PreSonus Quantum


* Special Order *


"They've achieved low-latency performance that, with the exception of PCIe cards, is currently unrivalled by any interface I know of... sound quality is exemplary... open-ended expansion potential... In a nutshell, it's really really good!" - Sam Inglis, Sound On Sound

Record with the Power of Thunderbolt

Quantum 26x32 Thunderbolt 2 Audio Interface/Studio Command Center

Your expandable, ultra-high definition recording system.

Taking full advantage of the high-speed Thunderbolt 2 bus and ADAT Optical I/O, the PreSonus® Quantum audio/MIDI interface delivers up to 26 inputs and 32 outputs, with extremely low latency. Boasting superb audio quality; 24-bit, 192 kHz recording and playback; recallable XMAX microphone preamps; and the ability to expand your system as your needs grow, it’s a great choice for a wide variety of professional and semi-pro producers and electronic musicians.

No waiting

Every design decision during Quantum’s engineering was made with one goal in mind: speed. Quantum sports high-speed Thunderbolt 2 connectivity and a no-frills, direct-to-daw architecture, with no DSP. The result is PreSonus' leanest, fastest, lowest-latency interface to date.

Cutting-edge 24-bit, 192 kHz converters with 120 dB of dynamic range and a surprising amount of expandability and software control options round out the package.

Expandable when you need more I/O—up to 96 in and out.


The Quantum offers two combo mic/line/instrument inputs and six combo mic/line inputs, each with a digitally-controlled XMAX preamp and individual 48V phantom power. You also get two ¼” TRS main outputs, eight ¼” TRS aux outputs, and two independent headphone outs with dedicated volume controls. But that’s just the start. With ADAT Optical I/O and S/PDIF stereo digital I/O, you can have up to 18 digital inputs and outputs. And if you need even more I/O channels, you can stack up to four Quantum interfaces via Thunderbolt to create a monster system with up to 96 in and out. BNC word clock I/O ensures your Quantum and other digital audio devices operate in tight sync. And of course you get MIDI I/O, too.

Superior sound.


Audiophile-grade digital converters, low-jitter clocking, and recallable preamps add up to a superior recording and listening experience. The Quantum operates at up to 192 kHz for ultra-high-definition mixing and recording. High-quality converters on every input and output provide 120 dB of dynamic range to capture complex musical harmonics smoothly and naturally with no audible distortion. And our recallable XMAX Class A analog microphone preamps deliver incredibly high headroom, deep lows, smooth highs, and a rich overall sound so you’ll hear every breath, transient, and detail in your recordings.

A superior choice for any production environment.

With its pro features and abundant I/O, the Quantum fits into any recording and production environment. You get two main and eight auxiliary balanced line-level outputs, as well as Mute/Dim and Mono controls. The onboard talkback mic can be routed to any mix, and you can listen to any mix from either of two independent headphone amps. All 10 analog outputs are DC coupled so they can provide control voltage to external analog equipment. Add that to Quantum’s expandability, flexible software suite, blazing speed, and superb sound quality, and you have a recording system that will be the heart of your dream studio for years to come.

Remote control with UC Surface, too!

The Quantum’s onboard features can also be controlled in PreSonus’ free UC Surface control software, so even if you use third-party recording software, you can remotely access them. We even included a real-time analyzer to monitor your audio streams. UC Surface has rapidly won accolades for an intuitive mixing interface that provides quick access to everything you need.

Now includes Studio Magic plug-in suite.


This suite of plug-ins brings extended sonic functionality into Studio One. Cherry-picked from the first names in virtual instruments and effects, each one brings a different flavor of practical magic to your songs. These plug-ins aren't gimmicky one-trick ponies — these are real-deal workhorses that you'll find yourself relying on for countless mixes.


  • Mac® OS X 10.11.6 or later



  • Windows® 10 64-bit


Mac and Windows Systems

  • Thunderbolt 1 or 2 port (Computer’s motherboard must support Thunderbolt; Thunderbolt 3 systems supported with qualified Thunderbolt 2 adapter.)


Technical Specifications


Microphone Preamp


XLR Female (via Combo), Balanced

Maximum Input Level

10 dBu (Balanced, min. gain)

Gain Control Range

60 dB

Frequency Response

20 Hz to 20 kHz (±0.15 dB, unity gain, 48 kHz)

20 Hz to 40 kHz (±0.22 dB, unity gain, 96 kHz)

Dynamic Range

> 110 dB (A-wtd, min. gain)

Total Harmonic Distortion

< 0.005% (1 kHz, min. gain)


< -131 dBu (max gain, 40Ω, 22 kHz BW, A-wtd)

Input Impedance

1.6 kΩ

Phantom Power

48V, > 8 mA per input

Instrument Inputs


¼” TS Female (via Combo), Unbalanced

Maximum Input Level

15 dBu (Unbalanced, min. gain)

Gain Control Range

60 dB

Frequency Response

20 Hz to 20 kHz (±0.2 dB, unity gain, 48 kHz)

20 Hz to 40 kHz (±0.6 dB, unity gain, 96 kHz)

Dynamic Range

> 106 dB (A-wtd, min. gain)

Total Harmonic Distortion

< 0.005% (1kHz, min. gain)

Input Impedance

> 1 MΩ

Line Inputs


¼” TRS Female (via Combo), Balanced

Maximum Input Level

18 dBu (Balanced, min. gain)

Frequency Response

20 Hz to 20 kHz (±0.05 dB, unity gain, 48 kHz)

20 Hz to 40 kHz (±0.10 dB, unity gain, 96 kHz)

Dynamic Range

> 118 dB (A-wtd, min. gain)

Total Harmonic Distortion

< 0.005% (1 kHz, min. gain)

Input Impedance

10 kΩ

Main and Line Outputs


¼” TRS Female, impedance balanced

Maximum Output Level

18 dBu (Balanced)

Frequency Response

20 Hz to 20 kHz (±0.05 dB, unity gain, 48 kHz)

20 Hz to 40 kHz (±0.15 dB, unity gain, 96 kHz)

Dynamic Range

> 118 dB (A-wtd)

Total Harmonic Distortion

< 0.0035% (1 kHz, 4 dBu)

Output Impedance


Headphone Outputs


¼” TRS Female, Stereo, Unbalanced, x2

Maximum Output Level

175 mW/channel (56Ω load)

Frequency Response

20 Hz to 20 kHz (±0.5 dB, 48 kHz)

Dynamic Range

> 110 dB (A-wtd)

Total Harmonic Distortion

< 0.03% (1 kHz)

Headphone Impedance (working range)

16Ω to 300Ω


Input to Input

< -110 dB

Output to Output

< -115 dB

Input to Output

< -120 dB

Signal Level LEDs


-0.5 dBFS

Signal 1

-2 dBFS

Signal 2

-4 dBFS

Signal 3

-6 dBFS

Signal 4

-10 dBFS

Signal 5

-20 dBFS

Signal 6

-30 dBFS

Signal 7

-50 dBFS

Digital Audio

Connection Type

Thunderbolt 2

ADC Dynamic Range

120 dB (A-wtd)

DAC Dynamic Range

120 dB (A-wtd)

Bit Depth

24 bits

Internally Supported Sample Rates

44.1, 48, 88.2, 96, 176.4, 192 kHz



< 70 ps RMS (20 Hz – 20 kHz)

Jitter Attenuation

> 60 dB (1 ns in => 1 ps out)



* A "Special Order" is a product that we normally do not keep in stock. We order it from the manufacturer as soon as you order from us. Estimated time of arrival is around 4 to 6 weeks. Remember that special orders are non-cancellable, so make sure the item you are ordering is correct. Call us at 03-7954 0316 if you need further assistance.