# BOSS GX-10: reconstructing the TSL preset format

> A specification reconstructs the .tsl.json preset format used by BOSS Tone Studio for the GX-10 processor. It maps the JSON structure, hex-encoded parameter arrays, patch names, effect routing and control assignments, with Python examples and research notes.

- Type: Case study
- Targets: App
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/ihorman/gx-10-tsl-spec>
- Primary source: <https://github.com/ihorman/gx-10-tsl-spec/blob/79f225953558a135c782e0a5a25375c79f8a54c6/specification.md>
- Catalog page: <https://awesomerea.org/resources/boss-gx10-tsl-format-case/>
- Record JSON: <https://awesomerea.org/resources/boss-gx10-tsl-format-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/boss-gx10-tsl-format-case/index.md)

## Requirements & limits

- **Prerequisites:** A GX-10 TSL export from BOSS Tone Studio is the documented input.
- **Limits:** The three-byte fxItem encoding remains a working hypothesis, and hardware validation is requested.
- **License:** MIT license.

## Primary sources

1. <https://github.com/ihorman/gx-10-tsl-spec/blob/79f225953558a135c782e0a5a25375c79f8a54c6/specification.md>
2. <https://github.com/ihorman/gx-10-tsl-spec/blob/79f225953558a135c782e0a5a25375c79f8a54c6/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.