PreSonus Quantum ES 4 - 4x4 24-Bit/192 kHz USB-C Audio Interface with Microphone Preamps in Black Finish

The PreSonus Quantum ES 4 is a next-generation 4x4 USB-C audio interface designed to provide musicians, content creators, and producers with high-fidelity sound, versatile connectivity, and ease of use. This powerful interface incorporates over 30 years of PreSonus expertise, offering 4 pristine MAX-HD microphone preamps, each with an impressive +75 dB gain range, ensuring that you can capture every subtle detail of your audio with exceptional clarity and precision. Whether you're recording vocals, instruments, or line-level devices, the Quantum ES 4 delivers the performance you need to produce professional-quality content in any environment.

Designed for flexibility and convenience, the Quantum ES 4 features back panel combo jacks for XLR/TRS connections, offering seamless integration for microphones, instruments, and line-level devices. The interface also provides two instrument inputs, perfect for direct guitar or bass recording, and four balanced TRS line outputs for connecting to studio monitors or other audio equipment. The two stereo headphone outputs ensure you can monitor your recordings with exceptional accuracy. The intuitive top panel control allows for easy adjustment of monitor levels and muting, enabling quick and efficient workflow during your recording sessions.

Built with high-performance, low-noise converters, the Quantum ES 4 ensures that your recordings maintain crystal-clear fidelity, with a dynamic range of 115 dB for superior detail and accuracy. It supports 24-bit conversion and up to 192 kHz sample rates, providing the highest resolution for any recording task. The auto-gain feature automatically adjusts preamp levels to ensure optimal performance before recording, while the best-in-class LED metering provides clear, real-time feedback on input and output levels. Fully compatible with Studio One, the Quantum ES 4 allows for remote control of preamp gain, phantom power, and channel settings directly from the Studio One application, streamlining your recording process for maximum productivity.

Features

• 4 PreSonus MAX-HD microphone preamps with +75 dB gain range for clean, transparent recordings
• 2 instrument inputs for direct recording of guitars and basses
• Back panel combo jacks (XLR/TRS) for flexible connectivity with microphones, instruments, and line-level devices
• 4 TRS line outputs for routing audio to studio monitors or other gear
• 2 stereo headphone outputs with 111 dB dynamic range for accurate monitoring
• High-performance, low-noise converters for stunning audio fidelity
• Supports up to 24-bit conversion and 192 kHz sample rates for ultra-high-definition recordings
• Dynamic range of 115 dB for clear, distortion-free audio capture
• Auto Gain feature automatically sets preamp levels for optimal performance
• Best-in-class LED metering for real-time monitoring of input and output levels
• Studio One integration for remote control of preamp gain, phantom power, and channel settings
• USB-C powered with 5VDC, 2.6A auxiliary power requirements for reliable operation
• Compact and portable design with dimensions of 8.4 x 6.2 x 1.9 inches and weight of 1.8 lbs

Specifications

AD / DA Conversion

• Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
• Bit Depth: 24-bit

Instrument Inputs

• Connector Type: 1/4-inch Female
• Gain Range: -7 dB to +68 dB
• Maximum Input Level: +15 dB (unbalanced, minimum gain)
• Frequency Response: 20 Hz to 20 kHz, +/- 0.2 dB (Unity Gain, Relative to 1 kHz)
• Dynamic Range: 111 dB (A-weighted, minimum gain)
• THD+N: 0.002% (1 kHz, minimum gain)
• Input Impedance: 1M Ohms

Microphone Inputs

• Connector Type: Combo-style, XLR / TRS
• Maximum Input Level: +14 dBu (balanced, minimum gain)
• Gain Range: 0 to +75 dB
• Frequency Response: 20 Hz to 20 kHz, +/- 0.2 dB (unity gain, reference 1 kHz)
• Dynamic Range: 113 dB (A-weighted)
• THD+N: <0.001% (1 kHz, minimum gain)
• EIN: -129 dBu (max gain, 150 Ohms, 22 kHz BW, A-weighted)
• Input Impedance: 1,600 Ohms

Line Inputs

• Connector Type: Combo-style, XLR / TRS
• Maximum Input Level: +15 dBu (balanced, minimum gain)
• Frequency Response: 20 Hz to 20 kHz, +/- 0.1 dB (unity gain, reference 1 kHz)
• Dynamic Range: 114 dB (A-weighted, minimum gain)
• THD+N: 0.001% (1 kHz, minimum gain)
• Input Impedance: 10,000 Ohms
• Digital Trim: -12 to +12 dB

Main Outputs

• Connector Type: 1/4-inch Female, TRS
• Maximum Output Level: +15 dBu
• Frequency Response: 20 Hz to 20 kHz, +/- 0.2 dB (relative to 1 kHz)
• Dynamic Range: 117 dB (A-weighted)
• THD+N: 0.001% (1 kHz, +4 dBu)
• Output Impedance: 22 Ohms
• Trim Range: -80 dB to 0 dB

Line Outputs

• Connector Type: 1/4-inch Female, TRS
• Maximum Output Level: +15 dBu
• Frequency Response: 20 Hz to 20 kHz, +/- 0.1 dB (unity gain, reference 1 kHz)
• Dynamic Range: 117 dB (A-weighted)
• THD+N: <0.001% (1 kHz, +4 dBu)
• Output Impedance: 51 Ohms
• Trim Range: -80 dB to 0 dB

Headphone Outputs

• Connector Type: 1/4-inch Female, TRS Stereo
• Maximum Output Level: 7.5 dBu (50 Ohms)
• Frequency Range: 20 Hz to 20 kHz, +/- 0.2 dB (unity gain, reference 1 kHz)
• Dynamic Range: 111 dB (A-weighted)
• THD+N: 0.02% (1 kHz)
• Output Impedance: 22 Ohms
• Trim Range: -80 dB to 0 dB

Power

• Aux Power DC Connector: USB-C (USB-C to USB-C cable required, not included)
• Aux Power DC Requirements: 5VDC, 2.6A

Physical

• Length: 8.4 inches
• Width: 6.2 inches
• Height: 1.9 inches
• Weight: 1.8 lbs