Stratus vs Line 6 HX Stomp: The Gold Standard vs the Open Upstart

Last updated: August 31, 2026. HX Stomp specs below come from Line 6's own product page and current retail listings; all sources are listed at the end.

The Line 6 HX Stomp is the pedal that changed what "compact modeler" means. Since 2018 it has been the default answer to "I want Helix on a pedalboard," and years of free firmware have only made it better: 300-plus Helix amps, cabs, and effects, eight blocks per preset, snapshots, a stereo loop, true bypass, a 24-bit/96 kHz interface, and a build quality Yamaha stands behind. It costs $599.99. The Stratus costs $299, and it comes at the same job from the open side of the industry: native Neural Amp Modeler captures instead of proprietary models, effects with readable source code, and an AI that writes new ones. This is the comparison a lot of people asked us for. Here's the honest breakdown.

The short version

• HX Stomp is the closed-ecosystem gold standard. Component-level modeling of 70-plus amps and 200-plus effects, eight blocks with split and parallel paths, snapshots for dropout-free changes, capacitive-touch footswitches, a stereo FX loop with 4-cable method, 5-pin MIDI, IR loading, a looper, and a serious USB interface — all backed by the deepest editor (HX Edit) and preset community (CustomTone) in the business.
• Stratus is the open answer at half the price. Native NAM A2-Lite captures (500,000+ browsable on TONE3000 from the phone), 19 effects in any order, a 5-minute looper, 128 presets with 14 hands-free, full USB-MIDI — 11.6 ounces, $299.
• Models vs captures, and one AI. Line 6 models amps by measuring circuits; NAM captures them by training on the real thing, and the format's test results are published. And only Stratus has an AI that invents effects from a description.

Side by side

What Line 6 built

Credit where it's overdue: the HX Stomp is a masterpiece of product design. It's the same HX modeling as the flagship Helix, running on one SHARC instead of two, with a UI that's fast enough to edit on the floor, capacitive footswitches you can touch to jump to a block, snapshots that change a dozen parameters without a dropout, a stereo loop that makes 4-cable method with a real amp trivial, and an interface that records at 24/96 with re-amping. HX Edit is the best desktop editor in the category. CustomTone has years of shared presets. Line 6's firmware cadence set the standard for the whole industry. If there's a closed ecosystem worth buying into, it's this one, and $599.99 is fair for it.

What Stratus built

The Stratus asks a different question: what if the amp side weren't a model at all, but a capture of the real amp, in an open format anyone can make and share? Its engine is NAM Architecture 2 — whose published testing (39 tones measured, a 1,000+ participant blind study, open-source data) showed A2-Lite outperforming Quad Cortex captures at about half the CPU of a $3 chip — with 500,000-plus captures on TONE3000 browsable from your phone. Around it: 19 effects free in any order, a 5-minute looper with unlimited overdubs, 128 presets with 14 hands-free, full USB-MIDI. And the AI FX Builder, which writes new effects as FAUST DSP code from a description — compilation checks, automated code review, audio testing (~95% of builds deliver), 30 free builds monthly, source in Advanced Mode, free VST/AU versions, Tone Shop developers keep 75%. It's mono, it has no expression input or FX loop, and it's $299.

Models vs captures

This is the philosophical split of the decade in guitar. Line 6 measures each stage of an amp's circuit and rebuilds it in code — which gives you every knob behaving like the real one, and a library curated by one company. NAM trains a neural network on the real amp's output — which gives you that exact amp, at that exact setting, made by anyone with a laptop, and a library of half a million made by everyone. Neither is wrong. Line 6's approach is more controllable; NAM's is more open and, per the published tests, extraordinarily accurate. The HX Stomp doesn't run NAM; the Stratus runs nothing else for amps. Pick the philosophy, and the pedal follows.

On stage

The HX Stomp's stage story is the best in its class: snapshots, capacitive switches, a loop, stereo, 5-pin MIDI as a command center, an expression pedal. The Stratus's is simpler: 14 presets hands-free from color-coded footswitch pairs, 128 stored, per-effect bypass and looper transport over USB-MIDI, mono out to the amp you already own. We've built custom Stratus algorithms for players like ZZ Top's Billy Gibbons; the pedal is meant to disappear into a rig, not command one.

Cost of ownership

HX Stomp: $599.99, everything included, plus a decade-long track record of free updates that add real models. Stratus: $299 in, 19 effects free, premium from $14.90 (22-effect bundle $99), half a million free captures, 30 free AI builds monthly. The $300 gap buys stereo, a loop, snapshots, an expression input, and the Line 6 ecosystem. Keeping it buys native NAM and a generative AI — and, honestly, a second Stratus.

Which should you buy?

Buy the HX Stomp if: you want the most complete, best-supported compact modeler in the industry — stereo, loop, snapshots, MIDI command center, HX Edit, CustomTone — and you're happy inside Line 6's ecosystem. It earns its reputation every night.

Buy the Stratus if: you want real amp captures from an open library, effects you can read the code for, and the only AI in hardware that invents effects on request — for half the money. That's the pedal we built.

Sources

• Line 6 — HX Stomp product page (modeling, blocks, snapshots, I/O, bypass, MIDI, interface)
• Sweetwater — HX Stomp listing (price, 8 blocks, 126 presets, SHARC note)
• Sweetwater — HX Stomp XL listing (XL variant)
• TONE3000 — NAM Architecture 2 (A2) (test methodology and results; code and data are open source)
• Chaos Audio — Stratus product page (Stratus specs and pricing)

Want the open side of the argument on your board? The Stratus is $299 with free US shipping — and your first 30 AI builds are on us every month.