Heritage Audio i73 Pro One is a USB-C audio interface designed for guitarists, featuring 1 Class A 73-style mic preamp, JFET Hi-Z DI input, dedicated line input, DSP-powered mixer with ultra-low latency, onboard vintage-style effects, and MIDI I/O in a rugged and compact desktop design.
Inspired by the legendary British 73 console module, the i73 Pro One delivers transformer-balanced analog circuitry with 70 dB of gain, capturing classic studio character for any microphone, including passive ribbon mics. The front-panel Hi-Z DI input with JFET topology is perfect for electric guitars, basses, and piezo pickups. Rear panel connections include balanced line input, dual TRS monitor outputs, MIDI I/O, and stereo headphone output.
The onboard DSP handles real-time effect processing with near-zero latency, allowing you to craft mixes using Heritage Audio’s plugin suite directly from the interface. The built-in Heritage Audio MIXER software provides flexible monitoring and routing, loopback, cue mixing, and simultaneous wet/dry recording to your DAW. With classic European-style knobs, LED VU meter, and dedicated controls for mono, mute, dim, and headphone/monitor levels, i73 Pro One offers a tactile analog feel with modern DAW integration.
KEY FEATURES
- Class A 73-style mic preamp with transformer-balanced analog signal path
- Up to 70 dB gain — ideal for any microphone type including low-output ribbons
- Front-panel JFET Hi-Z DI input for guitars, basses, and piezo instruments
- Dedicated 1/4" TRS line input and combo XLR/Jack input
- DSP-powered Heritage Audio plugin suite for real-time processing
- Ultra-low latency direct monitoring via Heritage Audio MIXER
- Simultaneous wet and dry signal recording to DAW
- Mono, Mute, and Dim monitoring functions
- Dual encoder control for monitor and headphone levels
- Separate stereo headphone output with cue mix
- Mini-DIN MIDI IN/OUT for external gear integration
- Classic European console-style layout with Marconi knobs and LED VU meter
- Loopback functionality for streaming and content creation
- USB-C connectivity (cable included)
- macOS (10.15.7+) and Windows 10/11 compatibility
TECHNICAL SPECIFICATIONS
- Audio interface: 2-In / 4-Out USB-C
- Mic preamp: 1 x Class A 73-style, up to 70 dB gain
- Line input: 1 x TRS 1/4"
- Instrument input: 1 x JFET Hi-Z DI
- Monitor outputs: 2 x TRS 1/4", analog stereo
- Headphone output: stereo with dedicated cue control
- Audio resolution: up to 32-bit / 192 kHz
- Phantom power: +48V
- PAD, PHASE, MONO, MUTE, DIM controls
- MIDI I/O: Mini-DIN IN/OUT
- Mic input dynamic range: 116 dB A-weighted
- Line/Instrument input dynamic range: 116 dB A-weighted
- Headphone output dynamic range: >123 dB A-weighted
- Monitor output dynamic range: 125 dB A-weighted
- Max output level: +24.0 dBu (configurable to +12 dBu)
- EIN (Equivalent Input Noise): -125 dB