Frequently asked questions

What HX Tone Lab does, which Line 6 devices it supports, what it can't do, and how to put its presets on your device.

Getting started

What is HX Tone Lab?: HX Tone Lab is an AI-powered preset generator for Line 6 Helix and HX devices. Describe the bass or guitar tone you're chasing in plain language and it builds a matching preset you download as a .hlx file and load in HX Edit.
How does HX Tone Lab work?: It works in a few steps. First, you describe the tone — an instrument, a genre, an artist, a specific amp, or just a vibe. The AI then picks an amp, cab, mic, and effects from the device's full built-in model library and dials in their parameters. It assembles those into a complete signal chain sized to your device, and hands you a .hlx file to import in HX Edit. You can keep chatting to refine it — make it brighter, add a delay, build snapshots — until it's right.
What is a .hlx file and how do I load it?: A .hlx file is the preset format used by HX Edit, Line 6's free desktop editor. Download the file, open HX Edit with your device connected, and import or drag it into a preset slot. That's it — no extra software.

Which devices are supported?: HX Stomp, HX Stomp XL, HX Effects, and the Helix family — Helix Floor, Helix LT, and Helix Rack. Presets are tailored to each device's block limit and capabilities, from the HX Stomp's compact block count to the Helix's larger, dual-DSP layout.
Does HX Effects support amps and cabs?: No — HX Effects is an effects-only unit with no amp or cab modeling, so its presets use effects blocks only. The tool knows this and won't place an amp where the hardware can't run one.
Does HX Tone Lab work with the new Line 6 Stadium?: No — the new Line 6 Stadium series is not supported. It's a separate, newer platform from the Helix / HX family, so the .hlx presets HX Tone Lab generates won't load on it. Support may be considered down the road, but there's no Stadium support today.
Which other devices are NOT supported?: Beyond the Stadium series, other Line 6 products aren't supported either — Pod Go, Catalyst, Spider, and the older HD500-generation hardware. HX Tone Lab targets the current Helix / HX .hlx preset format specifically.

What data informs the model?: The AI is grounded in your device's actual built-in models — every amp, cab, effect, and mic — extracted directly from the official Line 6 firmware, plus metadata describing what each model is and how it's typically used, the per-device DSP and block limits, and a curated tone-reference guide. Because it works from the real model list, it only ever chooses blocks that genuinely exist and will load on your device — it can't invent a fictional amp.
Does it learn from or store my tone descriptions?: The AI model doesn't train on what you type — your description is used only to generate that one preset. We may keep minimal logs to debug problems and prevent abuse, but your inputs aren't used to train the model.

Will the preset sound exactly right?: Treat it as a strong starting point, not a finished mix. Tone is subjective and depends on your instrument, pickups, and output path (a real amp vs. FRFR vs. headphones). The AI makes musical, sensible choices, but expect to tweak to taste — and occasionally to swap a block it picked.
Can it create or load impulse responses (IRs)?: No. HX Tone Lab can't add impulse responses, because it has no way to know which IR files are loaded on your device. If you upload an existing preset that already uses IRs, it preserves them through edits — but it won't generate new ones. Use a cab block, or load your own IRs in HX Edit.
Can I edit a preset I already have?: Yes. Upload an existing .hlx and ask for changes — swap the amp, add a delay, build snapshots. It preserves your hardware assignments (expression-pedal and footswitch mappings), IR references, and routing where possible, so your setup survives the edit.
Are complex parallel or split routings reliable?: Standard signal chains are well-tested. More advanced layouts — parallel paths, crossover splits, and dual-DSP routing on Helix — are structurally valid and modeled on real factory presets, but not every novel layout has been verified on hardware. If something looks off in HX Edit, it's easy to adjust there.

Is HX Tone Lab free?: Yes — describe a tone, generate a preset, and download the .hlx at no cost, with no paywall. Every generation calls a real AI model and runs on paid hosting, so if it saved you time you can optionally chip in on the Buy me a coffee page. Tips are appreciated but never required.