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Presonus Quantum ES 4 USB-C audio interface, compact desktop unit with metal chassis and front panel controls

Presonus

Presonus Quantum ES 4 4x4 24-bit 192 kHz USB-C audio interface

SKU CH-QMQE-XWKH9

Four MAX-HD preamps deliver 24-bit 192 kHz recording with 75 dB gain, front-panel instrument inputs co-developed with Fender, and an Auto Gain button for instant level setting

  • Pristine 24-bit 192 kHz resolution captures every detail
  • Four MAX-HD preamps deliver +75 dB gain for clean recordings
  • Fender co-developed instrument inputs preserve authentic guitar tone
  • Auto Gain button sets optimal levels instantly
  • Bright LED metering gives real-time visual feedback

Quantum ES 4 4x4 USB-C audio interface

The Presonus Quantum ES 4 is a 4-in, 4-out USB-C audio interface built for musicians, podcasters and content creators who need transparent capture. Four MAX-HD digitally-controlled analog preamps deliver up to +75 dB gain with low-noise 24-bit/192 kHz conversion. Front-panel instrument inputs co-developed with Fender are optimised for guitar and bass tone. An Auto Gain button sets levels automatically for quick, accurate gain staging.

Before ordering check your setup

Verify your computer has an available USB-C port and that your operating system supports the low-latency drivers supplied by Presonus. Ensure you have cables to connect microphones, line-level gear and instruments to the four combo inputs. Confirm your recording software can address four simultaneous input channels at the chosen sample rate. The interface draws power over USB-C, so the host port must supply sufficient current for stable operation.

Sustained load behaviour

During long sessions the custom drivers maintain low-latency performance at 24-bit/192 kHz without dropouts. The MAX-HD preamps keep noise floor low even when running at high gain for extended periods. LED metering provides continuous visual feedback so levels stay consistent across hours of recording. USB-C bus power remains stable, preventing the sudden shutdowns that can occur with under-powered ports.

Highlights

  • Pristine 24-bit 192 kHz resolution captures every detail
  • Four MAX-HD preamps deliver +75 dB gain for clean recordings
  • Fender co-developed instrument inputs preserve authentic guitar tone
  • Auto Gain button sets optimal levels instantly
  • Bright LED metering gives real-time visual feedback

Specifications

No published specifications for this item yet.

Questions about this item

What cables and accessories come with the Quantum ES 4, and is a USB-C cable included or sold separately?

The Quantum ES 4 includes a USB-C cable for computer connection and a power supply; no other cables or accessories are bundled, so microphone, instrument or MIDI cables must be purchased separately.

Should I choose the 24-bit 192 kHz version or is there a lower-specification model I should consider?

This model is the 24-bit 192 kHz version with four MAX-HD preamps offering +75 dB gain and Fender co-developed instrument inputs; no lower-specification variant of the Quantum ES 4 is listed, so this is the only configuration available.

What does 24-bit 192 kHz mean for my actual recordings and playback?

24-bit 192 kHz gives you high-resolution capture and playback with a wide dynamic range, while the +75 dB gain on the MAX-HD preamps and Fender-designed instrument inputs let you record quiet sources and guitars cleanly.

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