NUX Loop Core Stereo User Manual

Safety Precautions ⚠️

• Use with the specified voltage. Using other voltages may cause fire, electric shock, or damage.
• Do not open, disassemble, or modify the back cover or casing. This may cause fire, electric shock, or damage. For repairs, please contact your dealer.
• Avoid using this unit in humid environments, high-temperature locations, or in direct sunlight.
• Disconnect the power when not using for extended periods.
• NUX is not responsible for any damages resulting from fire, earthquake, third-party actions, other accidents, customer's intent or negligence, misuse, or other abnormal conditions.
• This product complies with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Please keep this user manual in a safe place.

Introduction

The Loop Core Stereo is a looper pedal equipped with an LCD display, stereo input/output, and MIDI control input. It allows you to create phrases up to 6 hours long, save them to 99 memory slots, and play them back. It also features 50 built-in drum patterns and a headphone jack, making it easy to practice by simply connecting your guitar and headphones.

Parts and Functions

The Loop Core Stereo features a TFT LCD display, various input/output jacks, control buttons, and a footswitch.

1. Power jack

Connects to the DC 9V adapter.

2. TFT LCD

Displays information, settings, and loop status.

3. VALUE / VOL knob

Used for selecting memory slots, adjusting volumes, and navigating settings.

4. INPUT jacks

Stereo or mono input for instruments.

5. OUTPUT jacks

Stereo or mono output for amplifiers or other devices.

6. Footswitch

Controls recording, playback, overdubbing, stopping, undo, and redo.

7. TAP / TEMPO button

Sets tempo for drum patterns via tap or manual adjustment.

8. SAVE / DEL button

Saves recorded loops to memory slots or deletes them.

9. SETTING button [check]

Accesses the settings menu for various configurations.

10. MIDI OUT/IN

Connects to external MIDI devices for control.

11. USB port

For PC connection, audio import/export, and firmware updates.

Basic Usage

Connect your guitar to the INPUT jacks and your amplifier to the OUTPUT jacks. Connect headphones to the Headphone jack for silent practice. Connect the DC 9V adapter to the Power jack and turn on the unit.

Footswitch Operations

VALUE / VOL knob Operations

Turn the knob to select memory slots (01-99). Empty slots are displayed in white, saved slots in red. Press the knob once to enter Loop Volume adjustment, or twice to enter Drum Volume adjustment. Turn the knob to adjust the selected volume. The screen returns to normal after 5 seconds of inactivity or when another button is pressed.

DRUM STYLE button Operations

Short press: Toggle drum patterns ON/OFF. Long press: Enter drum style selection. Turn the VALUE knob to choose a style. After selecting a style, a short press on the VALUE knob allows changing the time signature (4/4 or 3/4). Press the VALUE knob again to return to style selection. The screen returns to normal after 10 seconds of inactivity or pressing the DRUM STYLE button again. Time signature cannot be changed for saved slots. Starting tempo setting with drums OFF will turn drums ON.

TAP / TEMPO button Operations

Press twice or more to set drum tempo using tap tempo. Long press: Enter tempo setting screen. Turn the VALUE knob to change tempo. A short press on the VALUE knob allows changing the time signature (4/4 or 3/4). Press the VALUE knob again to return to tempo setting. The screen returns to normal after 10 seconds of inactivity or pressing the button. Tempo and time signature cannot be changed for saved slots. Starting tempo setting with drums OFF will turn drums ON.

SAVE / DEL button Operations

Short press: Enter SAVE screen. Turn the VALUE knob to select the desired slot, then press the SAVE button again to save. Long press on a slot: Enter DELETE screen. Press the button again to confirm deletion. The SAVE screen is not accessible if no recording has been made.

SETTING button Operations

Short press: Enter settings screen. Press again to return to normal screen. Turn the VALUE knob to select an option, and press the VALUE knob to confirm. Press the SETTING button again to return to the top of the settings screen.

• DISP: Adjust screen brightness and set whether to use a custom image for the startup screen (select USER).
• REC: Select REC mode: INSTANT (starts recording immediately), DETECTING (starts recording automatically after signal input), PRE-BEAT (starts count-in then records).
• DUB: Select DUB mode: REC→PLAY DUB (default), REC→DUB→PLAY.
• STOP: Select STOP mode: IMMEDIATE (stops immediately on double press), ONE SHOT (stops after one loop playback), LOOP END (stops after phrase playback on double press), FADE OUT (slow fade out on double press).
• PATH (AUDIO PATH): Change input/output settings. Refer to connection examples.
• HEADPHONES: Adjust headphone volume.
• RESET: Resets settings to factory defaults. All saved data in slots will also be erased.

DC power Jack

Connect a 9V, center-negative, 150mA or higher power supply (AC adapter). Current consumption is under 120mA, but 150mA or higher is recommended.

USB-C port

Connect to a PC with a USB-C cable (sold separately) for audio data import/export, setting the startup screen, and firmware updates.

PC Connection

When connected to a PC, the Loop Core Stereo is recognized as a USB flash drive.

Changing Startup Screen

Save a GIF file in the NUX LOOPER > NCL-2 folder > GIF folder. The DISP setting must be set to USER. Size limitations apply (320x170 pixels, Max 8 seconds, Max size 1MB). Only one GIF file should be saved (delete the default USERGIF.GIF).

Audio File Import/Export

Audio data for each slot is saved in the NUX LOOPER > NCL-2 folder > WAVE folder. This allows saving created phrase loops to a PC. WAV data can also be saved to the folder and played back on the pedal.

Loop Core Stereo only supports 44.1kHz/32 bits Stereo floating WAV format. Other data cannot be played. Use the NUX Audio Format Converter software (downloadable from the product page) to convert audio data to compatible WAV files.

Firmware Update

Firmware may be updated for new features/fixes. Check the product HP for the latest information. If newer data is available than what you have, follow these steps: Download "Loop Core Stereo Firmware (Mac or Windows)" from the product page. Extract the downloaded zip file.

1. Launch MIDI_DFU_Updater from the extracted folder.
2. Connect PC and pedal via USB cable. Simultaneously press the footswitch and DRUM STYLE button, then connect the AC adapter. The pedal display will show "FIRMWARE UPDATE START READY!".
3. Click the refresh button in MIDI_DFU_Updater and confirm "MIDI DFU" appears in MIDI Device Out/In.
4. Click file..., select the .bin file from the downloaded folder. (A message "This is a binary file!" is normal).
5. Click Start Update.

When the progress bar reaches 100% and the pedal displays "UPDATE OK!", the update is complete. Close MIDI_DFU_Updater and disconnect the AC adapter.

Connection Examples

Example 1: Mono Input / Mono Output
Connect your guitar to IN A (MONO) and your amplifier to OUT A (MONO). This is the most common setup. Set AUDIO PATH to "STEREO IN/OUT".

Example 2: Stereo Input / Stereo Output
Utilize all four jacks for stereo input and stereo output. Set AUDIO PATH to "STEREO IN/OUT".

Example 3: OUT A for Guitar, OUT B for Drum Machine
Output guitar signal and phrase loops from OUT A, and drum machine signals from OUT B. Set AUDIO PATH to "SPLIT IN/OUT". If a signal is input to IN B, it will be output from OUT B and not recorded. Recommended for separating instrument and rhythm machine output simply.

Example 4: OUT A & B to a Mixer
Connect both OUT A and OUT B to a mixer. OUT A carries the guitar signal and phrase loops, while OUT B carries the drum signal. This allows for individual adjustment and mixing on the mixer. It also includes frequency correction for a better signal from OUT A. Set AUDIO PATH to "SPLIT TO MIXER".

MIDI Control

Connect MIDI devices to the Loop Core Stereo's MIDI jacks (1/8") to control the pedal via MIDI. Refer to the table for function assignments.

Product Specifications

Accessories: User Manual (this document)

Note: Specifications are subject to change without notice.

Website: www.nuxefx.com

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