Presonus Quantum

Thunderbolt 2 Audio Interface

  • 26 Inputs
  • 32 Outputs
  • Very low latency <1 ms
  • Audiophile 24 bit digital converter with 120 dB dynamic response
  • Up to 192 kHz sampling rate
  • Inputs: 2x XLR Combo (Mic / Line / Instr.), 6x XLR Combo (Mic / Line)
  • 8 XMAX Class A microphone preamplifier (ON <-131 dB, THD + N <0.005%)
  • Perfect integration in DAW "Studio One 3" (including gain control)
  • DC-coupled line outputs allow driving (CV / gate) of analog components (synths, filters, etc.) out of DAW
  • Remote control and programmable via Mac, PC, iPad and Tablet (via "UC Surface")
  • Included control software / app "UC-Surface": Setting and storing pre-gain (gain)
  • 48 V Phantom Power on / off
  • Realtime Analyser
  • Front-panel talkback microphone with push-button
  • Next / Prev button plus gain control
  • 48 V button (phantom power) with status light
  • Dim / Mute and Mono buttons with status light
  • 8 LED chains (8-segment plus 48 V-LED) for the analog inputs
  • 2 LED chains (8-segment) for the main output (L / R)
  • 8 Balanced DA outputs (each TRS jack 6.3 mm)
  • Separate balanced main output (L / R 2 TRS jack 6.3 mm) with large front-side volume control
  • 2 Headphone output (stereo headphone 6.3 mm) with 2 separate volume control knobs
  • 16x16 ADAT I / O (48 kHz) or 8x8 Dual SMUX I / O (96 kHz)
  • S / PDIF I / O (coaxial)
  • Word Clock I / O (BNC)
  • MIDI I / O (5-pin DIN)
  • Up to 4 Quantum can be cascaded via Thunderbolt
  • Power supply: external power supply (12 VDC)
  • Dimensions (W x D x H): 483 x 140 x 45 mm
  • Weight: 2.3 kg
  • Incl. Control software / app "UC-Surface" (to download) and DAW-software "Studio One 3 Artist" (download)

System requirements:

  • Thunderbolt 1 or 2 port (motherboard of the computer must support Thunderbolt)
  • Internet connection (to register and download software)
  • Monitor resolution: 1366 x 768
  • 30 GB free disk space
  • Hard disk with 7200 RPM or faster (strongly recommended)
  • OS X 10.11.6 or later
  • Windows 10 64 bit
  • Intel Core i5 or faster, 4 GB of RAM (8 GB or more recommended)
  • Mobile (UC Surface): iOS 9.3 or later
  • Android 5.0 (Lollipop) or later

Further Information

Recording / Playback Channels 26x32
Number of Mic Inputs 8
Number of Line Inputs 8
Number of Instrument Inputs 0
Number of Line Outputs 10
Headphone Outs 2
Phantom Power Yes
Number of S/PDIF Connectors 0
Number of ADAT Connectors 2
AES/EBU Connectors 0
Number of MADI Connectors 0
Ethernet 0
Other Connectors No
MIDI Connectors Yes
Word Clock 1xIn, 1xOut
Max. Samplerate 192 kHz
Max. Resolution in Bit 24 bit
Bus-Powered No
Incl. Power Supply Yes
Windows Thunderbolt driver Yes
Thunderbolt Version 2
Width in mm 482,6 mm
Depth in mm 177,8 mm
Height in mm 44,45 mm
7 Customer Ratings
  • 5
  • 4
  • 3
  • 2
  • 1
4.3 /5
  • handling
  • features
  • sound
  • quality
Total
handling
features
sound
quality
A Great Unit for the Money
Mr. Moore, 19.09.2019
The ultra-low latency claim by PreSonus is no marketing trick—it really is virtually unnoticeable. The two Thunderbolt ports mean that you can daisy-chain other hardware (i.e. computer displays). Even when the unit is off (but plugged in into power), the Thunderbolt ports remain active.

The two switchable Hi-Z (instrument) inputs are great. No issues accepting signal from passive or active instruments or pedalboards.

Don’t be confused by the peculiar labeling of the outputs—there are ten of them, not eight. Outputs 1 and 2 are labeled Main and the only minor niggle I have with them is that they always dim whenever you push the Talkback button on the unit.

The built-in talkback microphone is very noisy but usable. You’ll have to really talk into it to be heard over the noise. Still, beats wasting an input just for that.

I have read reports on the MIDI latency of the Quantum. I’ve not found that to be the case. Using a Roland drum module’s audio output and a drum sampler triggered via MIDI by the same module simultaneously, I couldn’t detect any latency whatsoever while listening to the audio coming from both sources.

P.S. An interesting fact demonstrating PreSonus’s attention to detail: Even when inactive, the LEDs behind the buttons shimmer very softly so you can easily hit them in the dark.
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de Original review (Show translation)
Unfortunately there was an error. Please try again later.
Total
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features
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Super! Inbetriebnahme unter OSX-Catalina mit Aufwand verbunden
The Producer, 28.05.2020
Voller Freude habe ich das Quantum PreSonus in Empfang genommen, doch dann wurde es schwierig. Alle meine Anstrengungen es mit dem Mac unter Catalina 10.15.4. zu verbinden waren erfolglos. Leider konnte mir auch der Support nicht helfen, dich dann kam der rettende Einfall:
-) Installation des Quantum mit einem alten Mac-Rechner und einem alten Betriebssystem. Dort wurde das Quantum erkannt.
-) Upgrade Firmware Update
-) Installation des Quantum auf meinen neuen Mac auf Betriebssystem Catalina - jetzt wurde das Quantum auch erkannt.
Seither läuft alles super und ich bin hoch zufrieden!
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es Original review (Show translation)
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Alta velocidad tal y como promete.
Daniel B. 595, 01.12.2018
La utilizo con Ableton Live, y es realmente rápida, unos 2ms de latencia con el buffer en 32 y poco más en 64.
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cz Original review (Show translation)
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alesP, 13.02.2019
Pou¸ívam takmer denne ako domáce ¨túdio.
Zvuk aj ovládanie je výborné, jediná nevýhoda je, ¸e bolo nutné zakúpi? samostatne thunderbolt kábel, ?o pri tejto cene u¸ mohlo by? sú?as?ou dodávky.
?o sa latencie týka (kupoval som to aj kvôli ¸ivému hraniu), tak je ve?mi nízka. Ke? pou¸ívam po?íta? ako efektový procesor, nepoznám rozdiel oproti priamemu pripojeni cez externý efekt.
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