The highly flexible ZOOM L-20R : PORTABLE MIXER & RECORDER is a 20-input digital mixer and multi-track recorder well suited for live performances, studio recording, band rehearsals, podcasts, and more. Eschewing the faders of the similar L-20 without sacrificing much else, the L-20R is both portable and rack-mountable, even supplying rack ears for mounting the mixer in your rack case. Also, the L-20R sports iPad control. The FOH engineer and up to six musicians can control their own discrete monitor mix over iPads, changing levels, EQ, channel effects, and more.
The mixer features 16 mono channels, each with combo mic/line XLR-1/4" inputs with high gain, low-noise microphone preamps, a one-knob compressor knob, and +48V phantom power. Channels 1-2 also offer Hi-Z inputs for connecting guitars and basses. Two stereo inputs offer dual 1/4" and RCA inputs. All channels work with the onboard channel strip, which provides a low-cut filter, a 3-band EQ, a pan control, and two send FX for sending signals to the 20 built-in high-quality effects processor.
The LiveTrak L-20R features balanced XLR main outputs, while the six monitor outputs utilize balanced TRS 1/4" connectors, each with the ability to set-up customized mixes. Simply connect your headphones or a stage monitor and adjust the levels to taste. Furthermore, by connecting remotely over iOS devices, musicians can adjust their own monitor mixes on stage.
The built-in SD recorder can simultaneously record every channel and the master fader stereo signal output for a total of 22 tracks at resolutions up to 24-bit/96 kHz. Files can easily be copied to a computer and used in a DAW. The L-20R can also function as a 22-in/4-out USB audio interface, allowing you to record directly to your favourite software DAW or to iOS devices. The Zoom LiveTrak L-20R ships with a power cord and a BTA-1 Bluetooth cable to connect your master iPad (other iPads connect to the master via Wi-Fi).
Zoom L-20R Specs | |
Form Factor | Rackmount |
Number of Tracks | 22 |
Maximum Simultaneous Tracks | 22 x Recording / 20 x Playback |
Display | LCD (Backlit) |
Maximum Sampling Rate | 48 kHz / 24-Bit |
Meters | 12-Segment LED |
Signal Processing | |
Gain/Trim Range | +16 dB to +60 dB (Pad Off) |
-10 dB to +34 dB (Pad On) | |
+6 dB to +50 dB (Hi-Z On) | |
High-Pass Filter | 40 to 600 Hz, 12 dB/Octave |
EQ Parameters | High: ±15 dB at 10 kHz (Shelving) |
Mid: ±15 dB at 100 Hz to 8 kHz (Semi-Parametric) | |
Low: ±15 dB at 100 Hz (Shelving) | |
Dynamic Processing | Mono Channels: |
Compressor | |
Built-In Effects | 20 x Effect (Type Unspecified) |
Connectivity | |
Analog Audio I/O | 16 x Combo XLR-1/4" TRS Mic/Line Input |
4 x 1/4" TS Unbalanced Line Output | |
2 x Stereo RCA Coaxial Unbalanced Line Input | |
2 x XLR 3-Pin Balanced Main Output | |
6 x 1/4" TRS Headphone/Monitor Output | |
1 x 1/4" TRS Headphone Output | |
Phantom Power | 48 V |
Host Connection Protocol | USB 2.0 |
USB (Non-Host) | 1 x USB Type-B (USB 2.0) |
Other I/O | 1 x 1/4" Control Input |
Performance | |
Frequency Response | 20 Hz to 20 kHz +0/-1 dB (at 44.1 kHz) |
20 Hz to 40 kHz +0/-3 dB (at 96 kHz) | |
Maximum Input Level | Mic/Line Inputs: |
0 dBu for 0 dBFS (without Pad, Mono) | |
+26 dBu for 0 dBFS (with Pad, Mono) | |
Line Inputs: | |
+14 dBu (Stereo) | |
Maximum Output Level | Main Outputs: |
+14.5 dBu | |
Monitor Outputs: | |
+14.5 dBu | |
Headphone Output Power | 10 mW per Channel into 60 Ohms (Max) |
Impedance | Outputs: |
100 Ohms | |
XLR Inputs: | |
3 Kilohms | |
1/4" Inputs: | |
10 Kilohms | |
Hi-Z Inputs: | |
1 Megohm | |
EIN | -128 dB (IHF-A, +60 dB Gain, 150-Ohm Source) |
Digital Audio | |
Audio File Formats | Recording: |
WAV | |
WAV | |
Sample Rates | 44.1 / 48 / 96 kHz |
Bit Depths | 16 / 24-Bit (Recording) |
24-Bit (AD/DA Conversion) | |
Audio Storage & Playback | |
Supported Media | SD Card |
Memory Card Slot | 1 x SDXC |
Supported Media Capacity | SD: |
16 MB Minimum to 2 GB Maximum | |
SDHC: | |
4 GB Minimum to 32 GB Maximum | |
SDXC: | |
64 GB Minimum to 512 GB Maximum | |
Compatibility | |
OS Compatibility | iOS 91,011 |
macOS 10.11 or Later | |
Windows 7 or Later (32/64-Bit) | |
Processor Requirement | Intel Core i3 or Better |
Required Hardware | Available USB 2.0 Port, USB 3.0 / 3.1 Gen 1 Port ([or]) |
Power | |
Power Requirements | AC/DC Power Adapter (Included) |
AC/DC Power Adapter | 12 VDC at 2 A (Included) |