Presonus StudioLive CS18AI Control Surface for StudioLive RM and Studio One


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.


·   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

o Gate Threshold, Range, Attack, Release

o Compressor Ratio, Attach, Release, Gain

o Limiter Threshold

o EQ Low, Low-Mid, High-Mid, High

·   Metering

o Sixteen 12-LED channel ladder level and Fat Channel displays

o Three 11-LED Select Channel Level/Compressor/Gate displays

o 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

o Compressor

o EQ

o Gate

o Effects, Scenes, Markers Edit

o Audio Routing

o Channel Presets and settings

o 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 control 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

o 2 remote XMAX mic preamps for talkback, room mic or other local inputs

o 2 balanced 1/4” TRS line inputs

o 2 XLR line outputs

o stereo headphone output with level control

o 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





Ethernet / AVB

Microphone Inputs



XLR Female (via Combo), Balanced Remote

Maximum Input Level

+12 dBu, ±0.5 dB, Unity Gain

Gain Control Range

65 dB, ±1 dB


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



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




22.35" (58.6 cm)

Width (chassis only)

17.22" (43.74 cm)

Maximum Height

6.9" (17.53 cm)


23 lbs. (10.43 kg)

Monitor Line Outputs



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


Crosstalk (1 kHz, channel-to-channel)

< -80 dB

Headphone Outputs



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


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 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




Input-Voltage Range

100 to 230V, 50-60 Hz

Power Requirements


Temperature Range

0˚ to 40˚ Celsius / 32˚ to 104˚ Fahrenheit