Apollo x4 Gen 2 Essential +

UAD Analog Classics Plug-Ins
Includes 30+ UAD Analog Classics plug-ins to help you record and mix with classic studio sound right away.

Elite Apollo Sound
Capture clear, detailed recordings with the trusted sound quality Apollo interfaces are known for.

Four Unison Preamps
Record vocals, guitars, and instruments through authentic analog-style preamp tones.

Realtime UAD Processing
Track through UAD plug-ins while you record, so performances feel polished and inspiring from the start.

Auto-Gain
Set input levels quickly and easily, so you can stay focused on the take.

Apollo Monitor Correction
Hear your mixes more accurately through speakers or headphones for better decisions while you work.

Bass Management
Add a subwoofer to your setup and hear low-end detail with more confidence.

UAD Console Workflow
Control monitoring, plug-ins, cue mixes, and scenes from one simple recording app.

Expandable Studio Setup
Grow your system over time by connecting additional compatible Apollo interfaces.

Premium Desktop Design
A compact desktop interface built for professional recording, mixing, and collaboration.

General Specifications
Device Type: Desktop Thunderbolt 3 audio interface
Version: Essentials+
Software Bundle: 30+ UAD Analog Classics plug-ins
Simultaneous I/O: 12 x 18
DSP Processing: QUAD Core realtime UAD processing
Audio Resolution: 24-bit / 192 kHz
Conversion: Elite-class Apollo X Gen 2 A/D and D/A
Monitor Dynamic Range: 129 dB

Computer Connectivity
Connection Type: Thunderbolt 3
Thunderbolt Ports: 1
Host Protocol: PCIe over Thunderbolt
Bus Power: Not supported
Mac Legacy Thunderbolt Support: Thunderbolt 1 / Thunderbolt 2 via adapter
Windows Legacy Thunderbolt Support: Thunderbolt 1 / Thunderbolt 2 not supported

Analog Inputs
Mic Inputs: 4 x combo XLR/TRS
Line Inputs: 4 x 1/4" TRS
Hi-Z Instrument Inputs: 2 x 1/4" TS
Mic Preamp Type: Digitally controlled analog
Unison Preamps: 4
Mic Gain Range: +10 dB to +65 dB
Line Gain Range: +10 dB to +65 dB
Hi-Z Gain Range: +10 dB to +65 dB
Phantom Power: +48V per mic input
Pad: 20 dB per mic input
Low Cut Filter: 75 Hz
Polarity Inversion: Per input channel
Stereo Linking: Channels 1+2 or 3+4

Analog Outputs
Monitor Outputs: 2 x 1/4" TRS
Line Outputs: 4 x 1/4" TRS
Headphone Outputs: 2 x 1/4" TRS stereo
Monitor Output Type: DC coupled
Line Output Type: DC coupled
Monitor Maximum Output Level: 20.2 dBu
Line Maximum Output Level: 20.2 dBu at +4 dBu reference
Headphone Maximum Output Level: 15.4 dBu at 300 Ω, 15.8 dBu at 600 Ω

Digital I/O
Optical Ports: 1 input, 1 output
Optical Format: ADAT or S/PDIF selectable
Optical Connector: TOSLINK JIS F05
ADAT Channels: Up to 8 input and 8 output
S/PDIF Channels: 2 input and 2 output
S/PDIF Sample Rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz
ADAT Sample Rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
Clock Sources: Internal, ADAT, S/PDIF

Audio Performance
Mic Input Frequency Response: 20 Hz – 20 kHz, ±0.05 dB
Mic Input Dynamic Range: 123 dB A-weighted
Mic Input THD+N: -117 dB
Line Input Frequency Response: 20 Hz – 20 kHz, ±0.05 dB
Line Input Dynamic Range: 124 dB A-weighted
Line Input THD+N: -115 dB
Hi-Z Input Frequency Response: 20 Hz – 20 kHz, ±0.05 dB
Hi-Z Input Dynamic Range: 122 dB A-weighted
Hi-Z Input THD+N: -111 dB
Monitor Output Frequency Response: 20 Hz – 20 kHz, ±0.04 dB
Monitor Output Dynamic Range: 129 dB A-weighted
Monitor Output THD+N: -120 dB
Headphone Output Frequency Response: 20 Hz – 20 kHz, ±0.01 dB
Headphone Output Dynamic Range: 124 dB A-weighted

Latency
Analog Round-Trip Latency: 1.1 ms at 96 kHz
Realtime UAD Processing Latency: 1.1 ms at 96 kHz through four included UAD legacy plug-ins
Additional Realtime Processing Latency: None via UAD Console

Monitoring
Monitor Controller: Integrated
Monitor Controls: Level, mute, dim, mono, alternate speakers, talkback
Talkback Microphone: Built-in
Headphone Output Control: Independent
Cue Mix Support: Via UAD Console
Bass Management: Supported
Monitor Correction: Supported via Sonarworks-powered Apollo Monitor Correction

Software
Control Software: UAD Console
Plug-In Formats: VST, AU, AAX 64
DAW Compatibility: LUNA, Logic Pro, Pro Tools, Cubase, Ableton Live
Realtime Plug-In Processing: Analog and digital inputs
Virtual I/O: Supported
Auxiliary Buses: 2 stereo
Session Recall: Console Recall plug-in
System Monitoring: UAD Meter & Control Panel

Included Plug-Ins
Plug-In Count: 30+
Channel Strips & Preamps: 6
Compressors / Limiters: 7
Equalizers: 3
Special Processing: 5
Instruments: 1
Delay & Modulation: 3
Reverbs & Rooms: 2
Mastering: 3
Guitar & Bass: 5

Power
Power Supply: External AC-to-DC
AC Input: 100V – 240V AC, 50 – 60 Hz
DC Input: 12 VDC, 4.2 A
Maximum Power Consumption: 19 W
Power Connector: Locking 2.1 mm x 5.5 mm barrel

Physical
Width: 9.17" / 232.98 mm
Height: 2.51" / 65.81 mm
Depth: 6.12" / 155.60 mm including knob and jack protrusions
Unit Weight: 3.2 lb / 1.47 kg
Security Slot: Kensington
Operating Temperature: 32°F – 104°F / 0°C – 40°C