PreSonus Quantum 26x32 Thunderbolt Audio Interface

Record high channel counts with super-low latency! PreSonus delivers tons of I/O including 8 mic pres, and 2 Thunderbolt ports for chaining up to 4 Quantums.
Taking full advantage of the high-speed Thunderbolt 2 bus, the PreSonus Quantum 26x32 Thunderbolt Audio Interface audio/MIDI interface delivers extremely low latency and superb audio quality, with 24-bit, 192 kHz recording and playback; converters with better than 120 dB of dynamic range; and eight of PreSonus' famous recallable XMAX preamps. You get 2 combo mic/instrument/line inputs, 6 combo mic/line inputs, 2 TRS main outputs, 8 TRS line outputs, stereo S/PDIF digital I/O, 16-channel ADAT Optical I/O (8 channels at 96 kHz), and two stereo headphone outputs for a total of up to 26 inputs and 32 outputs. All analog outputs are DC coupled and can deliver control voltages for analog gear. You also get Main Mute/Dim and Mono functions plus a Talkback system with an internal mic. Using the included Studio One Artist DAW or UC Surface control software, you can remote-control the preamps and many other features. If your needs grow, you can stack up to four Quantum interfaces to create a monster system with up to 96 in and out.

PreSonus cuts the wait.

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 our 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 read more 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 1/4" TRS main outputs, eight 1/4" 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.

Tight integration with Studio One.

With the Quantum, your audio interface is an integrated extension of your recording environment. Launch Studio One, and you'll find full preamp control integrated into your recording environment. Need to track away from your computer? Launch Studio One Remote on your iPad.

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. PreSonus 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.


- 26x32 Thunderbolt 2 low-latency audio interface
- 24-bit resolution and up to 192 kHz sampling rate (120 dB dynamic range)
- 2 combo mic/instrument/line inputs with recallable XMAX preamps
- 6 combo mic/line inputs with recallable XMAX preamps
- +48V phantom power (global)
- 10 8-segment LED meters (8 input, 2 output)
- 2 1/4" TRS main outputs, DC coupled
- 8 1/4" TRS line outputs, DC coupled
- 2 1/4" headphone outputs with dedicated volume
- Dual ADAT Optical I/O
- S/PDIF, MIDI, and BNC word clock I/O
- Assignable output level control
- Mute/Dim, Mono, and Talkback switches with internal Talkback microphone
- Stackable Thunderbolt ports for combining up to four Quantums
- Studio One Artist Included

Includes Studio Magic Plug-in Suite: Over $1000 in Free Software!

With over $1000 of virtual instruments, effects plug-ins and more, PreSonus' Studio Magic plug-in suite offers something for everyone -- and it's included as a free download with this product. Here's a look at everything included in this bundle:

Ableton Live Lite (a standalone DAW) is a lightweight edition of Ableton Live, with essential instruments and effects. (PreSonus also throws in their Studio One Artist software as a free download, so if you're in need of modern DAW software, you've got two solid choices right off the bat.)

Arturia's Analog Lab Lite 3 (VST, VST3, AAX, AU, Standalone) is a "Greatest Hits" collection of physically modeled — not sampled — classic analog synths, organs, string machines, and pianos from Arturia's V-Collection of virtual instruments.

Brainworx bx_opto compressor (VST, VST3, AU, AAX Native, AAX DSP) combines the best aspects and anomalies from several legendary, light-dependent compressor circuits. The result is a powerful dynamics processor, teeming with character and delivering sounds that can't be achieved with analog optical compressors.

Brainworx bx_rockrack V3 guitar amp modeling plug-in (VST, VST3, AU, AAX Native, AAX DSP) provides boutique tube guitar amp simulations that sound and feel like the real thing, with 8 famous amp models and 40 impulse responses in one plug-in.

Cherry Audio Voltage Modular Nucleus (VST, AU, AAX) is a terrific introduction to modular synthesis with 22 modules and 67 presets.

iZotope Neutron Elements (VST, VST3, AAX, AU, Standalone) features futuristic, assistive technology and four fantastic-sounding audio processors: Compressor, EQ, Exciter, and Transient Shaper. Like having a virtual assistant, Neutron Elements will listen to your audio, identify instruments, and offer custom starting points for your mix decisions while leaving the creative control to you.

Klanghelm SDRR2tube (VST, AU, AAX) can be a saturation processor, a compressor, an EQ, a bit-crusher, or a subtle stereo widener to add warmth, depth, and character to your tracks.

KV331 Audio Synthmaster Player (VST, AU, AAX) is a simplified version of the developer's SynthMaster semi-modular software synthesizer and effects plug-in, with limited editing capabilities. It comes with 1,800 factory presets from a world-class team of sound designers and offers 12 editable parameters.

Lexicon's MPX-i Reverb (VST, AU, AAX) delivers seven classic Lexicon plate, hall, chamber, and room reverbs. A streamlined interface and 100 versatile, finely crafted presets enable you to quickly get the sound you want.

Mäag Audio EQ2 (VST, VST3, AU, AAX Native, AAX DSP) delivers the sound of the Mäag Audio EQ2 two-band hardware equalizer. Mäag Audio's EQ design allows for exceptionally low phase shift across all EQ adjustments, which helps maintain the integrity of your mix's original sound while enhancing the very high "air" frequencies.

Native Instruments' Replika delay plug-in (VST, VST3, AU, AAX Native, AAX DSP) packs two professional quality delays and a powerful diffusion algorithm into a sleek, streamlined interface.

Output Movement (VST, VST3, AU, AAX) is an exciting effects plug-in for the studio or stage that adds powerful rhythms to any input in real-time. Movement's four rhythm engines blend seamlessly, while analog modeled effects optimized for modulation let you add rhythm with reverb and compressors pumping, filters and EQs opening and closing, delays morphing, and tube distortion warming and cooling.

SPL Attacker Plus (VST, VST3, AU, AAX Native, AAX DSP), from Plugin Alliance, is a micro-plug-in that enables all attack events to be amplified, regardless of their signal level. By focusing on the initial transient instead of specific frequencies, SPL Attacker Plus amplifies just the attack curves of a sound event, allowing instruments to be mixed at lower levels.

StudioLinked Trophies (VST, VST3, AAX, AU, Standalone) is an intuitive and easy-to-use collection of R&B sounds assembled by nine-time Grammy-winning producer Bryan-Michael Cox. It includes 500 multi-sampled presets across 13 categories, onboard effects, ADSR controls, filtering controls, and a robust library of chord progressions that you can drag and drop into your instrument track.

UJAM Virtual Drummer 2 "Phat" (VST, VST3, AAX, AU, Standalone) is all about funky urban drums suitable for everything from retro soul to g-funk. You get 30 different drum styles and 720 patterns recorded across 5 drum kits.

UVI Model D (VST, AU, AAX) lets you experience the presence and power of a Concert Grand Model D piano, captured in the brilliant Guillaume Tell soundstage in Paris.
WARNING: Cancer and Reproductive Harm -
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Microphone Preamps:
- Type: 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)
- EIN: < -131 dBu (max gain, 40 Ohms, 22 kHz BW, A-wtd)
- Input Impedance: 1.6 kOhms
- Phantom Power: +48V, > 8 mA per input

Instrument Inputs:
- Type: 1/4" 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 M Ohms

Line Inputs:
- Type: 1/4" 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 kOhms

Main and Line Outputs:
- Type: 1/4" 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: 51 Ohms

Headphone Outputs:
- Type: 1/4" TRS Female, Stereo, Unbalanced, x2
- Maximum Output Level: 175 mW/channel (56 Ohms 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): 16 Ohms to 300 Ohms

- Input to Input: < -110 dB
- Output to Output: < -115 dB
- Input to Output: < -120 dB

Signal Level LEDs:
- Clip: -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

- Jitter: < 70 ps RMS (20 Hz – 20 kHz)
- Jitter Attenuation: > 60 dB (1 ns in => 1 ps out)

NOTE: Thunderbolt cable sold separately.
Dimensions and Weight in Packaging
Base Item
Shipping Weight: 10.25 lbs
Shipping Dimensions: 24 x 14 x 5 in
Manufacturer Part Number (MPN): PRS QUANTUM
Scratch and Dent
Shipping Weight: 10.25 lbs
Shipping Dimensions: 24 x 14 x 5 in
Manufacturer Part Number (MPN): Quantum
Shipping Weight: 10.25 lbs
Shipping Dimensions: 24 x 14 x 5 in
Manufacturer Part Number (MPN): Quantum
PreSonus Warranty Presonus offers a one year warranty (parts and labor) on all new products. All non-new Presonus products are not covered by any warranty.
If you have additional warranty questions, please contact the manufacturer at 225-216-7887
(2 ratings)
Submitted April 1, 2018 by Christopher V in Rochester, NY
"Quantum is the Only Interface You'll Ever Need"
Verified Customer zZounds has verified that this reviewer made a purchase from us.
Hands down, the Presonus Quantum has exceeded every expectation and hope I had. From the build quality to routing, ease of use and functionality – Quantum has it all. To preface, I work as a studio engineer. My system revolves around Logic Pro X. I'm far more into ease of use over esoteric and expensive gear. So I skip the studio's Neve preamps and Avid converters for a streamlined approach. After years of using a MOTU 8pre as my main interface, I needed to upgrade to something with far more versatility. I bought a Focusrite Clarett interface. But I found the mix software to be less than intuitive. So I sold the interface and sprung for the Quantum. And boy am I thrilled I did. I've been using the Quantum for the last 6 months. Here are some of the features I adore about this thing: + Latency is Non-Existent The Quantum's major billing is how fast it is. The latency is non-existent thanks to its Thunderbolt connection. But on top of that, the Quantum has no obtrusive Mix Software. You know how interfaces always have their own mix software? Well as far as I've gathered that Mix Software exists to circumvent any issues around Software Monitoring and Latency. But the mix software itself, it turns out, adds its own latency. So Quantum skips the middle man and ditched the Mix Software. This is perfect, because I much prefer monitoring through Logic. Quantum does come with software to manage preamp levels, phantom power and outputs of the hardware unit. But read more there's no middle man here. Software Monitoring within the DAW is all you need. + Talkback Mic The integrated Talkback system is worth the price tag alone! Instead of having to pick up a separate talkback to patch in, Presonus included one with Quantum. Fire up a track, set it's input to Input 27, and you're off to the races. The Talk and Dim switches are easy to engage. I say download SoundRadix's free Muteomatic plugin and you won't have to wear the buttons out. That's what I use, so I'm able to leave the talkback running for the whole session. + Recall-able Digital Preamps Digital preamps are the way to go! I love being able to set these preamps to a specific value. And when I turn off the unit and return later, Quantum remembers the values. Digital Audio rules for its instant recall-ability. Now there's an interface that capitalizes on the brilliance of digital technology. Each channel is accessible through two buttons under an infinite rotary knob. Press the left or right buttons to flip through the channels. Use the rotary knob to adjust the channel's volume. I was a little nervous because none of the channels have any sort of dB pad. But it turns out I never need one. These preamps seem to have a tremendous amount of throw. Plus they sound great too! + All the Routing You Could Possibly Need There's plenty of inputs and outputs to cover any need you might have. If you ever need to expand, there's SPDIF and ADAT (I connect my Eleven Rack via SPDIF). But the cherry-on-top is the dual Thunderbolt inputs. This makes it super easy to daisy-chain devices. In my case, I get to use my external monitor through my Quantum. +++ If you can't tell, I love this thing! Using Presonus' Quantum is effortless. I don't expect to be looking at interfaces anytime soon.

Musical Background:
Producer and Studio Engineer; Guitar & Bass

Musical Style:
Rock, Hip Hop
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