Other Products ｜Universal Audio Apollo x4 Gen 2 Thunderbolt 3 Audio Interface with Essentials+ Bundle

Key Features

Musicians, Producers & Project Studios
30+ UAD Plug-Ins, Real-Time Processing
External Power Supply, Mac/Windows
4 Unison Mic/Line Pre, 2 Hi-Z In
2 Headphone Out, 6 Line/Monitor Out
Gen 2 Elite-Class 24-Bit / 192 kHz AD/DA
ADAT or S/PDIF I/O
Auto-Gain Control, Monitor Correction
Monitoring and Talkback Control
Bass Management

 
Overview
Ideal for musicians, producers, and engineers working in project studios, the Universal Audio Apollo x4 Gen 2 with Essentials+ Bundle is a 12x18 desktop Thunderbolt 3 audio interface that offers four Unison mic/line preamps with Auto-Gain, flagship, Gen 2 Elite-Class 24-bit / 192 kHz AD/DA conversion, and QUAD Core DSP for real-time UAD plug-in processing over Thunderbolt at near-zero latency—on Mac and Windows computers. The Essentials+ Bundle lets you mix and record live performances with 36 UAD plug-ins including 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 x4 Gen 2 to professional studio gear with 4x4 analog line-level I/O, two Hi-Z instrument inputs, and two monitor outputs via 1/4" connections.  An optical ADAT or S/PDIF I/O is also available for connection to professional, digital outboard hardware. You can mix with confidence in any room using Apollo Monitor Correction powered by Sonarworks. 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.Key Specs

Channels of I/O

12 Inputs / 18 Outputs

Maximum Sampling Rate

192 kHz / 24-Bit

Number of Microphone Inputs

4

Analog Audio I/O

4x Combo XLR-1/4" TRS Balanced Mic/Line Input2x 1/4" TS Unbalanced Hi-Z Input4x 1/4" TRS Balanced Line Output2x 1/4" TRS Headphone Output2x 1/4" TRS Balanced Monitor Output
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Digital Audio I/O

1x TOSLINK Optical ADAT / S/PDIF Input (S/MUX Support)1x TOSLINK Optical ADAT / S/PDIF Output (S/MUX Support)

Host Connection

1x USB-C (Class-Compliant)

Power Requirements

AC/DC Power Adapter (Included)

Channels of I/O

12 Inputs / 18 Outputs

Built-In DSP

Quad-Core

Maximum Sampling Rate

192 kHz / 24-Bit

Number of Microphone Inputs

4

Built-In Microphone

No

Input Level Adjustment

1x Knob

Signal Processing

Pad

-20 dB

Gain/Trim Range

Mic/Line Inputs:+10 to +65 dB

High-Pass Filter

75 Hz

Solo/Mute

Mute per Master

Connectivity

Analog Audio I/O

4x Combo XLR-1/4" TRS Balanced Mic/Line Input2x 1/4" TS Unbalanced Hi-Z Input4x 1/4" TRS Balanced Line Output2x 1/4" TRS Headphone Output2x 1/4" TRS Balanced Monitor Output

Phantom Power

48 V

Digital Audio I/O

1x TOSLINK Optical ADAT / S/PDIF Input (S/MUX Support)1x TOSLINK Optical ADAT / S/PDIF Output (S/MUX Support)

Host Connection

1x USB-C (Class-Compliant)

Host Connection Protocol

Thunderbolt 3

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 dBLine Outputs:20 Hz to 20 kHz 0.05 dBHeadphone Outputs:20 Hz to 20 kHz ±0.01 dBMonitor Outputs:20 Hz to 20 kHz ±0.04 dB

Maximum Input Level

Mic Inputs:25 dBu (Pad On)Line Inputs:20.2 dBu (Reference Level at +4 dBu)Hi-Z Inputs:12.4 dBu (at Minimum Gain)

Maximum Output Level

Line Outputs:20.2 dBu (Reference Level at +4 dBu)14.5 dBu (Reference Level at -10 dBu)Headphone Outputs:15.4 dBu (300 Ohms Load)15.8 dBu (600 Ohms Load)Monitor Outputs:20.2 dBu

Headphone Output Power

68 mW into 300 Ohms38 mW into 600 Ohms

Impedance

Mic Inputs:5.4 KilohmsLine/Monitor Outputs:10 KilohmsHi-Z Inputs:1 Megohm

Dynamic Range

Hi-Z Inputs:122 dB (A-Weighted)Line Inputs:124 dB (A-Weighted)Mic Inputs:123 dB (A-Weighted)Headphone Outputs:124 dB (A-Weighted)Line Outputs:128 dB (A-Weighted)Monitor Outputs:129 dB (A-Weighted)

THD+N

Mic Inputs:-117 dB / 0.00014%Hi-Z Inputs:-111 dB / 0.00028%Line Inputs:-115 dB / 0.00018%Line Outputs:-117 dB / 0.00014%Monitor Outputs:-120 dB / 0.0001%Headphone Outputs:-108 dB / 0.0004% (300 Ohms)-112 dB / 0.00025% (600 Ohms)

Digital Audio

Sample Rates

Up to 192 kHz

Sample Rate Conversion

No

Bit Depths

24-Bit

Latency

A/D Conversion:1.1 ms at 96 kHz

Sync Sources

ADAT, Internal, S/PDIF

Audio Storage & Playback

Media/Memory Card Slot

No

Compatibility

OS Compatibility

Windows / macOS

Mobile Device Compatibility

No

Required Hardware

Thunderbolt 3 Port

Power

Power Requirements

AC/DC Power Adapter (Included)

AC Input Power

100 to 240 VAC, 50 / 60 Hz (1.2 A)

AC/DC Power Adapter

12 VDC

Power Consumption

19 W

Physical

Operating Conditions

32 to 104°F / 0 to 40°C 

Dimensions

9.17 x 5.87 x 2.51" / 23.29 x 14.91 x 6.38 cm9.17 x 6.12 x 2.51" / 23.29 x 15.54 x 6.38 cm (Including Controls and Protrusions)

Weight

3.2 lb / 1.5 kg

What's in the Box:

Universal Audio Apollo x4 Gen 2 Thunderbolt 3 Audio Interface with Essentials+ Bundle
External Power Supply
AC Power Cable (IEC)
Limited 1-Year Manufacturer Warranty 
Brand:Universal AudioSKU:APX4G2-ESSTags:Apollo x4 Gen 2, APX4G2-ESS, audio essentials bundle, audio interface, Studio Recording, Thunderbolt 3 audio interface, Universal Audio Apollo x4