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The Apollo x4 Heritage Edition is intended for recording and producing music or audio content. It connects to a computer via Thunderbolt 3 and allows for real-time UAD processing, making it suitable for large-scale recording projects.
The Apollo x4 Heritage Edition boasts a Thunderbolt 3 interface, 12 inputs and 18 outputs, a premium software suite of 10 award-winning UAD plug-ins, elite audio conversion, four Unison preamps, and the LUNA Recording System.
The Thunderbolt 3 interface in the Apollo x4 Heritage Edition is known for its speed and reliability in transferring audio data, ensuring high-quality audio output.
The LUNA Recording System is a groundbreaking music production application from Universal Audio. It offers deep Apollo integration with a fast, natural workflow, and a host of built-in features and optional extensions.
Unison technology is exclusive to UA Audio Interfaces. It allows the Apollo's preamps to emulate the tone, input impedance, gain stage 'sweet spots', and the component-level circuit behaviors of sought-after tube and solid-state mic pres.
Review Summary
2021-11-10T17:54:20
great product, the only thing i am still surprised that such a big company selling 2k product without thunderbolt cable. Shocking .
YULIA Z.
2019-07-05T10:10:25
Awesome I/O... I paired my x8 with an PCIe OCTO and can load up all the plugins I need.
James H.
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Browse our FAQ
Tabletop
9 x Multi-Segment LED Meter
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
192 kHz / 24-Bit
4
1x Knob
Mute per Master
-20 dB (Switchable per Channel)
75 Hz
None
4x Combo XLR-1/4" TRS Balanced/Unbalanced Mic/Line Input
2x 1/4" TRS Unbalanced Hi-Z Input
4x 1/4" TRS Balanced/Unbalanced Line Output
2x 1/4" TRS Balanced/Unbalanced Monitor Output
2x 1/4" TRS Unbalanced Headphone Output
+48 V, Selectable On/Off (Selectable on Individual Inputs)
1x TOSLINK Optical ADAT / S/PDIF Input (S/MUX4 Support)
1x TOSLINK Optical ADAT / S/PDIF Output (S/MUX4 Support)
1x Thunderbolt/MDP (Thunderbolt 3)
None
None
None
None
None
None
Mic, Line, Hi-Z Inputs: 20 Hz to 20 kHz +/-0.05 dB
Line Outputs: 20 Hz to 20 kHz +/-0.05 dB
Headphone, Monitor Outputs: 20 Hz to 20 kHz +/-0.1 dB
Mic/Line/Hi-Z Inputs: +10 dB to +65 dB
Mic Inputs: 25.6 dBu (with Pad)
Hi-Z Inputs: 12.2 dBu (Min Gain)
Line Inputs: 20.2 dBu (Min Gain)
Line/Monitor Outputs: 20.2 dBu
96 mW into 300 Ohms (Max)
Mic Inputs: 5.5 Kilohms
Hi-Z Inputs: 1 Megohm
Line Inputs: 5 Kilohms
Line Outputs: 100 Ohms
Monitor Outputs: 100 Ohms
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
Mic Inputs: -115 dB (1 kHz, at -1 dBFS)
Hi-Z Inputs: -108 dB (1 kHz, at -1 dBFS)
Line Inputs: -114 dB (1 kHz, at -1 dBFS)
Line Outputs: -117 dB (1 kHz, at -1 dBFS)
Monitor Outputs: -116 dB
Headphone Outputs: -98 dB (1 kHz, at -1 dBFS)
Up to 192 kHz (AD/DA Conversion)
None
24-Bit (AD/DA Conversion)
1.1 ms at 96 kHz (Input to Output)
ADAT, Internal, S/PDIF
macOS 10.12 / 10.13 / 10.14 / 10.15
Windows 10 (64-Bit Only)
LUNA Mac Only
Any Core Audio (Mac) Compliant Software (Not Included)
Proprietary
Intel Core i7
6 GB
None
Available Thunderbolt 3 Port
Thunderbolt 3 Cable (Not Included)
Required for Registration, Software/Driver Download
AC/DC Power Adapter
100 to 240 VAC, 50 / 60 Hz
12 VDC, Center-Positive
19 W (Maximum)
Kensington Security Slot
32 to 104 Degree F (0 to 40 Degree C)
9.17 x 6.17 x 2.6" (23.29 x 15.67 x 6.6cm) (Including Controls and Protrusions)
3.2 lbs (1.5kg) (Without Accessories)
819937003097




UAD at its finest
By YULIA Z.
great product, the only thing i am still surprised that such a big company selling 2k product without thunderbolt cable. Shocking .
Awesome interface for the digital producer
By James H.
Awesome I/O... I paired my x8 with an PCIe OCTO and can load up all the plugins I need.
Where professional audio quality and advanced technology meet, you'll find the Apollo x4 Heritage Edition Desktop 12x18 Thunderbolt 3 Audio Interface with Real-Time UAD Processing. This high-quality audio interface, designed by the reputable Universal Audio, is a must-have for music producers and audio content creators.
The Apollo x4 Heritage Edition is more than just an audio interface; it's a comprehensive audio production system. It features a Thunderbolt 3 interface, renowned for its speed and reliability in transferring audio data. With 12 inputs and 18 outputs, it's perfectly equipped to handle large-scale recording projects.
This innovative device comes with a premium software suite of 10 award-winning UAD plug-ins, including the full collections from Teletronix, Fairchild, Pultec, Helios, and UA. These plug-ins have built UA's reputation for analog modeling over the past decade, offering vintage compressors, EQs, mic preamps, and reverb. This gives you the most accurate library of classic analog emulations anywhere, right out of the box.
The Apollo x4 Heritage Edition also boasts elite audio conversion and four Unison preamps, all conveniently located on your desktop. This allows musicians and producers to easily track, overdub, and mix larger projects with elite-class A/D and D/A conversion, four Unison-enabled preamps, and QUAD Core real-time UAD plug-in processing.
Built upon UA's 60-year heritage of audio craftsmanship, the Apollo x4 confidently outperforms everything in its class with 127 dB D/A dynamic range. It also includes a bundle of UAD analog emulation plug-ins and the LUNA Recording System, giving you a fully-stocked analog studio, right on your desktop.
The Apollo x4 Heritage Edition is not just a product; it's a professional audio solution that provides the genuine sound of Neve, Helios, API, and more. Its Unison technology nails the tone of these sought-after tube and solid-state mic pres, including their input impedance, gain stage "sweet spots," and the component-level circuit behaviors of the original hardware.
In addition to its four onboard Unison-equipped preamps, the Apollo x4 offers two headphone outs and two Hi-Z instrument inputs, enhancing your collaborative process. With a total of four line outs, optical ADAT/SPDIF input and output, plus dedicated monitor remote controls and a built-in Talkback mic, the Apollo x4 can serve as the powerful centerpiece of your professional desktop studio.
Whether you're a seasoned professional or an aspiring audio producer, the Apollo x4 Heritage Edition Desktop 12x18 Thunderbolt 3 Audio Interface with Real-Time UAD Processing is a durable, high-quality investment in your audio production capabilities.