This listing is for our PreSonus Quantum HD 2 USB-C Audio Interface. It is in mint condition, and was only plugged in to test after we purchased it brand new in July 2026... so it's as new as you'll ever find one, it's barely been touched! The Quantum HD 2 is the top-of-the-line portable interface from PreSonus, and in our testing it's one of the best audio interfaces on the market, and sounds better than pretty much anything under $2K! It's the best buy you'll find, and full of incredible features that set it apart from all the competition (including amazing mic preamps, dedicated Fender re-amp outputs, and two sets of ADAT I/O!!). Ours ships in the original packaging, and includes everything that was originally in the box!

Quick Description: 20-in/24-out, 32-bit/192kHz Audio Interface with 22-ch ADAT Optical I/O, Stereo S/PDIF I/O, 2 Re-amp Out, 2 Instrument In, 2 Mic/Line In, 4 x 1/4" TRS Audio Out, USB-C Port, Loopback - macOS/Windows/iOS/iPadOS/Android

From PreSonus:

PreSonus Quantum HD 2 Features:

• Versatile 20-in/24-out interface utilizes cutting-edge design and lightning-fast USB-C connectivity to support multitudes of creative possibilities in any studio arrangement
• Elegant form factor blends ergonomic accessibility with a minimal footprint, ensuring maximum control without sacrificing real estate in your setup
• Co-designed by Fender to include front-mounted instrument inputs with dedicated re-amp outputs, affording guitarists and bassists a flexible, clear plug-and-play architecture
• Auto Gain function matches gain levels for your mic or instrument signal to optimize input for peak-free recording
• MAX-HD preamps supply next-gen clarity via digitally controlled analog processing with up to +75dB of gain and unrivaled transparency
• Loopback support means monitor and streaming mixes are painlessly produced whenever needed
• Universal Control App guarantees comprehensive control over interface capabilities to make solo, group, live, studio, and broadcast capture a breeze
• ADAT optical connectors and S/PDIF port expand production, composition, and recording opportunities to seamlessly integrate MIDI connectivity and digital gear
• Vivid LED metering provides a balance of detailed information in real time without disrupting your recording experience