Universal Audio
Universal Audio APX4-HE Apollo x4 Heritage Edition Audio Interface
★★★★★
64 in
Elevate Your Recordings with Classic Analog SoundThe Universal Audio Apollo x4 Heritage Edition offers elite-class A/D and D/A conversion with quad-core UAD plug-in processing, delivering stunning models of classic tube and transformer-based mic preamps and guitar amps. Brand: Universal Aud...
$1,599.00*$1,979.00Save 19%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.
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Overview
Elevate Your Recordings with Classic Analog Sound
The Universal Audio Apollo x4 Heritage Edition offers elite-class A/D and D/A conversion with quad-core UAD plug-in processing, delivering stunning models of classic tube and transformer-based mic preamps and guitar amps.
- Brand: Universal Audio
- Model: APX4-HE
- Special Edition: Heritage Edition
- A/D and D/A Conversion: Elite-class, derived from Apollo X rackmount interfaces
- Mic Preamps: 4 Unison mic preamps
- UAD Processing: QUAD Core
- Compatibility: VST, AU, and AAX 64 in major DAWs
- Hi-Z Inputs: Dual front-panel Unison-enabled
- Headphone Outs: Dual front-panel
- Digital Input: Up to 8 channels via optical ADAT/SPDIF
Key Features
A special edition of UA's acclaimed Apollo x4 interface — with a premium suite of 10 award-winning plug-in titles from Helios, Fairchild, Teletronix, Pultec, UA, and more — a $2,400 value
Elite-class A/D and D/A conversion derived from Apollo X rackmount interfaces paired with 4 Unison mic preamps deliver stunning models of classic tube and transformer-based mic preamps and guitar amps
4 Unison mic preamps offer stunning models of classic tube and transformer-based mic preamps and guitar amps
UAD QUAD Core Processing for tracking through vintage compressors, EQs, tape machines, mic preamps, and guitar amp plug-ins with near-zero latency
Produce with LUNA Recording System — a fully-integrated recording application made for Apollo (Mac only)
Runs UAD Powered Plug-Ins via VST, AU, and AAX 64 in all major DAWs, including Logic Pro, Pro Tools, Cubase, Ableton Live, and more
Dual front-panel Unison-enabled Hi-Z instrument inputs and headphone outs
Built-in Talkback mic and dedicated monitor functionality including monitor remote functions and Mono, Mute, DIM, and ALT monitor controls
Up to 8 channels of additional digital input via optical ADAT/SPDIF
Also includes “Realtime Analog Classics Plus” UAD plug-in bundle featuring UA 610-B Tube Preamp, Legacy Pultec EQ, additional LA-2A and 1176 compressors, Marshall Plexi Classic, Ampeg SVT-VR Classic, and more
Specifications
Product Edition
Heritage Edition
A/D and D/A Conversion
Elite-class, derived from Apollo X rackmount interfaces
Mic Preamps
4 Unison mic preamps
Processing
UAD QUAD Core Processing
Recording System Compatibility
LUNA Recording System (Mac only)
Plug-In Compatibility
UAD Powered Plug-Ins (VST, AU, AAX 64)
DAW Compatibility
Logic Pro, Pro Tools, Cubase, Ableton Live, and more
Instrument Inputs
Dual front-panel Unison-enabled Hi-Z
Headphone Outputs
Dual front-panel
Talkback Mic
Built-in
Monitor Controls
Dedicated monitor functionality, monitor remote functions, Mono, Mute, DIM, ALT
Digital Input
Up to 8 channels via optical ADAT/SPDIF
Included Plug-in Value
$2,400 (premium suite)
Pros & Cons
👍 Pros
- Includes a premium suite of 10 award-winning plug-in titles, offering significant value to users.
- Equipped with 4 Unison mic preamps, allowing for realistic models of classic preamps and guitar amps.
- Provides UAD QUAD Core Processing for tracking with vintage plug-ins at near-zero latency.
- Allows for production with the LUNA Recording System, a fully-integrated recording application for Apollo interfaces.
- Features dual front-panel Unison-enabled Hi-Z instrument inputs for versatile recording options.
👎 Cons
- The LUNA Recording System, a key feature, is exclusively compatible with Mac operating systems.
- Additional digital input is limited to up to 8 channels via optical ADAT/SPDIF, which may not suffice for all setups.
- Requires familiarity with UAD Powered Plug-Ins and the LUNA Recording System to fully utilize its advanced capabilities.
- The interface's advanced features and included plug-ins represent a significant investment, potentially exceeding budget for some users.
Frequently Asked Questions
What is the main benefit of the Apollo x4 Heritage Edition compared to the standard Apollo x4?
The Heritage Edition includes a premium suite of 10 award-winning UAD plug-in titles, which provides an additional $2,400 value in software compared to the standard version.
Can this audio interface be used with Windows computers?
While the UAD Powered Plug-Ins run via VST, AU, and AAX 64 in all major DAWs, the LUNA Recording System is specifically designed for Mac only.
How many microphone inputs does the Apollo x4 Heritage Edition provide?
This interface features 4 Unison mic preamps, which are designed to deliver stunning models of classic tube and transformer-based mic preamps and guitar amps.
Does the Apollo x4 Heritage Edition support tracking with real-time effects?
Yes, it offers UAD QUAD Core Processing, which enables tracking through vintage compressors, EQs, tape machines, mic preamps, and guitar amp plug-ins with near-zero latency.
Are there options for connecting instruments directly to the front panel?
Yes, the Apollo x4 Heritage Edition includes dual front-panel Unison-enabled Hi-Z instrument inputs for convenient direct connection of guitars or basses.
What additional features are available for monitor control?
The interface includes a built-in Talkback mic and dedicated monitor functionality, along with monitor remote functions and controls for Mono, Mute, DIM, and ALT.
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