The PreSonus Quantum ES 4 is a high-performance 4x4 USB-C audio interface designed for musicians and producers who require more connectivity for multi-track recording. It features four of PreSonus's next-generation MAX-Z preamps, providing an impressive 75 dB of gain to handle everything from low-output dynamic microphones to high-output instruments with pristine clarity. With professional-grade converters supporting up to 24-bit/192 kHz resolution and a 113 dB dynamic range, the ES 4 delivers the transparent, low-noise audio quality necessary for modern studio productions.

Building on the features of its smaller sibling, the ES 4 includes two front-panel instrument inputs co-developed with Fender® to ensure electric guitars and basses sound their best. It also boasts the Auto Gain feature, which quickly analyzes your input signal and sets optimal levels to prevent digital clipping. On the back, you’ll find four balanced line outputs—allowing for two sets of monitors or external gear routing—and two independent high-power headphone outputs. Like the rest of the Quantum line, it comes with a six-month subscription to Studio One+, giving you a complete professional recording and production environment out of the box.