Computer system requirements:

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

Mac

  • Mac® OS X 10.8.5 64-bit or later
  • Intel® Core™ 2 Duo processor (Intel Core i3 or faster recommended)
  • 4 GB RAM (8 GB or more recommended)

Windows

  • Windows® 7 x64/x86 SP1 + platform update, Windows 8.1 x64/x86, Windows 10 x64/x86
  • Intel Core 2 Duo (Intel Core i3 or faster recommended)
  • 4 GB RAM (8 GB or more recommended)

Mac and Windows Systems

  • FireWire S800 (IEEE 1394b) port or Thunderbolt port with FireWire S800 adapter
  • Internet connection
  • Internal or external 7200 RPM storage drive highly recommended
  • 30 GB hard disk space
  • Monitor with 1366x768 resolution

iOS

  • iOS 9.3 or later
  • iPad Pro, iPad Air 2, iPad Air, iPad mini 4, iPad mini with Retina display, iPad (4th generation), iPad mini, iPad (3rd generation), iPad 2


Android

  • Android™ 5.0 (Lollipop) or later
  • Android smartphone (QMix-UC)
  • Android tablet (8-inch) with 1024x768 resolution (UC Surface)
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

Input Type 8 locking XLR Female, balanced; 8 combo locking XLR mic-¼” TRS line
Frequency Response to Direct Output (at unity gain) 20-40 kHz, ±0.5 dBu
Frequency Response to Main Output (at unity gain) 20-20 kHz, ±0.5 dBu
Input Impedance 1 kΩ
THD to Main Output (1 kHz at unity gain) 0.005%, +4 dBu, 20-20 kHz, unity gain, unwtd
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) 0 dB to +65 dB
Maximum Input Level (unity gain) +22 dBu
Phantom Power (±2 VDC) 48 VDC, switchable per channel

Line Inputs

Type ¼” TRS Female (via Combo), Balanced
Maximum Input Level (min. gain, 1 kHz@0.5% THD+N) + 18 dBu, ±0.5 dB
Frequency Response (A-D) 20 Hz to 20 kHz, ±0.2 dB
Dynamic Range (min. gain, A-wtd) > 114 dB
Dynamic Range (mid. gain, unwtd) > 105 dB
THD+N (1 kHz, -1 dBFS, A-wtd) < 0.005%
Input Impedance 10 kΩ

Tape Inputs

Type RCA Female, unbalanced (stereo pair)
Maximum Input Level +12 dBu

Main Outputs

Type XLR Male, balanced
Rated Output Level +24 dBu
Output Impedance 100Ω

Mix Outputs

Type XLR Male, balanced
Rated Output Level +24 dBu
Output Impedance 100Ω

Headphone Output

Type ¼” TRS Female, active stereo
Maximum Output 100 mW/ch. @ 60Ω load
Frequency Response 20 Hz – 20 kHz (± 0.5 dB)
THD+N 0.01%, 1 kHz, max gain, 20 Hz BW, unwtd
S/N Ratio 96 dB, 1 kHz, max gain, 20 Hz BW, unwtd

System Crosstalk

Input to Output -90 dB (Ref = +4 dBu, 1 kHz, unwtd)
Adjacent Channels -87 dB (Ref = +4 dBu, 1 kHz, unwtd)

Noise Gate / Expander

Threshold Range -84 dB to 0 dB
Attack Time 0.02s to 500 ms / 0.5 ms
Release Time 0.05s to 2s
Expander Attenuation Range 2:1 (fixed)
Noise Gate Attenuation Range -84 to 0 dB
Key Filter 2nd-order, resonant bypass; Q=0.7
Key Listen Off, 40 Hz to 16 kHz

Compressor

Threshold Range -56 dB to 0 dB
Ratio 1:1 to 14:1
Attack Time 0.2 ms to 150 ms
Release Time 40 ms to 1,000 ms
Auto Attack and Release Attack = 10 ms, Release = 150 ms
Curve Types hard and soft knee

Limiter

Threshold -56 dB to 0 dB / -28 dBFS
Ratio ∞:1
Attack 20 ms
Hold 10 ms
Release 20 ms

Parametric EQ

Type 2nd-order shelving filter
Low (Lowpass or Bandpass) 36 to 465 Hz, ±15 dB
Low Mid (Bandpass) 90 Hz to 1.2 kHz, ±15 dB
High Mid (Bandpass) 380 Hz to 5 kHz, ±15 dB
High (Highpass or Bandpass) 1.4 kHz to 18 kHz, ±15 dB
Q (sweepable for each band) 0.1 to 4 / Low Q= 0.55, Hi Q=2.0

Graphic EQ

31-Band 1/3-Octave Controls Center frequencies (Hz): 20, 25, 32, 40, 50, 63, 80, 100, 125, 160, 200, 250, 320, 400, 500, 640, 800, 1k, 1.3k, 1.6k, 2k, 2.5k, 3.2k, 4k, 5k, 6.4k, 8k, 10k, 13k, 16k, 20k. Each band has a constant Q.
Gain/Attenuation ±15 dB

Digital Audio

ADC Dynamic Range 118 dB (A-wtd, 48 kHz)
DAC Dynamic Range 118 dB (A-wtd, 48 kHz)
FireWire S800, 800 Mb/s
S/PDIF Output RCA Female
Internal Processing 32-bit, floating point
Sampling Rate 44.1, 48, 88.2, 96 kHz
A/D/A Bit Depth 24
Reference Level for 0 dBFS +18 dBu

Clock

Type JetPLL™
Jitter <20 ps RMS (20 Hz - 20 kHz)
Jitter Attenuation >60 dB (1 ns in, 1 ps out)

Power/Environmental

Connector IEC
Input-Voltage Range 90 to 240 VAC
Power Requirements (continuous) 200W
Recommended Ambient Operating Temperature 0° to 40° Celsius / 32° to 104° Fahrenheit

Physical

Rackspaces 3U
Height 5.25” (13.34 cm)
Width 19” (48.26 cm)
Depth 10.5” (26.67 cm)
Weight 19 lbs. (8.62 kg)

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