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Universal Audio Apollo x4 Thunderbolt 3 Desktop Audio Interface

Item #: 819937002915

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  • High-Speed Thunderbolt 3 Host Connection
  • QUAD Core Realtime UAD Processing
  • Four Unison-Enabled Mic Preamps
  • Two 1/4″ Hi-Z Inputs and Optical I/O

1571836066_1511713

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Overview

The Universal Audio Apollo x4 is a desktop Thunderbolt 3 audio interface with real-time UAD processing designed for high-resolution recording and mixing for musicians, producers, and audio engineers in mobile production rigs and project studios. Delivering the sound, feel, and flow of analog recording with low distortion and an immense D/A dynamic range of 127 dB, this 12 x 18 interface combines versatile inputs and outputs, a robust plug-in bundle, and powerful UAD-2 QUAD Core processing.

Designed to perform a central role in a modern studio, the Apollo x4 offers elite-class conversion akin to the Apollo X rackmount interfaces, plus an array of analog and digital I/O. The interface features four XLR-1/4″ combo inputs and two 1/4″ Hi-Z inputs, all with Unison integration for UAD emulations of classic analog preamps, Each analog input boasts a switchable low-cut filter, 48V phantom power, pad, polarity inversion, and stereo linking. The optical digital ports accommodate up eight channels of ADAT I/O or two channels of S/PDIF I/O for easy hookup of external equipment.

The built-in QUAD Core processing allows you to monitor and record audio using classic analog emulations with near-zero latency. The included Realtime Analog Classics Plus plug-in bundle empowers you with 16 plug-ins ranging from compressors and EQs to virtual guitar/bass amps and time-based processors. The included Console application provides control and recall of all interface and UAD plug-in settings including channel-strip presets, drag-and-drop functionality, and dynamically resizable windows. Core Audio and Windows drivers ensure compatibility with all major DAWs, including Pro Tools, Logic Pro, Cubase, Live, and more.

The Apollo x4 offers a comprehensive monitor section with talkback functionality and dedicated front-panel controls for Alt Speakers, Dim, and Mono functions, as well as input and output metering capabilities. In addition to the dedicated stereo monitor feed and dual independent headphone outputs, four 1/4″ line outputs are available for connection to power amps, active monitors, or an analog mixer. A total of four Apollo interfaces and six total UAD-2 devices can be combined, allowing Thunderbolt users the ability to expand their I/O and DSP.

General Features

  • Track, overdub, and mix, with high-resolution A/D-D/A conversion and DSP-powered plug-ins
  • Integrated talkback and cues for easy communication and slate functionality
  • Built-in monitor controller with monitor remote functions and mono, mute, dim, and alt monitor controls
  • Comprehensive front-panel metering and controls
  • Unison technology provides models of classic tube and transformer-based mic preamps and guitar amps
  • UAD-2 QUAD Core processing for tracking through models of vintage compressors, EQs, tape machines, mic preamps, and guitar amps with near-zero latency
  • Convenient desktop form factor
  • High-speed Thunderbolt 3 connectivity for Mac and Windows computers (Thunderbolt cable available separately)
  • Free, industry-leading phone/online technical support from knowledgeable audio engineers

Versatile I/O

  • A 12 x 18 audio interface with four Unison-enabled microphone preamps, providing emulations of classic analog preamps with near-zero latency
  • Two front-panel, Unison-enabled 1/4″ Hi-Z inputs for direct connection of guitars, basses, or keyboards
  • Four XLR-1/4″ combo mic/line inputs
  • Stereo 1/4″ monitor output and two independent 1/4″ headphone outputs, each with dedicated level control
  • Four 1/4″ line-level outputs (may be used for alternate monitor outputs)
  • Up to eight channels of additional I/O via TOSLINK ADAT optical ports—eight channels at 44.1 / 48 kHz, four channels at 88.2 / 96 kHz, or two channels at 176.4 / 192 kHz
  • TOSLINK ports may be used for stereo S/PDIF I/O instead of multichannel ADAT

Expandable

  • Cascade up to four Thunderbolt-equipped Apollo interfaces and six UAD-2 Thunderbolt devices for expanded I/O and DSP
  • Once you expand your studio with an Apollo X rackmount unit (available separately), you can use Apollo x4 as a desktop monitor controller with additional I/O and DSP power

Powered Plug-Ins

Includes Realtime Analog Classics Plus plug-in bundle, which supports VST, RTAS, Audio Units, and AAX 64-bit, for compatibility with all major DAWs

  • UA 610-B Tube Preamp & EQ
  • Marshall Plexi Classic Guitar Amp
  • Ampeg SVT-VR Classic Bass Amp
  • UA 1176LN Limiting Amplifier (Legacy)
  • UA 1176SE Limiting Amplifier (Legacy)
  • Pultec EQP-1A EQ (Legacy)
  • Pultec Pro EQ (Legacy)
  • Teletronix LA-2A Leveling Amplifier (Legacy)
  • Fairchild 670 Compressor (Legacy)
  • Precision Enhancer Hz
  • Raw Distortion
  • Precision Channel Strip (Precision Mix Rack Collection)
  • Precision Reflection Engine (Precision Mix Rack Collection)
  • Precision Delay Mod (Precision Mix Rack Collection)
  • Precision Delay Mod L (Precision Mix Rack Collection)
  • RealVerb Pro Custom Room Modeler
SPECS

Universal Audio Apollo X4 Specs
Interface
Channels of I/O Analog:
4 Inputs / 10 Outputs at 192 kHz
Digital:
8 Inputs / 8 Outputs at 48 kHz
4 Inputs / 4 Outputs at 96 kHz
2 Inputs / 2 Outputs at 192 kHz
Max Sample Rate/Resolution 192 kHz / 24-Bit
Display and Indicators 4 x Multi-Segment LED Meters (Input Level)
4 x Multi-Segment LED Meters (Output Level)
1 x Multi-Segment LED Meter (Multifunction)
1 x LED (High-Pass Filter)
1 x LED (+48V)
1 x LED (Pad)
1 x LED (Dim)
1 x LED (Monitoring Mode)
1 x LED (Mono)
1 x LED (Mute)
Connectivity
Host Connection 1 x Thunderbolt (MDP) (Thunderbolt 3)
Analog I/O 4 x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line Input
2 x 1/4" TS Unbalanced Hi-Z Input
2 x 1/4" TRS Balanced/Unbalanced Monitor Output
4 x 1/4" TRS Balanced/Unbalanced Line Output
2 x 1/4" TRS Unbalanced Headphone Output
Phantom Power +48 V (Selectable on Individual Inputs)
Digital I/O 1 x TOSLINK / ADAT, S/MUX, S/MUX4, S/PDIF (I/O) Input
1 x TOSLINK / ADAT, S/MUX, S/MUX4, S/PDIF (I/O) Output
MIDI I/O None
Memory Card Slot None
Performance
Frequency Response Line Outputs, Mic/Line/Hi-Z Inputs:
20 Hz to 20 kHz ±0.05 dB
Headphone Outputs, Monitor Outputs:
20 Hz to 20 kHz ±0.1 dB
Gain Range Mic/Line/Hi-Z Inputs:
+10 dB to +65 dB
Max Input Level Mic Inputs:
25.6 dBu (Pad On)
Hi-Z Inputs:
12.2 dBu (Min Gain)
Line Inputs:
20.2 dBu (Min Gain)
Max Output Level Line Outputs, Monitor Outputs:
20.2 dBu
Headphone Output Power 96 mW into 300 Ohms (Max)
Dynamic Range Mic Inputs:
123 dBA
Hi-Z Inputs:
122 dBA
Line Inputs:
122 dBA
Line Outputs:
127 dBA
Monitor Outputs:
127 dBA
Headphone Outputs:
124 dBA
Impedance Mic Inputs:
5.5 Kilohms
Hi-Z Inputs:
1 Megohm
Line Inputs:
5 Kilohms
Line Outputs:
100 Ohms
Monitor Outputs:
100 Ohms
THD+N Mic Inputs:
-115 dB
Hi-Z Inputs:
-108 dB
Line Inputs:
-114 dB
Line Outputs:
-117 dB
Monitor Outputs:
-116 dB
Headphone Outputs:
-98 dB
Digital Audio
Sample Rates Up to 192 kHz (AD/DA Conversion)
Bit Depth 24-Bit (AD/DA Conversion)
Latency 1.1 ms at 96 kHz (Input to Output)
Sync Sources ADAT, Internal, S/PDIF
Compatibility
OS Compatibility macOS 10.12
macOS 10.13
macOS 10.14
Windows 10
Processor Requirement Intel Core i7
Storage Requirements 6 GB
Required Hardware Available Thunderbolt 3 Port
Thunderbolt 3 Cable (Not Included)
Internet Connection Required for Registration, Software/Driver Download
Power
Power Requirements AC/DC Power Adapter (Included)
AC Input Power 100 to 240 VAC at 50/60 Hz
AC/DC Power Adapter 12 VDC, Center-Positive (Included)
Power Consumption 19 W (Maximum)
General
Operating Temperature 32 to 104°F / 0 to 40°C
Physical
Anti-Theft Features Kensington Security Slot
Dimensions 9.17 x 6.17 x 2.6" / 23.29 x 15.67 x 6.6 cm
Weight 3.2 lb / 1.5 kg (Without Accessories)
Packaging Info
Package Weight 5.61 lb
Box Dimensions (LxWxH) 10.9 x 8.3 x 5.2"
In the Box

Universal Audio Apollo x4 Thunderbolt 3 Desktop Audio Interface (B-Stock)
External Power Supply