Apollo TWIN X DUO Gen 2 Studio +

Realtime Analog Sound
Record and monitor through vintage gear emulations with no noticeable delay.

Dual Unison Preamps
Capture vocals and instruments using emulated mic preamps from Neve, API, Manley, and more.

Built-In UAD Plug-In Processing
Run pro-quality compressors, EQs, reverbs, and amps directly on the device, without taxing your computer.

Studio+ Plug-In Bundle Included
Comes with a wide selection of premium UAD plug-ins for mixing and recording right out of the box.

High-Resolution Audio Conversion
Hear every detail with top-tier A/D and D/A converters and extended dynamic range.

Advanced Monitor Control
Easily manage speakers, headphones, talkback, and alternate outputs with front-panel controls.

DSP-Powered Workflow
Use built-in DUO Core processors to stack effects and handle larger sessions without latency.

Easy Software Integration
Works seamlessly with major DAWs and includes the UAD Console for intuitive routing and control.

Flexible Expansion Options
Connect up to four Apollo interfaces via Thunderbolt to scale your studio setup as you grow.

Headphone and Instrument Ready
Front panel access to Hi-Z instrument input and headphone output for quick, high-quality tracking.

General Specifications
Device Type: Desktop Thunderbolt audio interface
Software Bbundle: 80+ UAD Analog Classics Pro plug-ins
I/O Count: 10 x 6 simultaneous channels
DSP Processing: DUO Core
Audio Resolution: 24-bit / 192 kHz
Connection Protocol: Thunderbolt 3
Form Factor: Desktop

Analog Inputs
Microphone Inputs: 2 x XLR combo
Line Inputs: 2 x 1/4" TRS combo
Instrument Input: 1 x 1/4" Hi-Z TS
Mic Preamp Type: Digitally controlled analog
Unison Preamps: 2
Phantom Power: +48V, switchable per mic input
Pad: 20 dB, switchable per mic input
Low Cut Filter: 75 Hz
Polarity Inversion: Switchable
Stereo Linking: Supported

Analog Outputs
Monitor Outputs: 2 x 1/4" TRS balanced
Line Outputs: 2 x 1/4" TRS balanced
Headphone Output: 1 x 1/4" TRS stereo
DC-Coupled Outputs: Monitor outputs and line outputs
Alternate Speaker Switching: Supported
Talkback Microphone: Built-in

Digital I/O
Digital Input: Optical TOSLINK
Digital Formats: ADAT, S/PDIF
ADAT Channels: Up to 8 input channels
S/PDIF Channels: 2 input channels
ADAT Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
S/PDIF Sample Rates: 44.1, 48, 88.2, 96 kHz
Clock Sources: Internal, ADAT, S/PDIF

Conversion
A/D Conversion: 2 channels
D/A Conversion: 6 channels
Available Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
Bit Depth: 24-bit
Monitor D/A Dynamic Range: 129 dB A-weighted
Analog Round-Trip Latency: 1.1 ms at 96 kHz
Realtime UAD Processing Latency: 1.1 ms at 96 kHz through four legacy UAD plug-ins

Microphone Input Performance
Frequency Response: 20 Hz – 20 kHz, ±0.04 dB
Dynamic Range: 123 dB A-weighted
THD+N: -115 dB, 0.00018%
Maximum Input Level: 25 dBu with pad enabled
Default Input Impedance: 5.4 kΩ
Gain Range: +10 dB to +65 dB
Connector Type: XLR female, pin 2 positive

Hi-Z Input Performance
Frequency Response: 20 Hz – 20 kHz, ±0.05 dB
Dynamic Range: 121 dB A-weighted
THD+N: -110 dB, 0.00032%
Maximum Input Level: 12.4 dBu
Default Input Impedance: 1 MΩ
Gain Range: +10 dB to +65 dB
Connector Type: 1/4" TS unbalanced

Line Input Performance
Frequency Response: 20 Hz – 20 kHz, ±0.04 dB
Dynamic Range: 122 dB A-weighted
THD+N: -115 dB, 0.00018%
Maximum Input Level: 20.2 dBu
Input Impedance: 10 kΩ
Gain Range: +10 dB to +65 dB
Connector Type: 1/4" TRS balanced

Line Output Performance
Frequency Response: 20 Hz – 20 kHz, ±0.01 dB
Dynamic Range: 127 dB A-weighted
THD+N: -119 dB, 0.00011%
Maximum Output Level: 20.2 dBu at +4 dBu reference
Maximum Output Level: 14.5 dBu at -10 dBV reference
Output Impedance: 100 Ω
Connector Type: 1/4" TRS balanced

Monitor Output Performance
Frequency Response: 20 Hz – 20 kHz, ±0.04 dB
Dynamic Range: 129 dB A-weighted
THD+N: -120 dB, 0.0001%
Maximum Output Level: 20.2 dBu
Output Impedance: 100 Ω
Connector Type: 1/4" TRS balanced

Headphone Output Performance
Frequency Response: 20 Hz – 20 kHz, ±0.01 dB
Dynamic Range: 124 dB A-weighted
THD+N: -112 dB, 0.00025% at 300 Ω load
THD+N: -114 dB, 0.00019% at 600 Ω load
Maximum Output Level: 15.4 dBu at 300 Ω load
Maximum Output Level: 15.8 dBu at 600 Ω load
Maximum Output Power: 69 mW RMS at 300 Ω load
Maximum Output Power: 38 mW RMS at 600 Ω load
Connector Type: 1/4" TRS stereo

Software and Processing
Realtime DSP Processing: Supported
UAD Plug-In Support: 200+ titles
Plug-In Formats: VST, AU, AAX 64
DAW Compatibility: LUNA, Logic Pro, Pro Tools, Cubase, Ableton Live
Console Software: UAD Console
Console Features: Auto-Gain, Plug-In Scenes, Bass Management, immersive audio monitoring
Monitor Correction: Main monitor and headphone calibration support
Virtual I/O: Supported
Auxiliary Buses: 2 independent stereo buses
Console Recall Plug-In: Supported

Studio+ Included Plug-In Categories
Vocals and Pitch Correction: 2 plug-ins
Channel Strips and Preamps: 19 plug-ins
Compressors and Limiters: 21 plug-ins
Equalizers: 9 plug-ins
Special Processing: 9 plug-ins
Instruments: 1 plug-in
Delay and Modulation: 8 plug-ins
Reverbs and Rooms: 6 plug-ins
Mastering: 3 plug-ins
Guitar and Bass: 9 plug-ins
LUNA Extensions: 4 extensions

Expansion
Thunderbolt Apollo Expansion: Up to 4 Apollo interfaces
Maximum Expanded I/O: Up to 128 channels
UAD Device Expansion: Up to 6 UAD devices total
Desktop Apollo Limit: 1 desktop Apollo unit per Thunderbolt system

Power
Power Supply: External AC-to-DC
AC Input Connector: IEC C8
AC Requirements: 100–240V AC, 50–60 Hz, 1.2 A max
DC Connector: 2.1 mm x 5.5 mm center-positive barrel
DC Requirements: 12 VDC, 4.2 A
Maximum Power Consumption: 15 W
Bus Power: Not supported

Physical Specifications
Width: 6.31" / 160.34 mm
Height: 2.59" / 65.81 mm
Depth: 5.89" / 149.59 mm
Depth Including Knob and Jack Protrusions: 6.14" / 156.10 mm
Weight: 2.29 lb / 1.04 kg
Shipping Weight: 4.37 lb / 1.98 kg
Operating Temperature: 32°F – 104°F / 0°C – 40°C