24 input channels, each with:

• XLR mic and ¼” line inputs
• High-headroom Class A XMAX mic preamplifiers
• Analog ¼" inserts (rear panel)
• Trim control with –20 to +20 dBV line / -15 to +65 dBu mic gain range (80 dB!)
• +48V phantom power switch for condenser microphones
• Digital Audio Input Select
• 100 mm precision faders
• Phase reverse, highpass filter, noise gate/expander, compressor, 4-band EQ, limiter—all with A/B and Quick Null
• Cascade two StudioLive^® AI mixers of any frame size to create custom-sized mixing consoles.
• 40 in x 26 out FireWire s800 direct digital recording interface (24-bit/44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz) compatible with Apple Thunderbolt to FireWire Adapter
• Compatible with ASIO and Core Audio; works with Logic®, Pro Tools, Cubase, Sonar™, Digital Performer™, Live, and others
• 20 dedicated mix buses for easy configuration
• 10 aux buses with analog outputs
• 4 internal FX buses
• 4 subgroups with analog outputs
• Stereo main bus with analog outputs
• Access to Fat Channel functions

Four subgroup buses, each with:

• Balanced TRS output
• Solo
• Mute
• Noise gate/expander, compressor, 4-band EQ, limiter — all with A/B and Quick Null
• 300 ms output delay

Ten aux buses, each with:

• Balanced TRS output
• Solo
• Mute
• Pre1/Pre2/post-fader send
• Output-level control
• Highpass filter, noise gate/expander, compressor, 4-band EQ, limiter — all with A/B and Quick Null
• 31-band graphic EQ with A/B and Quick Null
• Available sources: 24 input channels, Aux In A and B, Tape Input, Main digital-audio return, FXA, FXB, FXC, FXD, Talkback

Four internal effects sends (two reverbs, two delay effects), each with:

• Mute
• Pre1/Pre2/post-fader send
• Output-level control
• Highpass filter, noise gate/expander, compressor, 4-band EQ, limiter — all with A/B and Quick Null

Stereo main bus with:

• Balanced XLR outputs
• Balanced TRS outputs
• Mono sum XLR output
• Noise gate/expander, compressor, 4-band EQ, limiter — all with A/B and Quick Null
• 31-band graphic EQ with A/B and Quick Null

Master section

• Aux Input A and B
• Level Control and stereo pan
• Noise gate/expander, compressor, 4-band EQ, limiter with A/B and Quick Null

Talkback System

• Mic Level control
• Output Select (Auxes, Main)
• Talk button
• Rear-panel XLR mic input with trim control and continuous 48V phantom power

2-Track in

• Level control
• Tape Input to Mains button
• Main Digital Audio Return on/off

Solo bus

• Cue Mix volume control
• PFL/AFL and Solo In Place (SIP) buttons
• Latch, Radio, and CR Modes
• Solo Clear

Monitor bus

• Headphone-output level control
• Control-room monitor-level control
• Solo Bus to Monitor button
• Tape Input to Monitor button
• Main Digital Audio Return to Monitor button
• Main Mix to Monitor button

Fat Channel with rotary encoders:

• Pan with dedicated 15-LED display
• Stereo link for input channels, aux buses, and subgroups
• Phase reverse (input channels only)
• High-pass filter: -6 dB/oct., sweepable from Off to 1 kHz (main channels and aux's only)
• Gate: Threshold: 0 to -84 dB; Attack: 0.02 to 500 ms; Release: 0.05 to 2 sec; Bandpass Key Filter: 40 Hz to 16 kHz; second-order resonant bandpass filter Q (0.7) with Key Listen function
• Compressor: Threshold -56 to 0 dB; Ratio 1:1 to 14:1, LIM=∞:1; Attack 0.2 to 150 ms; Release 2.5 to 900 ms; Makeup Gain 0 to 28 dB; Soft Knee switch; Auto Mode with 10 ms Attack and 150 ms Release
• 4-band fully parametric equalizer
  • Low EQ: sweepable from 36 Hz to 465 Hz, ±15 dB, switchable shelf or peaking
  • Low Mid EQ: sweepable from 90 Hz to 1.2 kHz, ±15 dB, variable Q 0.1 to 4.0
  • High Mid EQ: sweepable from 380 Hz to 5 kHz, ±15 dB, variable Q 0.1 to 4.0
  • High EQ: sweepable from 1.4 kHz to 18 kHz, ±15 dB, switchable shelf or peaking
  • Master EQ On/Off button
• Limiter: variable Threshold -28 dBfs to 0, ∞:1 Ratio
• Alt EQ & Dyn button for quick A/B comparisons of two complete sets of Fat Channel settings for each channel and bus
• Output Assign: 4 subgroups and main
• All settings can be copied among channels and buses and can be saved as user presets.
• 50 channel-strip presets for drums, bass, guitars, keyboards, and vocals
• Quick Parameter Null easily zeroes out any Fat Channel parameter

Four internal digital effects-processors (two reverbs, two delays), each with 50 customizable presets

Twelve 31-band graphic equalizers

• 6 Quick Scene buttons for instant Scene save/recall—like “speed dial” for Scenes
• Automatic Global AutoStore
• Customizable naming (for example, "Saturday Gig" or "Main Worship Service")

Individual channel-strip setting storage

• Up to 48 at a time, plus…
• 50 factory presets for instruments and vocal
• Copy and Paste between channels
• Can be browsed by category (DRM, VOX, HRN, GTR, BAS, MISC, SYS)

Lockout mode to keep inspired amateurs from changing your settings

Metering/Displays

Input/Output

• 24 x 16- LED Fat Channel matrix:
  • Pre-dynamics/pre-fader input
  • Post-dynamics/post-fader output
  • Gain reduction
  • Aux 1-14 and EFX A-D output
  • Fader-position recall
• 8 x 15-LED main meter bank
  • Selected channel level
  • Selected channel gain reduction
  • Sub buses 1 to 4
  • Main stereo outputs
• 15-LED horizontal Pan/Balance display
• 64 x 194 LCD matrix
  • Effects parameters
  • Scene creation, storage, and recall
  • System menus
  • Channel Info page with custom naming
  • GEQ Select
• 2-digit Channel Selected display
  • 24 main inputs, each with XLR mic, ¼" line, and ¼" inserts
  • 2 ¼" balanced stereo (L/R) aux inputs
  • 1 XLR talkback-mic input with XMAX™ preamp, phantom power (always on), and level control
  • Unbalanced RCA stereo (L/R) tape inputs and outputs
  • XLR stereo (L/R) main outputs with level control
  • ¼" balanced stereo (L/R) main outputs
  • XLR mono output with level control
  • ¼" balanced stereo (L/R) control-room outputs
  • ¼" headphone output
  • 4 ¼" balanced subgroup outputs
  • 10 ¼" balanced aux outputs
  • 24 pre-insert, balanced direct outputs, Ch. 1-8, 9-16, 17-24 on DB25 sockets
  • Dedicated USB 2.0 port and included Wi-Fi LAN adapter for wireless communications
  • Installed Option Card with:
    • S/PDIF digital out
    • 2 FireWire S800 ports (fully compatible with Apple Thunderbolt to FireWire Adapter)
• Optional Networking cards
  • Dante™ (SL-Dante-Mix)
  • AVB (SL-AVB-Mix)

Integrated software

• UC Surface Control Software with Smaart Measurement Technology™
• Studio One^® Artist Digital Audio Workstation software for Mac^® and Windows^®
• Capture™ multitrack recording software for Mac and Windows
• QMix®-UC aux-control software for iOS® and Android™ available free from Apple App Store, Google Play, and Amazon App Store

Digitalia

• High-definition Burr-Brown analog-to-digital converters (118 dB dynamic range)
• Unlimited-headroom, 32-bit floating point, digital mixing and effects processing
• Internal sample frequency 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz

Physical

• Rugged, non-flex steel chassis
• 100 mm long-throw faders
• Military-grade, quick-touch buttons
• BNC 12V lamp socket
• Optional dust covers available