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This product has been discontinued.

NOTE: QMix and SL Remote have been updated to support iOS 11. These changes also require an updated version of Universal Control. Please see this link for more details.

Computer system requirements:

Below are the minimum computer-system requirements for UC Surface, QMix-UC, and Studio One®.

Mac

  • macOS® 10.13, 10.14, 10.15 (64-bit only)
  • Intel® Core™ 2 Duo processor (Intel Core i3 or faster recommended)
  • Apple M1 Mac (Apple Silicon Series) not supported
  • 4 GB RAM (8 GB or more recommended)

Windows

  • Windows 10 x64
  • Intel Core 2 Duo (Intel Core i3 or faster recommended)
  • 4 GB RAM (8 GB or more recommended)

Intel Mac and Windows Systems

  • FireWire S400 (IEEE 1394a) port or Thunderbolt port with FireWire adapter
  • Internet connection
  • Internal or external 7200 RPM storage drive highly recommended
  • 30 GB hard disk space
  • Monitor with 1366x768 resolution

iOS

  • iOS 10 or later
  • iPad Pro, iPad Air 2, iPad Air, iPad mini 4, iPad mini with Retina display, iPad (4th generation)

Android

  • Android™ 6.0 (Marshmallow) or later
  • Android smartphone (QMix-UC)
  • Android tablet (8-inch) with 1024x768 resolution (UC Surface)

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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 or MIDI signals. Monitor resolution for both PC and Mac should be no lower than 1024x768 pixels.

Known compatible and incompatible hardware

VST Compatible Logo ASIO Compatible Logo

VST is a registered trademark of Steinberg Media Technologies GmbH
ASIO is a trademark and software of Steinberg Media Technologies GmbH

Technical Specifications

Microphone Preamp
Type XLR Female, Balanced
Frequency Response to Direct Output (at unity gain) 20 Hz-40 kHz, 0 / -0.5 dBu
Frequency Response to Main Output (at unity gain) 20 Hz-20 kHz, ±0.5 dBu
Input Impedance (Balanced) 1 kΩ
THD to Direct Output (1 kHz at unity gain) <0.005%, +4 dBu, 20 Hz–20 kHz, unity gain, unwtd
THD to Main Output (1 kHz at unity gain) 0.005%, +4 dBu, 20 Hz-20 kHz, unity gain, unwtd
EIN to Direct Output +125 dB unwtd, +130 dB A-wtd
S/N Ratio to Direct Output (Ref = +4 dB, 20 kHz BW, unity gain, A-wtd) -97 dB
S/N Ratio to Main Output (Ref = +4 dB, 20 kHz BW, unity gain, A-wtd) -94 dB
Common Mode Rejection Ratio (1 kHz at unity gain) +65 dB
Gain Control Range (± 1 dB) -16 dB to +67 dB
Maximum Input Level (unity gain) +16 dBu
Phantom Power (± 2 VDC) +48 VDC

Line Inputs, Balanced
Type ¼" TRS Female, balanced mono
Frequency Response to Direct Outputs (at unity gain) 10 Hz-40 kHz, 0 / -0.5 dBu
Frequency Response to Main Outputs (at unity gain) 20 Hz-20 kHz, 0/-0.5 dBu
Input Impedance 10 kΩ
THD to Direct Output (1 kHz at unity gain) <0.0007%, +4 dBu, 20 Hz-20 kHz, unity gain, unwtd
THD to Main Output (1 kHz at unity gain) <0.005%, +4 dBu, 20 Hz-20 kHz, unity gain, unwtd
S/N Ratio to Direct Output (Ref = +4 dBu, 20 kHz BW, unity gain, A-wtd) -105 dB
S/N Ratio to Main Output (Ref = +4 dBu, 20 kHz BW, unity gain, A-wtd) -94 dB
Gain Control Range (± 1 dB) -20 dB to +20 dB
Maximum Input level (unity gain) +22 dBu

Line Inputs, Unbalanced
Type RCA Female, unbalanced (stereo pair)
Maximum Input Level +22 dBu

Main Outputs
Type XLR Male, balanced (stereo pair); ¼” TRS Female, balanced (stereo pair)
Rated Output Level +24 dBu
Output Impedance 100Ω

Aux Outputs
Type ¼” TRS Female, balanced (mono)
Rated Output Level +18 dBu
Output Impedance 100Ω

Monitor Outputs
Type ¼” TRS Female, balanced (stereo pair)
Rated Output Level z +18 dBu
Output Impedance 100Ω

System Crosstalk
Input to Output (Ref = +4 dBu, 20 Hz-20 kHz, unwtd) -90 dBu
Adjacent Channels (Ref = +4 dBu, 20 Hz-20 kHz, unwtd) -87 dBu

Noise Gate (Expander)
Threshold Range -84 dB to 0 dB
Attack Time Adaptive (0.2 - 2.5 ms)
Release Time 70 ms
Expander Attenuation Range 2:1

Compressor
Threshold Range -56 dB to 0 dB
Ratio 1:1 to 14:1
Response Time (Attack/Release 0.2 ms / 1.0s (“Tight”) to 180 ms / 1.0s (“Smooth”)
Auto Attack and Release Attack = 10 ms, Release = 150 ms
Curve Types hard and soft knee

EQ
Type 2nd-order shelving filter (Q = 0.55)
Low (Low-pass or Bandpass) 36 to 465 Hz, ±15 dB
Mid 260 Hz to 3.5 kHz, ±15 dB
High (High-pass or Bandpass) 1.4 kHz to 18 kHz, ±15 dB

Digital Audio
ADC Dynamic Range (A-wtd, 48 kHz) 118 dB
DAC Dynamic Range (A-wtd, 48 kHz) 118 dB
FireWire S400, 400 Mb/s
Internal Processing 32-bit, floating point
Sampling Rate 44.1, 48 kHz
A/D/A Bit Depth 24 bits
Reference Level for 0 dBFS +18 dBu

Clock
Jitter <20 ps rms (20 Hz - 20 kHz)
Jitter Attenuation >60 dB (1 ns in ≈ 1 ps out)

Power
Connector IEC
Input-Voltage Range 100 to 240 VAC (factory-configured for country of destination)
Power Requirements (continuous) 100W

Physical
Length 15.56 inches (397 mm)
Width 16 inches (406 mm)
Maximum Height 5.5 inches (140 mm)
Weight 20 lbs.

As a commitment to constant improvement, PreSonus Audio Electronics, Inc., reserves the right to change any specification stated herein, at any time, without notification.