LIVTRA MOSAIC Lightweight Multi-Effects Processor – 3 Footswitches, 8+1 Effect Modules, 75 Presets, IR/NAM Support, USB Audio Interface, for Guitar/Bass Practice, Recording & Performance


The LIVTRA MOSAIC is a lightweight, portable multi-effects processor designed for creators who need a complete practice and recording solution in one compact unit. Weighing only 395g, it features 3 metal footswitches for preset group switching and STOMP mode – each footswitch can be mapped to toggle specific effect modules on/off. Built around an 8+1 effect chain (FX1, FX2, AMP, CAB, DEL, MOD, REV, EQ + flexible module order), it delivers 30 amp models and 30 cabinet IRs, with full support for NAM A2 file import and third-party IR loading. The 1.47" TFT screen provides clear visual feedback, while the 1000mAh battery offers up to 7.5 hours of cordless use. USB-C connectivity enables audio interface functionality for computer/phone recording, MIDI control, and OTG direct recording. Bluetooth audio allows wireless backing track playback, and Bluetooth MIDI connects to the official mobile app for preset editing. The host software adds advanced features like AI stem separation and custom drum pattern programming. With 75 preset slots (48 factory + 27 user), 44.1kHz/24-bit audio, and comprehensive I/O (6.35mm input/output, 3.5mm headphone out), MOSAIC is the ideal companion for practice, transcribing, recording, livestreaming, and light performances.


Product Features

️ 3 Metal Footswitches – Preset group switching and STOMP mode; map any footswitch to toggle specific effect modules on/off.

8+1 Effect Modules – FX1 (gate/comp), FX2 (drive/dist/fuzz), AMP (30 models), CAB (30 IRs), DEL (8 types), MOD (5 types), REV (7 types), EQ (3/6/8-band) – freely rearrangeable signal chain.

NAM A2 & IR Support – Import NAM A2 files to replace AMP slots; load third-party IRs for CAB slots – endless tonal expansion.

️ USB Audio Interface – 24-bit/44.1kHz recording with Loopback; connects to computer or phone via USB-C; OTG recording supported.

Bluetooth Audio & MIDI – Wireless backing track playback via BT Audio; connect to mobile app via BT MIDI for preset editing.

1000mAh Battery – Up to 7.5 hours of use; USB-C charging with pass‑through support (use while charging).

1.47" TFT Screen – Clear display of preset info, effect chain, parameters, and device status.

75 Presets – 48 factory presets + 27 user slots; REPLACE/SWAP save modes.

️ AI Stem Separation – Host software feature for extracting guitar tracks from songs – practice with isolated backing.

Custom Drum Patterns – Program drum rhythms via host software for practice accompaniment.

Dedicated Headphone Out – 3.5mm TRS stereo (16Ω) for silent practice.

Compact & Lightweight – 168×71×43.5mm, only 395g – fits in a backpack.


Technical Parameters

Dimensions – 168mm (L) × 71mm (W) × 43.5mm (H)

Weight – Approx. 395g

Display – 1.47‑inch TFT color screen

Audio Quality – 44.1kHz / 24‑bit

Signal‑to‑Noise Ratio – 103dB

Effect Modules – 8+1 (FX1, FX2, AMP, CAB, DEL, MOD, REV, EQ)

Preset Slots – 75 total (48 factory + 27 user)

Amp Models – 30 (supports NAM A2 file import)

Cabinet IRs – 30 (supports third‑party IR import)

Input – 6.35mm TS mono (1MΩ impedance)

Output – 6.35mm TS mono (100Ω impedance)

Headphone Output – 3.5mm TRS stereo (16Ω impedance)

USB – Type‑C (DC 5V 1A charging + audio + MIDI + OTG)

Battery – 1000mAh lithium (approx. 7.5 hours)

Bluetooth – Audio input + MIDI (APP control)

Tuner – Built‑in, 400‑480Hz reference (default 440Hz)

Footswitches – 3 metal switches (A/B/C) with LED indicators

Host Software – PC/Mac + mobile app; supports preset management, IR/NAM import, AI stem separation, drum programming, firmware updates


Package Contents

1 x LIVTRA MOSAIC Multi‑Effects Processor

1 x USB‑C Charging/Data Cable

1 x User Manual


️ Important Notes

Power Source – Use a standard 5V 1A USB‑C power adapter. Supports pass‑through charging while in use.

Battery Care – Fully charge before first use. Charge every few months if storing for long periods.

Headphone Safety – Turn MASTER volume down before connecting headphones, then gradually increase to a comfortable level.

Footswitch Use – Press footswitches with normal force. Avoid excessive force or body weight to prevent damage.

Bluetooth Pairing – For MIDI control, connect to “Mosaic Midi” via the official mobile app (hidden until paired). For backing tracks, connect to “Mosaic Audio” in system Bluetooth settings.

NAM/IR Import – Use the host software to import NAM A2 files and third‑party IRs. Follow software instructions for proper loading.

Save Operation – After editing a preset, long‑press the MASTER knob to save. Unsaved changes will be lost when switching presets or powering off.

Interface Identification – Guitar input: 6.35mm TS; Headphones: 3.5mm TRS. Do not mix up connections.

Measurement Tolerance – Allow ± 3 mm size deviation due to manual measurement.

Color Variation – Actual product color may differ slightly from images due to monitor settings and lighting.