PreSonus – CS18AI Control Suface with Moving Faders


Ethernet/AVB Control Surface for StudioLive RM Mixers and StudioOne DAW with moving faders.

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Product Description

Complete Mix Control

PreSonus® StudioLive™ mixers redefined affordable compact mixing, forever changing the world and setting the standard for what digital mixers could be. Built from this award-winning legacy, the StudioLive CS18AI is a compact, intuitive mixing solution for the StudioLive RM16AI and RM32AI rack-mount digital mixers and Studio One® digital audio workstation (Version 3 or higher). All StudioLive products are at home both live and in the studio, are easy to learn, and incorporate uniquely PreSonus workflows and features.

  • 18 100 mm, touch-sensitive motorized faders: 16 Channel, 1 Flex, 1 Master
  • Navigate using traditional layers or with intuitive PreSonus Filter DCA groups

The power of Active Integration™.

Your needs are unique. PreSonus AI systems are designed to address your individual requirements. With several control options and exclusive software integration features, you can accomplish more and have exactly the control and capabilities you need.

The StudioLive CS18AI connects to RM mixers with a single CAT 5 Ethernet cable. That enables Active Integration with PreSonus software including UC Surface control software for iPad, Windows 8 touchscreen, and Mac computers; iPhone and iPod management of personal monitor mixes with QMix-AI; and direct Capture™ control for live recording and virtual soundchecks.

Filter DCAs are better than layers.

We’ve never liked the complexity that comes with navigating your mix using channel layers. That’s why StudioLive mixers have traditionally featured a one-to-one channel configuration, with no layers. While the StudioLive CS18AI does support classic layer navigation, it also features our unique Filter DCAs for controlling and navigating your mix.

The StudioLive CS18AI is the first live mix system that lets you control 64 channels from a 19-inch, rack-mountable control surface. Filter DCA groups bring the elements of the mix to you. Rather than trying to remember which layer the lead guitar is on, simply select your guitar DCA Filter, and you’ll have access to your guitar channels. Filter DCAs take concepts of DCAs and view groups and combine them into an intuitive workflow designed to make your life easier when you’re in the heat of a live mix. No other mixing system can offer such compact and affordable mixing system that’s so easy to use.

Mix in touch-sensitive techno-color.

Every aspect of the CS18AI was designed to help you mix with ease and reliability. RGB Select buttons make it easier to identify channels, layers, and mixes based on color. True touch-sensitive faders know when your finger makes contact so the fader will never fight you, and you can experience real automation functionality in the studio. The CS18AI lights your way through mixing with 146 illuminated buttons; 16 high-res, 64×96 pixel scribble strips; a touch-sensitive, 4.3-inch (109 mm) LCD display; and 16 11-segment LED level ladders. If you need to control it, it lights up.

The perfect DAW controller for Studio One 3.

With a simple Ethernet connection, the StudioLive CS18AI becomes the control for Studio One, giving you an instant studio upgrade and closing the loop between studio and stage. Now you can get the performance of a big mixing console in a compact controller with a natural feel. Other DAW controllers give you some faders and generic controls that try to do too much with too little. The CS18AI is a complete mix controller that doesn’t skimp on functionality. You get all the classic mixer controls and workflows while still keeping the footprint compact.

Built-in 4×2 networked AVB audio.

Through the power and flexibility of audio networking, the StudioLive CS18AI can send and receive audio channels across long distances with just a single Ethernet cable. Use the two mic and two line inputs as sources for the talkback, digital return, or networked sources for Channels 31 and 32 on StudioLive RM mixers. The two returns are shared with the monitor line outputs and headphone output and can be sourced from any output of the RM mixers, including the Solo bus, main mix, or any aux mixes.

A StudioLive CS18AI and a StudioLive RM Active Integration rack mixer are an unbeatable combination in terms of value and sheer mixing power.


Computer system requirements:

Below are the minimum computer-system requirements for the StudioLive CS18AI:


  • Internet connection
  • AVB compatible Ethernet connection
  • Internet connection for registration and software download


  • OS X 10.8 64-bit or later
  • Hardware: Intel® Core™ i3 processor or better, 4 GB or more RAM (8 GB recommended)

​Windows® PC

  • Windows 7x 64/x86 SP1 or Windows 8/8.1 x64/x86 or Windows 10 x64/x86
  • Intel® Core™ 2 processor (Intel® Core™ i3 processor or better recommended)
  • 4 GB RAM (8 GB or more recommended)


  • Operating System: iOS 7.03 or later
  • Hardware: iPad Air, iPad mini with Retina display, iPad (3rd or 4th generation), iPad mini

See elsewhere on this site for Studio One and UC Surface computer requirements.


Type Ethernet / AVB

Microphone Inputs

Type XLR Female (via Combo), Balanced Remote
Maximum Input Level +12 dBu, ±0.5 dB, Unity Gain
Gain Control Range 65 dB, ±1 dB
Gain 0 to +65 dB, ±1 dB
Frequency Response to Main Output 20 Hz-20 kHz, ±0.5 dBu
Frequency Response (A-D) 10 Hz to 40 kHz, ±0.2 dB
Input Impedance 1 kΩ
THD to Main Output <0.005% max, +4 dBu, 20 Hz-20 kHz, unity gain, unwtd
THD+N (min. gain, a-wtd) < 0.005%
Dynamic Range (min. gain, a-wtd) > 114 dB
Dynamic Range (mid. gain, unwtd) > 105 dB
Signal-to-Noise Ratio to Main Output 94 dB
Common Mode Rejection 65 dB (1 kHz, unity gain)
EIN (+55 dB gain, 150Ω input, 20 Hz-22 kHz, a-wtd) < 128 dBu
Phantom Power +48 V (±2 V, > 8 mA per channel)

Line Inputs

Type ¼” TRS Female (via Combo), Balanced
Maximum Input Level +18 dBu
Frequency Response (A-D) 20 Hz to 20 kHz, ±0.2 dB
Frequency Response to Main Out 20 Hz to 20 kHz, ±0.5 dBu
THD to Main Output <0.005% max, +4 dBu, 20 Hz-20 kHz, unity gain, unwtd
THD+N (1 kHz, -1 dBFS, a-wtd) < 0.005%
Input Impedance 10 kΩ
Signal-to-Noise Ratio to Main Output 94 dB
Max Input Level +18 dBu
Dynamic Range (min. gain, a-wtd) > 114 dB
Dynamic Range (mid. gain, unwtd) > 105 dB
Crosstalk (1 kHz, channel-to-channel) < -80 dB

Monitor Line Outputs

Type XLR Male, Electrically Balanced
Maximum Output Level +24 dBu, ±0.5
Frequency Response 20 Hz to 20 kHz, ±0.2 dB
Dynamic Range (a-wtd) > 112 dB
THD+N (1 kHz, -1 dBFS, un-wtd) < 0.005%
Output Impedance 100Ω
Crosstalk (1 kHz, channel-to-channel) < -80 dB

Headphone Outputs

Type ¼” TRS Female, Stereo, Unbalanced
Maximum Output Level 120 mW/channel @ 60 Ω
Frequency Response 20 Hz to 20 kHz, ±0.5 dB
Dynamic Range (a-wtd) > 103 dB
THD+N 0.01%, 1 kHz, max gain, 20 Hz BW, unwt
Crosstalk (1 kHz, channel-to-channel) < -80 dB
Signal-to-Noise Ratio 96 dB 1kHz, max gain, 20 kHz BW, unwtd

System Crosstalk

Input to Output -90 dBu +4 dBu, 20 Hz-20 kHz, unwtd
Adjacent Channels -87 dBu +4 dBu, 20 Hz-20 kHz, unwtd

​Digital Audio

ADC Dynamic Range 118 dB min (A-wtd, 48 kHz)
DAC Dynamic Range 118 dB min (A-wtd, 48 kHz)
Sample Rate 44.1, 48, 88.2, 96 kHz
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 / Environmental

Connector IEC
Input-Voltage Range 100 to 230V, 50-60 Hz
Power Requirements 200W
Temperature Range 0˚ to 40˚ Celsius / 32˚ to 104˚ Fahrenheit


Length 22.35″ (58.6 cm)
Width (chassis only) 17.22″ (43.74 cm)
Maximum Height 6.9″ (17.53 cm)
Weight 23 lbs. (10.43 kg)

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


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