PreSonus Quantum 2 Audio Interface | Thunderbolt Enabled

Taking full advantage of the high-speed Thunderbolt bus and ADAT Optical I/O, the PreSonus^® Quantum 2 audio/MIDI interface delivers up to 22 inputs and 24 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.

Every design decision during Quantum 2’s engineering was made with one goal in mind: speed. Quantum 2 sports high-speed Thunderbolt 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 control options round out the package.

The Quantum 2 offers two combo mic/instrument inputs and two combo mic/line inputs, each with a digitally-controlled XMAX preamp and individual +48V phantom power. You also get four balanced ¼” TRS outputs and a headphone out with dedicated volume control. 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 2 interfaces via Thunderbolt to create a monster system with up to 80 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.

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, 40Ω, 22 kHz BW, A-wtd)
Input Impedance	1.6 kΩ
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 MΩ

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 kΩ

Main and Line Outputs
Type	¼” TRS Female, impedance balanced, DC coupled
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	51Ω