PreSonus Quantum ES 4 USB-C 4x4 Audio Interface With Fender Studio Pro

The PreSonus Quantum ES 4 is a 4x4 USB-C audio interface designed for musicians, producers, podcasters and content creators who need professional recording performance with expanded input flexibility. Equipped with four MAX-HD mic preamps offering up to 75dB of gain, 24-bit/192kHz conversion, Auto Gain functionality and low-latency USB-C connectivity, the Quantum ES 4 is built to capture vocals, instruments and spoken-word content with exceptional accuracy. Dual headphone outputs, loopback audio and deep integration with Universal Control and Fender Studio Pro software streamline modern recording workflows, whether tracking multiple sources, livestreaming or producing content in a home studio.

Four MAX-HD Preamps for Detailed Multi-Source Recording

The Quantum ES 4 features four newly designed MAX-HD mic preamps developed from more than three decades of PreSonus engineering. Offering up to 75dB of available gain, these transparent, low-noise preamps provide ample headroom for a wide range of microphones, including gain-hungry dynamic and ribbon models. Whether recording vocals, acoustic instruments, drum overheads or small ensembles, the MAX-HD design captures performances with clarity, consistency and detailed transient response.

Auto Gain and Intuitive Level Control

Auto Gain helps simplify session setup by automatically adjusting input levels for connected microphones and instruments. With a single button press, the Quantum ES 4 analyzes incoming signals and establishes appropriate gain settings to help prevent clipping while maintaining strong signal levels. Bright LED metering provides clear visual feedback, while the illuminated push encoder offers convenient control over preamp gain and output volume directly from the interface.

24-Bit/192kHz Conversion and Low-Latency Performance

Premium 24-bit/192kHz converters preserve the detail, dynamics and tonal character of your recordings, while a custom low-latency driver supports responsive monitoring and tracking. From microphone input to final playback, the Quantum ES 4 is engineered to provide a clean, accurate signal path suitable for music production, podcasting, streaming and other professional audio applications.

Flexible Monitoring and Creator-Friendly Workflow

The Quantum ES 4 includes two high-power headphone outputs for independent monitoring and collaborative recording sessions. Loopback audio simplifies livestreaming, podcast production and content creation, while Universal Control provides convenient access to key interface functions from compatible desktop and mobile devices. Registration also includes Fender Studio Pro software, giving creators a complete recording solution built around the PreSonus Quantum ES 4.