StudioLive™ CS18 AI

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    StudioLive™ CS18 AI

    PreSonus® StudioLive CS18 AI

    Take Control Of Your Mix

    StudioLive CS18AI: Control Surface for StudioLive RM and Studio One

    Our StudioLive™ 24.4.2 and 16.4.2 changed the game, offering amazing performance and ease of use for a great price. Now we’ve packed the same audio quality, performance, seamlessly integrated software (including remote control) into a smaller, even more affordable package.

    Powerful, intuitive network control.

    Equipped with 100 mm, touch-sensitive, motorized faders and AVB networking, the StudioLive® CS18AI control surface provides a compact, intuitive mixing solution for PreSonus®StudioLive RM16AI and RM32AI rack-mount digital mixers and Studio One® 3 digital audio workstation. The CS18AI connects to the network with a CAT5e or CAT6 Ethernet cable, eliminating the need for cumbersome analog or digital snakes and stage boxes, and offers a host of other useful features. It adds up to a powerful mix control system with a fast, intuitive workflow and the latest networking technology.

    Complete control of StudioLive RM-series rack mixers.

    Networked with StudioLive RM-series mixers via PreSonus UCNET technology, the StudioLive CS18AI offers complete hardware control of up to 64-channels and all mixer features. Keep your mixing I/O onstage in a rack, while running the mix from hundreds of feet way, using a lightweight Ethernet cable instead of a cumbersome analog snake and separate stagebox. Set up a wireless network and add an iPad®, a large Windows®8/10 touchscreen, a Mac® or Windows laptop, or any combination for unprecedented mixing and control.

    Extensive mix control for Studio One 3.

    Unlike DAW controllers that give you some faders and generic controls that try to do too much with too little, the StudioLive CS18AI provides extensive hardware control for Studio One 3. Control channel faders and automation, PreSonus and third-party plug-ins, transport control, and more. Controlling Studio One with a CS18AI is like mixing with a large studio console—but more flexible.

    Filter DCAs are better than layers.

    Although you can navigate your mixes using traditional layers, a better solution is our unique Filter DCA groups, which bring the elements of the mix to you. Filter DCAs combine concepts of DCAs and view groups into an intuitive workflow designed to make your life easier when you’re in the heat of a live mix. For instance, rather than trying to remember which layer the lead guitar is on, select your guitar DCA Filter, and you'll have access to your guitar channels. This is going to change the way you mix! For more about Filter DCAs, see our UC Surface page.

    Built-in, 4x2, AVB-networked audio.

    Through the power and flexibility of AVB audio networking, the StudioLive CS18AI can not only transmit control data but can also send and receive audio channels across long distances. You get two mic/line inputs with PreSonus’ remote-controllable XMAX preamps and two line inputs that you can use as sources for the talkback, 2-track playback, or other sources from front-of-house. The CS18AI’s two TRS line-level returns are shared with the monitor line outputs and headphone output and can be sourced from any RM mixer output, including the solo bus, main mix, or any aux mix.

    Learn more about AVB.


    • 18 100mm, touch-sensitive motorized faders: 16 Channel, 1 Flex, 1 Master
    • Control StudioLive® RM AI mix systems of up to 64-channels
    • Full PreSonus Fat Channel DSP control with individual encoders and 12-LED displays for
      • Gate Threshold, Range, Attack, Release
      • Compressor Ratio, Attach, Release, Gain
      • Limiter Threshold
      • EQ Low, Low-Mid, High-Mid, High
    • Metering
      • Sixteen 12-LED channel ladder level and Fat Channel displays
      • Three 11-LED Select Channel Level/Compressor/Gate displays
      • 11-LED displays for Main Center/Mono, Left and Right
    • Variable-color (RGB) Select buttons for easy channel and Filter DCA group identification
    • 16-channels of high resolution 64 x 96 scribble strip display with Pan indicators
    • 4.3” / 109 mm color touch-sensitive display
      • Compressor
      • EQ
      • Gate
      • Compressor
      • Effects, Scenes, Markers Edit
      • Audio Routing
      • Channel Presets and settings
      • Talkback Assign
    • 4 Effects Mute/Mix button with TAP
    • Navigate using traditional layers or with intuitive PreSonus Filter DCA groups
    • Active Integration with PreSonus software includes UC Surface software
    • Studio One 3 control surface functionality including: touch-sensitive motorized fader control over channel faders and automation, plug-in cotnrol for PreSonus and third-party plug-ins, Channel Mute, Channel Solo and Solo clear, Channel Select, Channel Pan control, Scribble strip names, pan indication, and current automation mode, channel layer navigation, Aux mix and transport control, Automation mode selection, metering
    • 4x2 AVB audio transport control with Marker Shift, REW/FF options
    • Analog I/O
      • 2 remote XMAX mic preamps for talkback, room mic or other local inputs
      • 2 balanced 1/4” TRS line inputs
      • 2 XLR line outputs
      • stereo headphone output with level control
      • Monitor control level control
    • 4-pin XLR lamp connection
    • Footswitch input
    • Silent internal PSU with no fans
    • Same footprint as StudioLive 16.4.2AI for integration in 19” rack mounts and third-party studio desks
    • Optional iPad® mount accessory

    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


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


    • 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
    • iPad® Air, iPad mini with Retina display, iPad (3rd or 4th generation), iPad mini

    Studio One® 3 computer system requirements

    UC Surface computer system requirements

    Technical Specifications


    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


    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)

    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

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