PreSonus Quantum 2 – Thunderbolt 2 Desktop Audio/MIDI Interface
The Quantum 2 takes all that we loved about the original Quantum, super-charges it with new features and functions and then condenses the whole lot into a much smaller, desktop-friendly chassis! Offering crystal-clear 24-bit/192kHz audio resolution, extremely low latency and blisteringly fast Thunderbolt 2 connectivity, the Quantum 2 also features ADAT Optical I/O, allowing expansion for up to 22 low-latency inputs and 24 outputs in one compact device!
As well as being the fastest PreSonus interface to date – thanks to Thunderbolt 2 – the Quantum 2 is also arguably the best-sounding, offering ADCs and DACs with >120 dB dynamic range and up to 24-bit/192kHz recording. It is equipped with a direct-to-DAW signal path, which gives you extremely low-latency performance with no DSP added.
It is fully expandable via ADAT Optical I/O to provide up to 22 inputs and 24 outputs, but that’s not all – up to 4 Quantum 2 interfaces can be stacked via Thunderbolt for an incredible 80 inputs and 80 outputs – perfect for even the largest of professional studios!
It features integrated software control, which allows for line-level switching, output encoder control assignment, headphone routing and recallable XMAX mic preamps which provide exceptional audio recording quality. In a brilliantly unique twist, the interface features DC coupled analog outputs which can provide control voltage to external analog equipment, controlled by a DAW plug-in; plus peripherals, such as hard drives and displays, can be stacked via Thunderbolt. This is an interface that gets connectivity and functionality completely right!
PreSonus also provide a full copy of their Studio One Artist DAW – which can be used to remotely control the preamps along with a number of other remote features – as well as their Studio Magic Plug-in Suite, both free of charge. Even better still, Quantum 2 owners can upgrade to Studio One Professional with an incredible 50% discount off the usual price.
Key Features:
PreSonus®’ fastest and best-sounding audio/MIDI interface
Uses high-speed Thunderbolt™ 2 bus
24-bit resolution and up to 192 kHz sampling rate (120 dB dynamic range)
22x24; expandable to 80x80 by stacking up to four Quantums via Thunderbolt
2 combo mic/instrument inputs with recallable XMAX preamps
2 combo mic/line inputs with recallable XMAX preamps
+48V phantom power (switchable per channel)
6 8-segment LED meters (8 input, 2 output)
4 ¼” TRS line outputs, DC coupled
1 ¼” headphone output with dedicated volume
Dual ADAT Optical I/O
S/PDIF, MIDI, and BNC word clock I/O
Assignable output level control
Studio One® Artist and Studio Magic Plug-in Suite included; upgrade to Studio One Professional for 50% off
Detailed Specifications:
Computer system requirements:
Below are the minimum computer-system requirements for the Quantum 2 Interface.
Mac
Mac® OS X 10.11.6 64-bit or later
Intel® Core™ i5 or better
4 GB RAM (8 GB or more recommended)
Windows
Windows® 10 64-bit or later
Intel Core i5 or better
4 GB RAM (8 GB or more recommended)
Mac and Windows Systems
Thunderbolt™ 1.0 or 2.0 port (Note: Your computer's motherboard must support Thunderbolt)
Internet connection (required for Studio One Activation and Content download)
Internal or external 7200 RPM storage drive highly recommended
30 GB hard disk space
Monitor with 1366x768 resolution
Note: The minimum system requirements may differ for DAWs other than Studio One. Please check the requirements for your DAW of choice with its manufacturer.
Note that the speed of your processor, amount of RAM and size and speed of your hard drive will greatly affect the overall performance of your recording system. Also, a more powerful system (faster processor with more RAM) will allow for lower latency (signal delay) than you might experience while monitoring audio signals.
Technical Specifications
Microphone Preamp
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?, 22 kHz BW, A-wtd)
Input Impedance 1.6 k?
Phantom Power +48V, > 8 mA per input
Instrument Inputs
Type 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 M?
Line Inputs
Type 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 k?
Main and Line Outputs
Type 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 51?
Headphone Outputs
Type ¼” TRS Female, Stereo, Unbalanced, x2
Maximum Output Level 175 mW/channel (56? 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? to 300?
Crosstalk
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
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
Clock
Jitter < 70 ps RMS (20 Hz – 20 kHz)
Jitter Attenuation > 60 dB (1 ns in => 1 ps out)
Power
12 VDC, 5A, external power supply
Physical
Dimensions
Height 1.75" (44 mm)
Depth 7" (178 mm)
Width 12.5" (317 mm)
Weight 5 lbs (2.27 kg)

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The cutoff for same-day dispatch is 3:30pm but can vary at busier times such as Christmas.
All orders over £99.00 will be delivered free via our standard delivery 2-3 days (UK Mainland)
If you need your item faster we also offer a Priority Tracked service at £3.99 (1-2 days) or Next Day Tracked £6.99
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EU Delivery Times
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Delivery To Belgium / France / Germany please allow 3-4 Days
Music PC Systems - Please allow 5-7 Working Days build time (UK) 7-14 (Rest of the World)
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Delivery Notes
On delivery, you must inspect the goods carefully for damage as Inta Audio is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Inta Audio of such within three working days from the date of delivery.
Returns Policy
We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:
1. Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product’s return.
2. Contact our Customer Services Team on 02476 369898 (or e-mail cs@inta-audio.com). We will then send you an RMA number and returns form which needs to be completed and sent back with the returned item(s).
3. (If the order has been unpacked) re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.
4. When returning an item please obtain a ‘proof of postage’ receipt from the Courier.
Returned items must be mailed within 10 days of when the RMA Number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.
Please note: Our returns policy is quite straightforward but there are a number of conditions that we ask our customers to comply with before applying:
1. It is your responsibility to request a return. If you don’t tell us you want to make a return, we don’t know. Once you do tell us, we will do everything we can to action it.
2. If you have not requested a return within 28 days of receiving an order, we will have assumed that you are intending to keep it and we will not authorise a return.
3. We always refund the payment according to how the original purchase was made and aim to do so within 72hrs of the return being received by us.
4. Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.
5. Delivery charges will not be refunded unless the delivered goods are faulty.
6. Replacement products are dispatched immediately after the returned goods have been received and accepted by Inta Audio.
7. Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369898 if you believe your item has developed a fault.
Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Inta Audio to process the return quickly.
If you have any questions about our Returns policy please telephone us on 02476 369898 or email us at cs@inta-audio.com.