Heritage Audio i73 Pro One USB-C Audio Interface

MIDI & other	MIDI in / out (mini-DIN breakout)
Computer ports	USB 3.0 (USB-C)
number of headphone outputs	1
Low latency monitoring	yes, DSP mixer
suitable for operating system	Apple OSX / Mac OS, Microsoft Windows
Maximum sample rate	192 kHz
software included	yes, download
Included software	other
included data cable	USB-C cable
Phantom power	yes
19 inches	no

MIDI & other	MIDI in / out (mini-DIN breakout)
Computer ports	USB 3.0 (USB-C)
number of headphone outputs	2
Low latency monitoring	yes, DSP mixer
suitable for operating system	Apple OSX / Mac OS, Microsoft Windows
Maximum sample rate	192 kHz
software included	yes, download
Included software	other
included data cable	USB-C cable
Phantom power	yes
19 inches	no

Heritage Audio i73 Pro One USB-C Audio Interface
Product no: 9000-0127-3277 Bax Music Warranty: This product comes with a 3-year warranty.

General

The Heritage Audio i73® PRO 2 USB-C audio interface provides a 2-In/4-Out setup complete with a pair of integrated Class-A transformer-coupled 73-style preamps. In essence, this is a fully analogue take on the 'Golden Age' of studio recording and, in the name of modern convenience, places it all directly on your desktop and within immediate reach. The i73® PRO 2 has been fine-tuned and honed to treat musicians, producers and audio engineers to some of that seventies-era magic.

Consistent Studio-Grade Sound

At the heart of the Heritage Audio i73® PRO One interface lies the same Class-A transformer-balanced switching as Heritage Audio's classic 73-style preamps, feeding your computer and software with the same unmistakable, old-school vibe. Whether you're recording vocals with the help of the maximum 70 decibels of gain via the built-in preamp; capturing the dynamic nuances of an electric guitar or bass via the JFET DI; or taking full advantage of the crystal-clear performance of the line input, this audio interface coats everything in pure, high-end studio quality.

DSP-Driven Studio-Quality Effects

Designed to bring the focus all the way back to the music and the musician, the i73® PRO 2 comes complete with all of the tools needed to kit out the home studio, straight out of the box. This interface includes a growing collection of DSP-driven recording effects, each modelled on Heritage Audio's own external hardware and vintage collection, giving you the power to effortlessly enrich, colour and polish your projects in seamless style. And, with the 'native' recall function, laying down tracks in your DAW, whether they've been edited or not, has never been so efficient.

Specifications

Product features

Sustainable product	not specified
Interface for	guitarists, vocals + guitar
Number of analogue Inputs	2
Number of analogue outputs	4
Analogue audio input type	unbalanced line in (TS jack), microphone input (XLR), Hi-Z instrument input (TS jack)
Analogue audio output type	balanced line out (TRS jack), headphone output (jack or mini-jack)
Total microphone inputs	1
Total guitar/bass inputs	1
Network connections	none
Digital audio inputs	none
Digital audio outputs	none
MIDI & other	MIDI in / out (mini-DIN breakout)
Computer ports	USB 3.0 (USB-C)
Number of headphone outputs	1
Low latency monitoring	yes, DSP mixer
Suitable for operating system	Apple OSX / Mac OS, Microsoft Windows
Maximum sample rate	192 kHz
Software included	yes, download
Included software	other
Included data cable	USB-C cable
Phantom power	yes
19 inches	no

Weight and dimensions including packaging

Weight (incl. packaging)	3,5 kg
Dimensions (incl. packaging)	39,0 x 30,0 x 15,5 cm

Product specifications

2-in/4-out USB-C audio interface
1x Class A 73-style preamps with max. 70dB gain for real studio-quality recording
1x extra line input
analogue stereo monitor output via TRS, independently managed by the Heritage Audio mixer
independent stereo headphone output with separate cue
record, mix and play back in max. 32-bit/192kHz.
+48V phantom power, PAD and FASE
mono, mute and dim function
mini-DIN MIDI IN/OUT ports
compatible with macOS and Windows 10 and 11. The same hardware works with PCs and Macs.
direct monitoring with Heritage Audio mixer, real-time processing with imperceptible latency
fully analogue, DSP-driven for real-time tracking with imperceptible latency
growing Heritage Audio effect collection included. All modelled on HA external hardware and the private HA collection
Able to record both 'wet' and 'dry' streams to your DAW at the same time
leading AD/DA conversion
included: USB-C cable

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Reviews from other countries

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Funky Drummer April 4, 2026

Wrote the following about Heritage Audio i73 Pro One USB-C Audio Interface

Big upgrade from my existing Apollo. Free super high end plugins that put others to shame makes this my best 2025 investment

Martijn van Dongen November 10, 2025

Wrote the following about Heritage Audio i73 Pro One USB-C Audio Interface

Wat een waanzinnige geluidskaart. Ik had een SMSL M300se DAC maar dankzij de hoge kwaliteit van de heaphhone amp is deze overbodig geworden. Daarnaast is de audio output ook dit in orde. Ik heb nog geen mic opname gedaan maar verwacht dat dit ook dik in orde zal zijn.

Naast dat dit een geweldige interface is, krijg je ook toegang tot alle plugins. Hun Neve emulaties zijn echt indrukwekkend. En een aantal van die plugins kan je in DSP gebruiken om live door te track en/of mee op te nemen.

Voorheen had ik een Motu M2, wat geen slechte geluidskaart is maar deze is echt een flink aantal stappen weer vooruit.

FREE Successor Plugin with Every Heritage Audio i73 Pro & Successor Compressor

Wednesday 4 December 2024 By Kim | Bax Music

Heritage Audio gets properly generous by giving anyone who already has a Heritage Audio i73 Pro audio interface or the hardware version of the Successor a free copy of the Successor plugin.