Features

General Features

• 22x24 Thunderbolt ultra-low-latency audio interface
• PreSonus’ fastest interface; record direct to DAW (no DSP)
• Stack up to four Quantum interfaces via Thunderbolt for a monster system
• Assignable output level control
• 6 8-segment LED meters (4 input, 2 output)

Integrated Software

• Tight integration with included Studio One Artist DAW software (Mac/Windows) for multitrack music production and studio command features
• Wireless control over preamp levels from free UC Surface touch-control software for iPad and Android tablet and from free Studio One Remote for iPad and Android tablet
• Wired control over preamp levels from free UC Surface touch-control software for Mac and Windows computers
• Compatible with most recording software for Mac and Windows
• Studio Magic Plug-in Suite included

Flexible Connectivity

• Simultaneous I/O up to 22 inputs/24 outputs (at 44.1 or 48 kHz)
• 2 front-panel combo microphone/instrument inputs
• 2 rear-panel combo microphone/line-level inputs
• 4 XMAX remote-controllable, Class A mic preamps with individually switched 48V phantom power
• 4 balanced ¼” TRS line-level outputs
• Line outputs are DC coupled for sending control voltages for analog gear
• ADAT Optical/Dual SMUX inputs/outputs: 16x16 channels at 44.1 or 48 kHz; 8x8 channels at 88.2 or 96 kHz
• Stereo S/PDIF coaxial input and output
• 1 high-volume headphone output with dedicated volume controls
• Digitalia
• Thunderbolt high-speed bus
• 24-bit resolution and up to 192 kHz sampling rate
• Top-quality 120 dB A/D/A converters
• BNC word clock input and output with low-jitter clocking
• MIDI I/O on 5-pin DIN connectors
• Physical
• Road-rugged construction with all-metal chassis and metal knobs
• 12 VDC external power supply (included)

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, 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

Headphone Outputs

• Type: 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

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*
• 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

Dimensions

• Height: 1.75" (44 mm)
• Depth: 7" (178 mm)
• Width: 12.5" (317 mm)
• Weight: 5 lbs (2.27 kg)

Computer system requirements:

• Mac OS X 10.11.6 64-bit or later
• Intel Core i5 or better
• 4 GB RAM (8 GB or more recommended)
• 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, 2.0, or 3.0 port (Note: Your computer's motherboard must support Thunderbolt. Thunderbolt 3 requires an adapter, not included.)
• 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