Moog Minimoog
  • Opal Morphing Synth
  • PolyMAX Polyphonic Synth
  • Ravel Grand Piano
  • Waterfall B3 Organ
UPC: 819937004728

Universal Audio Twin X DUO Specs

Key Specs
Channels of I/O
Analog:
2 Inputs / 4 Outputs at 192 kHz
ADAT:
8 Inputs / 0 Outputs at 44.1/48 kHz
4 Inputs / 0 Outputs at 88.2/96 kHz
2 Inputs / 0 Outputs at 176.4/192 kHz
S/PDIF:
2 Inputs / 0 Output at 44.1/48/88.2/96 kHz
Maximum Sampling Rate
192 kHz / 24-Bit
Number of Microphone Inputs
2
Analog Audio I/O
2x Combo XLR-1/4" TRS Mic/Line Input
1x 1/4" TS Hi-Z Input
2x 1/4" TRS Line Output
1x 1/4" TRS Headphone Output
2x 1/4" TRS Monitor Output
Digital Audio I/O
TOSLINK Optical ADAT / S/PDIF Input
Host Connection
1x USB-C
Power Requirements
AC/DC Power Adapter (Included)
General
Display
5x Multi-Segment LED Meter
Channels of I/O
Analog:
2 Inputs / 4 Outputs at 192 kHz
ADAT:
8 Inputs / 0 Outputs at 44.1/48 kHz
4 Inputs / 0 Outputs at 88.2/96 kHz
2 Inputs / 0 Outputs at 176.4/192 kHz
S/PDIF:
2 Inputs / 0 Output at 44.1/48/88.2/96 kHz
Built-In DSP
Yes
Maximum Sampling Rate
192 kHz / 24-Bit
Number of Microphone Inputs
2
Built-In Microphone
Yes
Input Level Adjustment
1x Knob
Signal Processing
Pad
Mic:
-20 dB (Switchable per Channel)
Gain/Trim Range
Mic/Line/Hi-Z Inputs:
+10 dB to +65 dB
High-Pass Filter
75 Hz
Solo/Mute
Mute per Master
Connectivity
Analog Audio I/O
2x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line Input
1x 1/4" TS Unbalanced Hi-Z Input (Front Panel)
2x 1/4" TRS Balanced/Unbalanced Line Output
1x 1/4" TRS Unbalanced Headphone Output
2x 1/4" TRS Balanced/Unbalanced Monitor Output
Phantom Power
48 V, Selectable On/Off (Selectable on Individual Inputs)
Digital Audio I/O
1x TOSLINK Optical ADAT / S/PDIF Input (S/MUX4 Support)
Host Connection / USB
1x USB-C
Host Connection Protocol
Thunderbolt 3, USB 3.1/3.2 Gen 2
USB (Non-Host)
No
Sync I/O
No
Network I/O
No
MIDI I/O
No
Expansion Slots
No
Wireless
No
Performance
Frequency Response
Mic, Line, Hi-Z Inputs:
20 Hz to 20 kHz ±0.05 dB
Line Outputs:
20 Hz to 20 kHz ±0.05 dB
Headphone, Monitor Outputs:
20 Hz to 20 kHz ±0.1 dB
Maximum Input Level
Mic Inputs:
25.6 dBu (with Pad)
Line Inputs:
20.2 dBu (Min Gain)
Hi-Z Inputs:
12.2 dBu (Min Gain)
Maximum Output Level
Line/Monitor Outputs:
20.2 dBu
Headphone Output Power
96 mW into 300 Ohms (Max)
Impedance
Mic Inputs:
5.4 Kilohms
Line Inputs:
10 Kilohms
Line Outputs:
100 Ohms
Hi-Z Inputs:
1 Megohm
Monitor Outputs:
100 Ohms
Dynamic Range
Hi-Z Inputs:
121 dBA (A-Weighted)
Line Inputs:
122 dBA (A-Weighted)
Mic Inputs:
123 dBA (A-Weighted)
Headphone Outputs:
124 dBA (A-Weighted)
Line Outputs:
126 dBA (A-Weighted)
Monitor Outputs:
127 dBA (A-Weighted)
THD+N
Mic Inputs:
-115 dB (1 kHz, at -1 dBFS)
Hi-Z Inputs:
-108 dB (1 kHz, at -1 dBFS)
Line Inputs:
-114 dB (1 kHz, at -1 dBFS)
Line Outputs:
-117 dB (1 kHz, at -1 dBFS)
Monitor Outputs:
-117 dB
Headphone Outputs:
-98 dB (1 kHz, at -1 dBFS)
Digital Audio
Sample Rates
44.1 to 192 kHz
Sample Rate Conversion
No
Bit Depths
24-Bit (AD/DA Conversion)
Latency
1.1 ms at 96 kHz (Input to Output)
Sync Sources
ADAT, Internal, S/PDIF
Audio Storage & Playback
Media/Memory Card Slot
No
Compatibility
OS Compatibility
Windows 10 or Later / macOS
Processor Requirement
PC:
Intel Core i7 or Better (64-Bit, Recommended)
Intel Xeon
AMD
Storage Requirements
10 GB
Mobile Device Compatibility
No
Required Hardware
Thunderbolt Port
USB Cable (Not Included)
Power
Power Requirements
AC/DC Power Adapter (Included)
AC Input Power
100 to 240 VAC, 50 / 60 Hz
AC/DC Power Adapter
12 VDC, Center-Positive (Included)
Power Consumption
15 W (Maximum)
Physical
Operating Conditions
32 to 104°F / 0 to 40°C
Dimensions
6.31 x 6.2 x 2.6" / 16.03 x 15.7 x 6.6 cm
Weight
2.2 lb / 1.0 kg (without Accessories)
Packaging Info
Package Weight
4.255 lb
Box Dimensions (LxWxH)
8.4 x 7.7 x 5.5"

Universal Audio Twin X DUO Reviews

A joy to use and superb sound quality

By Sonja
Rated 5 out of 5
Date: 2025-08-26

I don't know how but it does sound amazing in my setup, much better than previous interfaces I had. Also it really is a joy to use, intuitive and easy and hassle free.

Best interface in the market

By Alberto E
Rated 5 out of 5
Date: 2024-12-31

I recently upgraded to the Apollo x Twin, and it has completely elevated my workflow. The preamps are absolutely top-tier, offering professional studio-quality sound that captures every nuance with incredible clarity. The build quality is robust, and the interface itself is intuitive to use. Whether you’re recording vocals, instruments, or mixing, this interface delivers unmatched performance. Highly recommended for anyone looking to take their productions to the next level!

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