32input 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.
48 in x 34 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 converter
Compatible with ASIO and Core Audio; works with Logic®, Pro Tools, Cubase, Sonar™, Digital Performer™, Live, and more
24 dedicated mix buses for easy configuration
14 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

Fourteen 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: 32 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

Talkback system

2-track in

Solo bus

Monitor bus

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

Sixteen 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

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
- 32 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
- 14 ¼" balanced aux outputs
- 32 pre-insert, balanced direct outputs, Ch. 1-8, 9-16, 17-24, 25-32 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 comptible with Apple Thunderbolt to FireWire Adapter)
Optional networking cards
- Dante™ (SL-Dante-Mix)
- AVB

Integrated software

UC Surface touch 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
StudioLive Remote-AI mixer-control software for iPad® available free from Apple App Store
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