Presonus Quantum ES 2 2x2 USB-C Audio Interface MIDI 24-bit 192 kHz 75 dB gain

2x2 USB-C Interface for Producers

The PreSonus Quantum ES 2 is a 2x2 USB-C desktop audio interface built for producers, musicians and creators who need high-fidelity recording on a computer, phone or tablet. Two MAX-HD mic preamps deliver +75 dB of gain to suit popular microphones, while front-facing Hi-Z instrument inputs co-developed with Fender engineers handle guitars and basses directly. High-performance 24-bit / 192 kHz converters capture audio with clarity for studio or live use.

Upgrade from Basic Interfaces

This unit replaces simpler interfaces that lack sufficient gain for quiet sources or dedicated instrument inputs designed with guitar makers. The jump is worth it when you need Auto Gain to set levels instantly, loopback audio for streaming mixes, and 48V phantom power for condenser microphones. Mobile creators gain a portable front end that records to iOS or Android devices via Universal Control without a separate computer.

Desktop Setup with Auto Gain

Installation is straightforward: connect the USB-C cable to a Mac, Windows, iOS or Android device and launch the included Studio One Pro software. Auto Gain removes the trial-and-error of manual trim adjustments, while bright LED metering confirms signal health at a glance. What usually goes wrong is forgetting to engage 48V phantom for condenser mics or selecting the wrong input source in the host application.