Suggested Accessories
Description
Record and mix larger sessions and hear every detail with the next generation of UA’s Apollo x4 interfaces, featuring highest-resolution audio conversion, four Unison™ mic preamps, and QUAD Core DSP processing letting you record in realtime through UAD plug-ins from Neve, Manley, Avalon, SSL, and hundreds more. Trusted by top artists and producers the world over, Apollo x4 levels up your productions with timeless sound and legendary UA craftsmanship, built to inspire your next collaboration.
Features:
Get the Most Powerful Desktop Apollo Ever
Universal Audio built Apollo x4 to expand on the gold-standard Apollo Twin, the interface that single-handedly revolutionized home and project studio recording. With its expanded I/O count, unprecedented dynamic range, and elite-class 24-bit / 192 kHz audio conversion — now with enhanced monitoring — Apollo x4 puts the sound of the stars in reach for project studios and collaborators.
Record Through Iconic Preamps
With four Unison™ preamps and dual front panel Hi‑Z instrument inputs, Apollo x4 lets you track in realtime through preamp and channel strip plug-ins from Neve, Manley, API, and dozens more, giving you the same rich analog textures used on the greatest recordings of our time.
Mix with Authentic Analog Sounds
Right out of the box, Apollo x4 gives you the tools used in the world’s biggest recording studios. Along with included Teletronix LA-2A compressors, Pultec EQs, and amps from Marshall and Ampeg — you can tap into the entire library of over 200 UAD plug-ins and unlock proven hit-making sounds like Ocean Way Studios, Capitol Chambers, and many more.
Hear the Details Like Never Before
Now in its Gen 2 design, Apollo x4 features UA’s highest-resolution D/A converters ever paired with Apollo Monitor Correction powered by Sonarworks.® This means that when you playback your audio through monitors or headphones, 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.
Find Your Flow in the UAD Console App
Just like an analog studio, where a console is the heart of the workflow, Apollo x4 has a powerful digital mixing engine where you control plug-in routing and monitoring. And with the latest features like Auto-Gain, Bass Management and Plug-In Scenes, it’s easy to find a flow that fits your needs.
A Hybrid System, Made for Your Mission
Combine Apollo x4’s QUAD Core DSP with native processing from your host computer to produce large sessions with complex plug-in chains — 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, and control it all from your desktop using Apollo x4. So no matter how far your music takes you, an Apollo will always be in reach.
Included Plug-Ins in Essentials+ Edition
Channel Strips / Preamps (6)
Century Tube Channel Strip
CS-1 Channel Strip
Helios Type 69 Preamp / EQ
Precision Channel Strip
UA 610-A Preamp / EQ
UA 610-B Preamp / EQ
Compressors / Limiters (7)
Fairchild 670 Legacy
Teletronix LA-2A Classic Leveler
Teletronix LA-2A Gray Classic Leveler
Teletronix LA-2A Silver Classic Leveler
Teletronix LA-2A Legacy Leveling Amplifier
UA 1176LN Legacy
UA 1176SE Legacy
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 (4)
Auto-Tune Realtime Access
Oxide Tape Recorder
Precision Enhancer Hz
Verve Analog Machines Essentials
Instruments (1)
PolyMAX Polyphonic Synth
Delay / Modulation (3)
Galaxy Tape Echo
Precision Delay Mod
Precision Delay Mod L
Reverbs / Rooms (3)
Precision Reflection Engine
Pure Plate Reverb
RealVerb Pro Custom Room Modeler
Guitar / Bass (3)
Ampeg SVT-VR Classic Bass Amplifier
Marshall Plexi Classic Amplifier
Raw Distortion
More +
Product Specs
SYSTEM | |
I/O Complement | |
Simultaneous Channel I/O Count (analog + digital) | 12 x 18 (ADAT mode) |
Microphone Inputs | Four |
High Impedance (Hi-Z) Instrument Inputs | Two |
Analog Line Inputs | Four |
Analog Line Outputs (DC coupled) | Four (six including Monitor outputs) |
Analog Monitor Outputs (DC coupled) | Two (one stereo pair) |
Headphone Outputs | Two stereo |
Digital Audio Ports (ADAT or S/PDIF, selectable) | One input, one output |
Thunderbolt 3 Port* | One |
*(Mac only) Thunderbolt 1 and 2 connections supported via Apple Thunderbolt 3 to Thunderbolt 2 adapter | |
A/D – D/A Conversion | |
Simultaneous A/D conversion | Four channels |
Simultaneous D/A conversion | 10 channels |
Supported Sample Rates (kHz) | 44.1, 48, 88.2, 96, 176.4, 192 |
Bit Depth Per Sample | 24 |
Analog Round-Trip Latency | 1.1 milliseconds @ 96 kHz sample rate |
Analog Round-Trip Latency through four UAD legacy plug-ins (included) via UAD Console software | 1.1 milliseconds @ 96 kHz sample rate (no additional latency via Realtime UAD Processing) |
ANALOG I/O | |
Microphone Inputs 1 – 4 | |
Frequency Response | 20 Hz – 20 kHz, ±0.05 dB |
Dynamic Range | 123 dB (A–weighted) |
THD + Noise (1 kHz @ 24 dBu, -1 dBFS) | -117 dB (0.00014%) |
Maximum Input Level (PAD on) | 25 dBu |
Default Input Impedance (variable via Unison plug-ins) | 5.4 K Ω |
Gain Range | +10 dB to +65 dB |
Pad Attenuation (switchable per mic input) | 20 dB (variable via Unison plug-ins) |
Phantom Power (switchable per mic input) | +48V |
Connector Type | XLR female, pin 2 positive (combo XLR/TRS) |
ANALOG I/O | |
Hi-Z Inputs 1 & 2 (600 K Ω input termination) | |
Frequency Response | 20 Hz – 20 kHz, ±0.05 dB |
Dynamic Range | 122 dB (A–weighted) |
THD + Noise (1 kHz @ 11.4 dBu, -1 dBFS) | -111 dB (0.00028%) |
Maximum Input Level (at minimum gain) | 12.4 dBu |
Default Input Impedance (variable via Unison plug-ins) | 1 M Ω |
Gain Range | +10 dB to +65 dB |
Connector Type | ¼" female TS unbalanced |
Line Inputs 1 – 4 | |
Frequency Response | 20 Hz – 20 kHz, ±0.05 dB |
Dynamic Range | 124 dB (A–weighted) |
THD + Noise (1 kHz @ 19.2 dBu, -1 dBFS) | -115 dB (0.00018%) |
Maximum Input Level (reference level @ +4 dBu) | 20.2 dBu |
Input Impedance | 10 K Ω |
Gain Range | +10 dB to +65 dB |
Connector Type | ¼" female TRS balanced |
Line Outputs 1 – 4 | |
Frequency Response | 20 Hz – 20 kHz, ±0.05 dB |
Dynamic Range | 128 dB (A–weighted) |
THD + Noise (1 kHz @ 19.2 dBu, -1 dBFS) | -117 dB (0.00014%) |
Maximum Output Level Reference level @ +4 dBu Reference level @ -10 dBV |
20.2 dBu 14.5 dBu |
Output Impedance | 100 Ω |
Connector Type | ¼" female TRS balanced |
Monitor Outputs L & R | |
Frequency Response | 20 Hz – 20 kHz, ±0.04 dB |
Dynamic Range | 129 dB (A–weighted) |
THD + Noise (1 kHz @ 19.2 dBu, -1 dBFS) | -120 dB (0.0001%) |
Maximum Output Level | 20.2 dBu |
Output Impedance | 100 Ω |
Connector Type | ¼" female TRS balanced |
Stereo Headphone Outputs 1 & 2 | |
Frequency Response | 20 Hz – 20 kHz, ±0.01 dB |
Dynamic Range | 124 dB (A–weighted) |
THD + Noise 300 Ω load (1 kHz @ 14.4 dBu, -1 dBFS) 600 Ω load (1 kHz @ 14.8 dBu, -1 dBFS) |
-108 dB (0.00040%) -112 dB (0.00025%) |
Maximum Output Level 300 Ω load (1 kHz @ 14.4 dBu, -1 dBFS) 600 Ω load (1 kHz @ 14.8 dBu, -1 dBFS) |
15.4 dBu 15.8 dBu |
Maximum Output Power 300 Ω load 600 Ω load |
68 mW RMS 38 mW RMS |
Connector Type | ¼" female TRS stereo |
DIGITAL I/O | |
Digital Audio Port (ADAT or S/PDIF, selectable) | One input, one output |
Connector Type | Optical TOSLINK JIS F05 |
S/PDIF | |
S/PDIF Channels | One stereo input, one stereo output |
Format | IEC 958 |
Supported Sample Rates (kHz) | 44.1, 48, 88.2, 96 |
ADAT | |
ADAT Channels | Up to eight input & eight output channels |
Format | ADAT Lightpipe with S/MUX |
Supported Sample Rates (kHz) | 44.1, 48, 88.2, 96, 176.4, 192 |
Channel Assignments @ 44.1 kHz, 48 kHz | Channels 1 – 8 |
Channel Assignments @ 88.2 kHz, 96 kHz | Channels 1 – 4 |
Channel Assignments @ 176.4 kHz, 192 kHz | Channels 1 – 2 |
Clock Synchronization Sources | |
Internal, ADAT, S/PDIF | Conditional per selected digital input type |
ELECTRICAL | |
Power Supply | External AC-to-DC power supply, level VI compliant |
AC Input Connector Type | IEC C8, non-polarized |
AC Requirements | 100V – 240V AC, ≈ 50 – 60 Hz, 1.2 A MAX |
DC Connector Type | Male barrel plug, 2.1 mm x 5.5 mm, center positive |
DC Requirements | 12 VDC, ±5% |
Maximum Power Consumption | 19 Watts (when portable host computer not charging) |
ENVIRONMENTAL | |
Ambient Temperature Range | 32º to 104º F (0º to 40º C) |
MECHANICAL | |
Dimensions | |
Width | 9.17" (232.98 mm) |
Height | 2.51" (65.81 mm) |
Depth, Chassis Only | 5.87" (149.13 mm) |
Depth, Including Knob & Jack Protrusions | 6.12" (155.60 mm) |
Shipping Box (Length x Width x Height) | 11" x 8" x 5" (279 mm x 203 mm x 127 mm) |
Weight | |
Shipping Weight (with box & accessories) | 5.86 lbs (2.66 kg) |
Weight (bare unit) | 3.2 lbs (1.47 kg) |
Package Contents | |
Apollo x4 Gen 2 Audio Interface | |
External Power Supply | |
AC Power Cable (IEC C7, non-polarized) | Region specific (USA, EU, UK, ANZ, or Japan) |
Getting Started URL Card |
More +
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