Essential Information About the PreSonus Quantum ES 4 Audio Interface
- 24-bit/192 kHz Conversion and custom low-latency drivers for an exceptionally clean signal flow.
- 4 MAX-HD Mic Preamps with analog/digital control offering over 75 dB of gain and an automatic gain function.
- Instrument Inputs Co-Developed with Fender on the front panel, designed with guitarists in mind.
- Comprehensive Software Ecosystem including Studio One Pro (access via Studio One+) and the Universal Control application.
A New Generation by PreSonus
With the Quantum ES 4, PreSonus condenses nearly 30 years of audio engineering into a modern 4 x 4 interface, ready for 24-bit/192 kHz recording. The new MAX-HD preamps, refined clock, and low-noise converters raise the bar in terms of dynamic range and background silence, while maintaining exemplary ease of use.
For Musicians, Guitarists, and Demanding Content Creators
Whether you produce in a home studio, record vocals/instruments, stream, or record a podcast, the Quantum ES 4 offers ideal versatility: four mic/line channels, two front-panel instrument inputs for guitar or bass, zero-latency monitoring, and built-in loopback to capture system audio during streaming.
Key Features for a Modern Workflow
MAX-HD Preamps and Automatic Gain
Redesigned without compromise, the MAX-HD deliver a wide gain range (over 75 dB) with exemplary transparency. Activate automatic gain to instantly set reliable recording levels, perfect for quick sessions.
Instrument Inputs Co-Developed with Fender
The two front-panel Hi-Z inputs were designed with guitar specialists to provide frequency response and headroom suited for both passive and active pickups. Plug in, play, record: the sound remains faithful and punchy.
Monitoring, Speaker Switching, and Full Control
The main TRS outputs and a second pair of line outputs enable integrated speaker switching to instantly compare your mixes on two systems. LED input/output meters secure your levels, while the Universal Control app and Studio One remotely manage preamps and phantom power.
Low-Latency Drivers and Studio One+ Integration
PreSonus's optimized drivers ensure minimal latency and exemplary stability. Enjoy Studio One+ for 6 months with access to Studio One Professional to compose, record, and mix in a perfectly integrated environment.
Technical Specifications
Conversion and Performance
- USB-C audio interface, conversion up to 24-bit/192 kHz
- Custom low-latency drivers and low-noise converters
- Zero-latency monitoring and loopback function
Inputs and Preamps
- 4 x combo mic/line XLR/jack inputs
- 4 x MAX-HD mic preamps with over 75 dB gain each
- 2 x front-panel instrument inputs (co-developed with Fender)
- 48 V phantom power
- Automatic gain function
Outputs and Monitoring
- 2 x balanced main TRS outputs
- 2 x additional TRS line outputs
- Integrated speaker switching (up to 2 pairs of speakers)
- 2 x stereo headphone outputs
- LED level indicators for inputs and outputs
Control, Connectivity, and MIDI
- Remote control of preamps and phantom power via Studio One or Universal Control app
- MIDI input and output
- Bus-powered via USB-C
System Compatibility and Accessories
- Interface requirements: Windows 10 or later; macOS 10.14 or later
- Included: 1.5 m USB-C to USB-C cable; 6 months of Studio One+ with access to Studio One Professional Edition
Dimensions and Weight
- Dimensions (W x D x H): 213 x 157 x 48 mm
- Weight: 0.81 kg
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