The Zoom LiveTrak™ L-20R is a rack-mountable digital mixer that allows musicians to control their live mix right from the stage with the use of an iPad. With wireless control, 20 discrete channels, 22 tracks of recording and six custom monitor mixes, the L-20R offers a complete solution for any venue
Mix Remotely. Record Directly - The Portable Mixer/Recorder That Does it All
Featuring 16 mono mic/line inputs and two stereo inputs, the L-20R can handle the most demanding stages. The L-20R offers two EFX busses and each channel includes a 3-band EQ, pan controls and compressor.
22 Tracks of Recording
During your live performance, record 20 channels plus a stereo mix directly to an SD card, then transfer your tracks to your DAW for your final edit.
It's Your Monitor, Make It Your Mix
With six independent monitor outputs, the L-20R enables musicians to create their own custom mix.
A dedicated output enables the FOH engineer to easily switch between monitoring the main and sub mixes.
A Robust Audio Interface
The L-20R is a 22-in/4-out USB audio interface. Route inputs to any DAW, streaming software, or iOS device*even while recording to an SD card.
Controls
• Channel Strip: 16 mono inputs include single-knob compression and gain control.
• Navigation and Display: An encoder knob and bright, backlit LCD screen let you access an intuitive menu to create new projects, recall previous projects, and customize your recorder settings.
• Bluetooth Adapter: The included BTA-1 connects a master iPad to the L-20R. Other iPads connect to the master via wifi.
• Transport Controls and Overdub: Transport controls include Record, Play/Pause, and Stop. The overdub feature allows you to record additional tracks to your current project.
• Six Custom Monitor Mixes: "Master" and "Headphone" options allow you to design custom mixes for both the master and monitor outs.
• Headphone Output for FOH: Dedicated headphone output for front-of-house enables the engineer to monitor any of the custom sub mixes as well as the master mix or soloed tracks.
• USB Port: The L-20R features USB connectivity for transferring files or use as an audio interface.
• SD Card: Record up to 512GB of audio to an SD card.
Features
• 20 discrete channels (16 mono plus 2 stereo) with XLR or -inch connectivity
• 22-track simultaneous recording, 20-track playback
• 22-in/4-out USB audio interface connectivity
• Records up to 24bit/96kHz audio to SD card
• Built-in compression control (Channels 1-16)
• Main outputs plus 6 customizable monitor outputs
• Dedicated headphone output for sound engineer
• Scene saving function, up to 9 scenes saved at a time
• 20 built-in chorus, delay and reverb effects with adjustable parameters
• Compatible with Remote Mixer app for iPad
What's Included
• LiveTrak L-20R
• AD-19 AC Adapter
• BTA-1 Bluetooth Adapter
• Rack Ears
• Quick-Start Guide
Specifications
NUMBER OF INPUT AND OUTPUT CHANNELS
Inputs:Mono (MIC/LINE): 16; Stereo (LINE): 2
Outputs: MASTER OUT: 1; MONITOR OUT: 6; PHONES : 1
INPUTS 1-16
Mono (MIC/LINE): Type: XLR/TRS combo jacks (XLR: 2 HOT, TRS: TIP HOT)
Input gain
PAD OFF: +16 +60dB
PAD ON: − 10 +34 dB
Hi-Z ON: +6 +50 dB
Input impedance
XLR: 3 k Ω
TRS: 10 k Ω /1 M Ω (when Hi-Z ON)
Maximum input level
PAD OFF: 0 dBu (at 0 dBFS)
PAD ON: +26 dBu (at 0 dBFS)
Phantom power+48 V
Stereo (LINE):Type: TS phone/RCA pin (unbalanced) jacks
Maximum input level : +10 dBu
OUTPUTS
MASTER OUT :
Type: XLR jacks (balanced)
Maximum output level :+14.5 dBu
Output impedance: 100 Ω
MONITOR OUT AF (with balanced output) connected to monitor speakers :
Type: TRS phone jacks (balanced)
Maximum output level: +14.5 dBu
Output impedance: 100 Ω
MONITOR OUT A F (with unbalanced output) connected to headphones:
Type: Standard stereo phone jacks
Maximum output level: 42 mW + 42 mW at 60 Ω
Output impedance: 100 Ω
BUSES
MASTER:1
MONITOR: 6
SEND EFX: 2
CHANNEL STRIP
LOW CUT: 40600 Hz, 12dB/OCT
EQ:
HIGH: 10 kHz, 15 dB, shelving
MID: 100 Hz 8 kHz, 15 dB, peaking
LOW: 100 Hz, 15 dB, shelving
LEVEL METERS
Level segments:12
SEND EFFECTS
Effects: 20 types
EFX 1: Hall 1 (Reverb), Hall 2 (Reverb), Room 1 (Reverb), Plate (Reverb), Church (Reverb), DrumAmb (Reverb), GateRev (Reverb), Vocal 1 (Delay + Hall Reverb), Vocal 2 (Delay + Mono Reverb), Vocal 3 (Delay + Plate Reverb)
EFX 2: Hall 3 (Reverb), Room 2 (Reverb), Spring (Reverb), Delay (Delay), Analog (Delay), P-P Dly (Delay), Vocal 4 (Delay + Room Reverb), Chorus 1 (Stereo Chorus), Chorus 2 (Mono Chorus), Cho+Dly (Chorus + Delay)
RECORDER
Maximum simultaneous recording tracks: 22 at 44.1/48/96 kHz
Maximum simultaneous playback tracks: 20
Recording format: WAV 44.1/48/96 kHz, 16/24-bit, mono/stereo
Recording media: 4 GB 32 GB SDHC cards (Class 10 or higher)
64 GB 512 GB SDXC cards (Class 10 or higher)
AUDIO INTERFACE
44.1/48 kHz: Recording: 22 channels | Playback: 4 channels
SYSTEM REQUIREMENTS FOR AUDIO INTERFACE MODE
Windows:
OS: Windows 7 SP1 or later / 8.1 / 10 (32bit/64bit)
CPU: Intel Core i3 or faster
USB: USB 3.0/USB 2.0
Operation is not guaranteed when used with USB hubs or expansion cards.
Mac:
OS: Mac OS X 10.11 / 10.12 / 10.13 / 10.14
CPU: Intel Core i3 or faster
USB: USB 3.0/USB 2.0
Operation is not guaranteed when used with USB hubs or expansion cards.
iPhone/iPad: OS: iOS 9 / 10 / 11
Apple Lightning-to-USB Camera Adapter required.
USB HOST
Class: USB 2.0 High Speed
Sampling frequency: 44.1/48/96 kHz
Frequency characteristics: 44.1 kHz: −1.0 dB, 20 Hz 20 kHz | 96 kHz: −3.0 dB, 20 Hz 40 kHz
OTHER
Equivalent input noise: (Actual measurements) −128dB EIN (IHF-A) at +60dB/150Ω input
Display: LCD with backlight (12864 resolution)
Power: AD-19 AC adapter (DC12V 2A)
Power consumption: 24 W maximum
External dimensions: 445 mm (W) 388.4 mm (D) 82.6 mm (H)
Weight (main unit only): 3.71 kg
SPECS
NUMBER OF INPUT AND OUTPUT CHANNELS
INPUTS |
Mono (MIC/LINE): 16 | Stereo (LINE): 2 |
OUTPUTS |
MASTER OUT: 1
| MONITOR OUT: 6
| PHONES : 1 |
|
|
INPUTS 1-16
MONO (MIC/LINE) |
Type: XLR/TRS combo jacks (XLR: 2 HOT, TRS: TIP HOT) |
|
Input gain | PAD OFF: +16 – +60dB
| PAD ON: − 10 – +34 dB | Hi-Z ON: +6 – +50 dB |
|
Input impedance
| XLR: 3 k Ω
| TRS: 10 k Ω /1 M Ω (when Hi-Z ON) |
|
Maximum input level | PAD OFF: 0 dBu (at 0 dBFS) | PAD ON: +26 dBu (at 0 dBFS) |
|
Phantom power | +48 V |
STEREO (LINE) |
Type: TS phone/RCA pin (unbalanced) jacks Maximum input level : +10 dBu |
OUTPUTS
MASTER OUT |
Type: XLR jacks (balanced) | Maximum output level :+14.5 dBu
| Output impedance: 100 Ω |
MONITOR OUT A–F (WITH BALANCED OUTPUT) CONNECTED TO MONITOR SPEAKERS |
Type: TRS phone jacks (balanced)
| Maximum output level: +14.5 dBu
|Output impedance: 100 Ω |
MONITOR OUT A– F (WITH UNBALANCED OUTPUT) CONNECTED TO HEADPHONES |
Type: Standard stereo phone jacks
| Maximum output level: 42 mW + 42 mW at 60 Ω
| Output impedance: 100 Ω |
PHONES |
Type: Standard stereo phone jacks
| Maximum output level: 42 mW + 42 mW at 60 Ω
| Output impedance: 100 Ω |
BUSES
MASTER |
1 |
MONITOR |
6 |
SEND EFX |
2 |
CHANNEL STRIP
COMP |
|
LOW CUT |
40–600 Hz, 12dB/OCT |
EQ |
HIGH: 10 kHz, ± 15 dB, shelving
| MID: 100 Hz – 8 kHz, ± 15 dB, peaking
| LOW: 100 Hz, ± 15 dB, shelving |
SEND EFFECTS
EFFECTS | 20 TYPES |
EFX 1 Hall 1 (Reverb) ,Hall 2 (Reverb)
, Room 1 (Reverb)
,Plate (Reverb)
,Church (Reverb), DrumAmb (Reverb), GateRev (Reverb) ,Vocal 1 (Delay + Hall Reverb)
, Vocal 2 (Delay + Mono Reverb)
, Vocal 3 (Delay + Plate Reverb) |
|
EFX 2
Hall 3 (Reverb)
, Room 2 (Reverb) , Spring (Reverb)
,Delay (Delay)
,Analog (Delay)
, P-P Dly (Delay)
, Vocal 4 (Delay + Room Reverb)
, Chorus 1 (Stereo Chorus)
,Chorus 2 (Mono Chorus)
,Cho+Dly (Chorus + Delay) |
|
|
RECORDER
MAXIMUM SIMULTANEOUS RECORDING TRACKS |
22 at 44.1/48/96 kHz |
MAXIMUM SIMULTANEOUS PLAYBACK TRACKS |
20 |
RECORDING FORMAT & SAMPLE RATES |
WAV 44.1/48/96 kHz, 16/24-bit, mono/stereo |
RECORDING MEDIA |
4 GB – 32 GB SDHC cards (Class 10 or higher) | 64 GB – 512 GB SDXC cards (Class 10 or higher) |
AUDIO INTERFACE
44.1/48 KHZ |
Recording: 22 channels
| Playback: 4 channels |
BIT DEPTH |
24-bit |
INTERFACE |
USB 2.0 |
SYSTEM REQUIREMENTS FOR AUDIO INTERFACE MODE
WINDOWS |
OS: Windows® 7 SP1 or later / 8.1 / 10 (32bit/64bit)
| CPU: Intel® Core i3 or faster*
USB: USB 3.0/USB 2.0** * Operation is not guaranteed with CPUs from Atom, Celeron or Pentium series or CPUs made by AMD.
** Only USB host controllers with Intel Chipsets are supported. Operation is not guaranteed when used with USB hubs or expansion cards. |
MAC |
OS: Mac® OS X 10.11 / 10.12 / 10.13 / 10.14 | CPU: Intel® Core i3 or faster
USB: USB 3.0/USB 2.0* * Operation is not guaranteed when used with USB hubs or expansion cards. |
IPHONE/IPAD |
OS: iOS 9 / 10 / 11 * Apple Lightning-to-USB Camera Adapter required. |
USB HOST
CLASS |
USB 2.0 High Speed |
SAMPLING FREQUENCY |
44.1/48/96 kHz |
FREQUENCY CHARACTERISTICS |
44.1 kHz: −1.0 dB, 20 Hz – 20 kHz
96 kHz: −3.0 dB, 20 Hz – 40 kHz |
Additional Specs
EQUIVALENT INPUT NOISE |
Actual measurements: −128dB EIN (IHF-A) at +60dB/150Ω input |
DISPLAY |
LCD with backlight (128×64 resolution) |
POWER |
AD-19 AC adapter (DC12V 2A) |
POWER CONSUMPTION |
24 W maximum |
EXTERNAL DIMENSIONS |
438 mm (W) × 158.2 mm (D) × 151.7 mm (H) |
WEIGHT (MAIN UNIT ONLY) |
2.49 kg |