Mooer GL100 Groove Loop Series Phrase and Drum Station

Precautions

Please read carefully before proceeding.

Power Supply

• Use only the manufacturer's specified power adapter: 9 VDC, 300 mA, center negative. Other adapters may cause damage.
• Ensure power supplies are approved by relevant authorities and meet local regulations (e.g., UL, CSA, VDE, CCC).
• Unplug the power adapter when not in use or during electrical storms.

Connections

• Always turn off power to the GL100 and other equipment before connecting or disconnecting cables to prevent malfunctions or damage.
• Disconnect all cables and power supply before moving the device.

Storage and Usage Locations

To avoid deformation, discoloration, or damage, do not expose the device to:

• Direct sunlight
• Magnetic fields
• Extreme temperatures or humidity
• High humidity or moisture
• Excessively dusty or dirty locations
• Strong vibrations or shocks

Electrical Interference

Use the unit away from radio and TV devices to avoid interference.

Cleaning

• Clean only with a soft, dry cloth. Lightly moisten the cloth if necessary.
• Do not use abrasive cleaners, cleaning alcohol, paint thinners, wax, solvents, cleaning fluids, or chemical-impregnated wiping cloths.

Operation

• Do not use excessive force on control elements.
• Prevent metal, paper, or other objects from entering the unit.
• Do not drop the unit or subject it to heavy impacts.
• Do not modify the unit without authorization.
• For repairs, contact MOOER Customer Service.

Features

• Dual footswitch Stereo Phrase Looper with Drum Machine
• 100 storage positions for 300 minutes of memory
• Built-in alignment for perfect synchronization of drum machine and phrase loops
• Drum Match function to match drum pattern and tempo to phrase content
• Round, 1.3-inch touch screen for status display and function control
• Dedicated PC software for audio import/export, data management, and firmware updates
• Flexible input/output mode selection
• Time stretch function
• Tap tempo BPM adjustment
• Auto-record function for on-the-fly recording
• Headphone connection for silent practice

Controls and Connections

The GL100 features a comprehensive set of controls and connections:

• 1. LOOPER Knob: Adjusts the LOOPER playback volume from -∞ to +6 dB.
• 2. MENU Knob: Encoder for screen menu navigation and value adjustment. Rotate to select storage position, long press to save a phrase loop. In menus, press to select/unselect items, rotate to navigate or change values.
• 3. 1.3 inch Touch Screen: Displays status and menu interfaces. Click the center to switch between main and Looper interfaces. Click the metronome icon to open BPM screen, drum icon for DRUM screen, and back icon to return to the previous screen.
• 4. AUTO REC Button: Activates automatic signal detection for recording. LED indicates ON/Off status. Hold while rotating MENU knob to adjust auto-record detection threshold.
• 5. TAP Button: Press repeatedly (3+ times) to set tempo (BPM displayed). LED flashes to indicate BPM. Hold for 2 seconds to open BPM screen for fine-tuning.
• 6. DRUM Button: Short press to activate drum machine standby mode (purple flashing LED). If a loop recording starts with the drum machine in standby, the loop will synchronize. With a loop running, short press toggles the drum computer on/off (LED continuously lit when running). Long press opens the Drum Machine menu for adjustments (GENRE, TIME SIGNATURE, LEVEL, BPM). Hold and rotate MENU knob to adjust drum machine volume.
• 7. Left Footswitch: In Phrase Loop mode: short press to record, play, overdub; long press to cancel, undo, redo.
• 8. Right Footswitch: With an empty storage position: press several times to start Drum Machine and enter Tap Tempo. Press once to stop the Drum Machine. With a recorded loop: long press to clear temporary data in STOP state. Long press with MENU knob simultaneously to delete the entire recording.
• Right and Left Footswitch Simultaneously: Opens storage position selection mode (display flashing). Use left footswitch to scroll down, right footswitch to scroll up. Mode cancels automatically after a few seconds of inactivity.
• 9. Left Input: 6.35 mm (1/4") mono (TS) jack. Use as single input or left input for stereo.
• 10. Right Input: 6.35 mm (1/4") mono (TS) jack. Right input for stereo.
• 11. Left Output: 6.35 mm (1/4") mono (TS) jack. Use as single output or left output for stereo.
• 12. Right Output: 6.35 mm (1/4") mono (TS) jack. Right output for stereo.
• 13. USB Type C Interface: Connects to a computer for data import/export and firmware updates.
• 14. Power Supply: Connection for 9 VDC power supply, center negative, at least 300 mA. Use an independent outlet to prevent crosstalk noise.
• 15. PHONES: 3.5 mm (1/8") TRS stereo headset output jack.

Connection Scenarios

Mono Connection

For single input scenarios, to avoid only one output receiving the pass-through signal, change "Input Setting" to "Mixed" in the MENU screen.

Stereo / Dual-Channel Connection

For stereo/dual-channel connections, ensure "Input Setting" in the MENU is set to "Stereo". This routes the left input to the left output and the right input to the right output.

Independent Drum Machine and Instrument Output

To route guitar and drum machine signals to different PA platforms, set "Drum Out" to "Split Out" in the MENU. The guitar signal (pass-through + playback) outputs from the left, and the drum machine signal outputs from the right.

Functional Description

Basic Looper Operation

Selecting a Storage Location

The current storage position is indicated on the screen. Select a location by rotating the MENU knob or by pressing both footswitches simultaneously to enter Position Selection Mode, then use the footswitches to navigate.

Recording a Loop

The GL100 uses symbols to indicate loop states: Empty, Recording (REC), Playback, Overlay recording (DUB), Stop, Save completed, Clear. The operation sequence can be Rec-Play-Dub or Rec-Dub-Play, configurable in "Play Mode" settings. Stop modes include Immediate, OneShot, FadeOut (short), and FadeOut (long).

Cancel

During recording or overdubbing, long-press the left footswitch to cancel and restart immediately.

Undo, Redo

After multiple layers, long-press the left footswitch during playback to undo the last layer or redo it.

Saving

Automatic Saving: Saves the current track layer without interrupting performance. Data is marked as "Temporary" or with a clock symbol. UNDO/REDO are available. Auto-saved recordings can be recalled after power loss.

Manual Saving: Merges recorded layers into a new audio file. Data is marked with a disk symbol. UNDO/REDO are disabled, but the track can be overdubbed or exported. Manual saving is irreversible.

Basic Drum Machine Operation

Drum Machine Play/Stop

Operate via footswitch (repeatedly press right footswitch to start/set tempo, single press to stop/start) or screen operation (open Drum Machine menu, click play/stop icon).

Quick Adjustment of Drum Machine Volume

Hold the DRUM button and turn the MENU knob simultaneously. Note: Drum Machine and Looper volumes are global and not saved with storage locations.

Recording a Perfect Phrase Loop

Achieve perfection through a perfect start, stable playing, and a perfect ending. Features like AUTO REC and Count-in help minimize errors.

• AUTO REC: Detects input signal and starts recording automatically. Activate by pressing the AUTO REC button. Adjust trigger threshold by long-pressing AUTO REC and rotating the MENU knob, or by pressing and holding AUTO REC while rotating the MENU knob.
• Count-in: Ensure AUTO REC is off. Select an empty position, set tempo using TAP button, and press the left footswitch. A one-bar count-in will play before recording starts. The Drum Machine also starts after the count-in if in standby.

Alignment/Quantization of Drum Machine and Phrase Loop

When recording in a position with tempo and time signature assigned, the recording end aligns to the bar determined by the Drum Machine's time signature. If the footswitch is pressed within the first half of a bar, the recording is discarded and resets. If pressed after the first half, it aligns to the end of the bar.

Automatic Drum Machine Matching (DrumMatch)

The DrumMatch function automatically matches the Drum Machine tempo to a recorded phrase. Enable DrumMatch in the system menu. Select genre and pattern in the Drum Machine menu. Record your phrase; the GL100 matches the tempo. The matching progress is shown on screen. If no input is detected or recording terminates early, matching fails. Successful matching synchronizes the phrase and drum machine rhythm during playback.

Starting Over

• Keep drum machine rhythm and re-record phrase: Execute "Clear before manual save" (long-press right footswitch). Phrase content is cleared, drum machine rhythm is kept. Re-record the phrase and press DRUM button to synchronize.
• Delete all: Execute "Delete all" (long-press right footswitch + press MENU button). Clears phrase and matched tempo, resets matching status to "Match" (Standby). This only works if DrumMatch is active.

Time Stretch

TIME STRETCH shifts audio speed without changing pitch. Record or import audio, then press TAP and turn MENU knob simultaneously to accelerate (red) or decelerate (cyan) tempo. Press MENU to return to original tempo. Tempo changes must be saved or cancelled before overdubbing. Manual save makes tempo changes irreversible.

Position Jumping During Performance

Switch between storage positions while the Looper is running. Press both footswitches simultaneously to activate position switching mode. Use footswitches to select target position. The target position activates 3 seconds after stopping switching. The GL100 jumps to the new position to play the stored loop or start recording if empty. Forced jump or cancel jump options are available.

Settings

• 1. Capacity: Displays maximum and used storage capacity.
• 2. Play Mode: Choose between Rec-Play-Dub or Rec-Dub-Play sequences.
• 3. Stop Mode: Configure stop behavior: Immediately, OneShot, FadeOut (short), FadeOut (long).
• 4. Input Setting: Configure input routing for mono or stereo signals (Stereo or Mixed).
• 5. Drum Machine Output: Choose between Mixed output (all signals mixed) or Split Out (instrument/looper on left, drum machine on right).
• 6. DrumMatch: Refer to the Automatic Drum Machine Matching section.
• 7. Reset: Clears all user data and restores factory settings.

Usage Scenarios

• Scenario 1: Phrase Looper Alone: Ensure the Drum Machine is not activated.
• Scenario 2: Drum Machine Alone: Use footswitch or DRUM button to start/stop the drum machine.
• Scenario 3: Drum Machine and Phrase Looper Simultaneously: Record phrase loop first, then superimpose the Drum Machine, or record with count-in, or follow the drum machine to record phrases. Note: Drum machine audio is not included in the recording.

Mooer Studio for GL100

Dedicated PC software for audio import/export, firmware updates, and factory resets. Download from the Mooer Audio website.

System Requirements

• Win: Windows 10 and above
• Mac: Mac OS 10.15 and above

Connection

1. Connect GL100 to computer via USB cable.
2. Open Mooer Studio software and click the connection switch.
3. Select "GL100" from the device list and click "Connect".
4. Connection is successful when "Connected" is indicated. Note: GL100 operation and audio output are blocked during computer connection.

Software Interface

The interface includes device model, firmware version, connection switch, and an audio management area for import/export, device updates, and factory resets. Language settings are available via a dropdown menu.

Available Functions

• Listening to Looper Tracks: Play audio content on your computer via the PLAY button in the software.
• Import and Export: Import audio files to the device or export recorded audio to your computer. Both single and batch operations are supported. Note: Only manually saved audio tracks can be exported and played back.
• Formats: Supports various audio and video formats for import, and WAV (dual channel) for export.
• Delete Audio Tracks: Delete individual or multiple audio tracks.
• Firmware Update: Update the GL100 firmware via the software. Ensure cables remain connected during the update.
• Factory Reset: Resets the GL100 to factory settings, clearing all user data.

Drum Machine Rhythm List

The GL100 offers a variety of genres, patterns, and time signatures:

Specifications

• Inputs: 2 x 1/4" mono (2.2 MOhm)
• Outputs: 2 x 1/4" mono (120 Ohm)
• Headphone Jack: 1 x 1/8" stereo (32 Ohm)
• Storage Locations: 100
• Total Recording Time: 300 minutes (stereo)
• Sample Rate/Depth: 44.1 kHz / 24 bit
• Import Formats: wav, flac, ape, mp3, m4a, aac, ogg, mp4, mov, wma, avi, mpeg
• Export Format: wav (dual channel)
• Power Requirements: 9 VDC, center negative, 300 mA (recommend original adapter on independent outlet)
• Dimensions: 125 mm (L) x 74 mm (W) x 49 mm (H)
• Weight: 200 g
• Accessories: Adapter, USB-C to USB-A cable, quick guide

Disclaimer: Parameter updates will not be notified separately.