Quick Guide You must read the Usage and Safety Precautions before use. The Operation Manual can be downloaded from the ZOOM website (https://www.zoom.jp/docs/L-20). © 2018 ZOOM CORPORATION Copying or reprinting this manual in part or in whole without permission is prohibited. Product names, registered trademarks and company names in this document are the property of their respective companies.
Turning the power on and off Connecting equipment and turning the power on 1、 7 5 3 4 2、6 1. Confirm that the output devices connected to the 2. Confirm that 3. Plug the AD-19 adapter designed for this unit into an outlet. are turned off. is set to OFF.
Turning the power on and off 4. Set all 5. Connect instruments, mics, speakers and other equipment. knobs and faders to their minimum values. HINT See the Operation Manual for connection examples. 6. Set 7. Turn on the output devices connected to the to ON. . NOTE • When using a passive guitar or bass guitar, connect it to channel 1 or 2, and turn • When using a condenser mic, turn on. on. is unused for 10 hours.
Setting the date and time The first time you turn the power on after purchase, you must set the date/ time. 2、 3 1 4 1. Press . This opens the display MENU screen. 2. Select SYSTEM > DATE/TIME. Move cursor: Turn Confirm: Press 3. Set the date and time. Move cursor or change value: Turn Select item/confirm change: Press 4. Press .
Outputting input sounds from output devices Outputting sound from speakers 1 2 2 3、5 4 1. Use to adjust the input signals while inputting sound from instru- ments and mics. NOTE Set them so that SIG indicators do not light red. SIG indicator 2. Turn off (unlit) for the MASTER and the channels with sound you want to output. 3. 4. 5. Set the MASTER fader to 0. Use the channel faders to adjust the volumes. Use the MASTER fader to adjust the overall volume.
Outputting input sounds from output devices Outputting sound from headphones 2 1 1. Connect headphones to the PHONES jack. 2. Use to adjust the volume. HINT The signal output from the PHONES jack can be set to MASTER, SOLO or MONITOR OUT A–F. Status MASTER A-F SOLO Explanation The same signals as the MASTER OUT are output. The signals set in the FADER MODE section are output. The signals of SOLO enabled channels are output.
Adjusting the tone and panning 2 1 1. Press to light it for the channel for which you want to adjust tone and panning. 2. Use the knobs and buttons to adjust the tone and panning. Adjusting the tone: , , , , Adjusting the panning: Reversing the polarity: NOTE To turn off all equalization at once, press settings. to light it. This will bypass HIGH, MID, LOW and LOW CUT HINT See the Operation Manual for details about how to use the compressor and the knobs and buttons.
Using the built-in effects The has 20 types of send effects in 2 banks. 5 1 4 7 2 3、6 1. Turn / to select the effect type, and press to confirm. Lit: Effect selected 2. Press 3. Set the EFX1/EFX2 RTN fader to 0. to turn it off, unmuting EFX1/EFX2 RTN.
Using the built-in effects 4. Press 5. Use 6. Use the EFX1/EFX2 RTN fader to adjust the overall effect amount. 7. Use for a channel that you want to use the effect on to light it. / to adjust the amount for each channel. and to adjust the send effect parameters for EFX1/ EFX2 RTN. NOTE See the Operation Manual for detailed information about the effect types and parameters that can be adjusted with / .
Preparing to record Inserting SD cards 1 2 1. Set 2. Open the SD card slot cover, and insert an SD card all the way into the to OFF. slot. To remove an SD card, push it further into the slot and then pull it out. NOTE • Disable write-protection on the SD card before inserting it. • Always set to OFF before inserting or removing an SD card. Inserting or removing a card while the power is on could result in data loss.
Preparing to record Creating new projects The 1. manages recording and playback data in units called projects. Press . This opens the display MENU screen. 2. Select PROJECT > NEW PROJECT. Move cursor: Turn Confirm: Press 3. Use to select YES, and press . NOTE When a new project is created, it will start with the current mixer settings. HINT When the power is turned on, it will automatically load the last used project.
Recording/overdubbing and playing tracks The has recorder functions that enable simultaneous recording of up to 22 tracks and simultaneous playback of up to 20 tracks. The input signals of every channel and from the master fader output can be recorded. These recordings can also be played back. Recording 54 3 1 2 1. Use to turn overdubbing on or off. OVER DUB indicator Lit (on): Overwrite current project Unlit (off): Create and record to new project 2.
Recording/overdubbing and playing tracks 5. Press to stop recording. NOTE • The signals recorded on each channel can be set to either before or after the compressor. • See the Operation Manual for information about punching in/out, automatic recording and pre-recording. • When recording stops, “Please Wait” appears on the display. Do not turn the power off or remove the SD card while this message appears. Doing so could cause data loss or malfunction. Playing recordings 3 2 1 1.
Mixer Mixer Effects Scenes MONITOR OUT Recorder Projects Audio files Metronome Slate mic Audio interface Card reader Settings Recorder SD cards Other settings Restoring factory defaults Firmware Operation from an iPad The mono channels have high-quality mic preamps and compressors. Each channel can also have 3-band EQ, LOW CUT, PAN, polarity reversal, and send amounts for 2 effects set. You can also set the bus monitored through the PHONES jack to MASTER, A–F or SOLO.
Specifications Number of in- Inputs put and output channels Outputs Inputs Mono (MIC/LINE) Mono (MIC/LINE) Stereo (LINE) MASTER OUT MONITOR OUT PHONES Type Input gain Input impedance Maximum input level 16 2 1 6 1 XLR/TRS combo jacks (XLR: 2 HOT, TRS: TIP HOT) PAD OFF: +16 – +60 dB PAD ON: −10 – +34 dB Hi-Z ON: +6 – +50 dB XLR: 3 kΩ TRS: 10 kΩ/1 MΩ (when Hi-Z ON) PAD OFF: 0 dBu (at 0 dBFS) PAD ON: +26 dBu (at 0 dBFS) +48 V TS phone/RCA pin (unbalanced) jacks +14 dBu XLR jacks (balanced) +14.
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