Audio Interfaces

Presonus Quantum ES 2, USB-C digital audio interface. The result of all the PreSonus experience, it is equipped with exceptional preamps and the best converters in its category. Ideal for professional and self-taught creators.

ARTICLE N° 93885
  • Presonus Quantum ES 2
  • Technical characteristics :
  • Inputs and Outputs:
  • Microphone inputs: 2
  • Guitar inputs: 1
  • Line inputs: 2
  • Line outputs (DC coupling): 2
  • Headphone outputs: 1
  • USB-C ports: 1
  • Auxiliary power ports: 1
  • Microphone inputs: 2 channels (CH 1-2)
  • Maximum input level: +14 dBu (balanced, minimum gain)
  • Gain range: 0 dB to +75 dB
  • Frequency response: 20 Hz to 20 kHz, +/- 0.2 dB (nominal gain, reference 1 kHz)
  • Dynamic range: 113 dB (A-weighted, minimum gain)
  • THD+N (Total harmonic distortion + noise): 0.001% (1 kHz, minimum gain)
  • EIN (Equivalent Input Noise): -129 dBu (maximum gain, 150 Ohms, 22 kHz bandwidth, A-weighted)
  • Line inputs: 2 channels (CH 1-2)
  • Connector type: 2x XLR/TRS combo
  • Maximum input level: +15 dBu (balanced, minimum gain)
  • Frequency response: 20 Hz to 20 kHz, +/- 0.1 dB (nominal gain, reference 1 kHz)
  • Dynamic range: 114 dB (A-weighted, minimum gain)
  • THD+N: 0.001% (1 kHz, minimum gain)
  • Input impedance: 10k Ohms
  • Digital adjustment: -10 dB to +10 dB
  • Instrument input: 1 (CH 1)
  • Connector type: 6.35 mm (¼ inch) female jack
  • Gain range: -7 dB to +68 dB
  • Maximum input level: +15 dBu (unbalanced, minimum gain)
  • Frequency response: 20 Hz to 20 kHz, +/- 0.2 dB (nominal gain, reference 1 kHz)
  • Dynamic range: 111 dB (A-weighted, minimum gain)
  • THD+N: 0.002% (1 kHz, minimum gain)
  • Input impedance: 1 MΩ
  • Main outputs (CH 1-2):
  • Connector type: 2x 6.35 mm (¼ inch) female jack, TRS
  • Maximum output level: +15 dBu (balanced)
  • Frequency response: 20 Hz to 20 kHz, +/- 0.1 dB (nominal gain, reference 1 kHz)
  • Dynamic range: 117 dB (A-weighted)
  • THD+N: 0.001% (1 kHz, +4 dBu)
  • Output impedance: 51 Ohm
  • Adjustment range: from -inf dB to 0 dB
  • Headphone output:
  • Connector type: 6.35 mm (¼ inch) female jack, TRS stereo
  • Maximum output level: 7.5 dBu (50 Ohms)
  • Frequency response: 20 Hz to 20 kHz, +/- 0.2 dB (nominal gain, reference 1 kHz)
  • Dynamic range: 111 dB (A-weighted)
  • THD+N: 0.02% (1 kHz)
  • Output impedance: 22 Ohm
  • Adjustment range: from -inf dB to 0 dB
  • Analog-to-digital (A/D) conversion
  • Supported sampling rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
  • Depth: 24 bits
  • Food :
  • DC auxiliary power connector: USB-C (requires USB-C to USB-C cable, not included)
  • DC auxiliary power required: 5 V DC, 1.8 A
  • Professional recording software included – 6 months of Studio One+ with full access to Studio One, add-ons and more
  • Dimensions (L x W x H): 175 x 157 x 48 mm
  • Weight: 0.68 kg
Presonus Quantum ES 2: The versatile USB-C audio interface for high-fidelity recording with 2 inputs and 2 outputs designed for self-taught musicians and creators.
The Quantum ES 2 offers 24-bit/192kHz audio conversion for accurate, detailed recordings. Its compact design and USB-C power supply make it an ideal solution for musicians and creators on the go.

Next-generation MAX-HD mic preamps:
The all-new MAX-HD mic preamps, developed by PreSonus, provide significant gain (+75 dB) to effectively capture the sound of your favorite microphones. Transparent and silent, they guarantee faithful reproduction of your signal. The instrument input was co-developed with Fender to guarantee impeccable sound recording for guitarists or bassists.

Auto Gain function and remote control:
The Auto Gain function automatically adjusts the input level for your mics and instruments, simplifying setup. Additionally, you can control the preamp settings (gain, phantom power) directly from your recording software (Studio One+ 6 months included) or the free Universal Control mobile app.

Versatile inputs and flexible monitoring:
The interface features 2 XLR/TRS combo inputs for microphones and instruments, as well as a guitar input specially designed in collaboration with Fender®. The powerful headphone output and main line outputs allow you to comfortably monitor your recordings.

Studio One recording software included:
The Quantum ES 2 interface comes with Studio One+ as a free 6-month subscription. This is the professional version of Studio One recording software, offering comprehensive tools for music production. At the end of these 6 months, you will be able to upgrade to Studio One+, a one-year subscription (optional).
Computer connection
 USB C, USB 2
Desktop
 Yes
Maximum resolution
 24 bit
Max sampling frequency
 192
Compatibility
 MacOS, Windows
Micro input
 2
Phantom power
 Yes
Instrument input
 Yes
Line input
 2
Digital input
 0
Line output
 2
Headphone output
 1
Digital output
 0
MIDI port
 Yes
Word clock
 0
Number of connectable speaker pairs
 1
19" rack
 No
Software incl.
 Studio One+ (6 months)
Power supply
 Via USB bus
Limited edition
 No

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