Line 6 Hx Stomp Explained: Features, Types and Tips

The Line 6 HX Stomp is a compact multi-effects processor that runs the same modeling engine as the Helix Floor — one of the most respected direct-recording and live-performance platforms in modern guitar. What it gives up is size and footswitch count: three switches, a compact chassis, and up to six processing blocks at once rather than the Helix's 32. What it offers in return is access to over 300 amp, cab and effects models in a box small enough to fit in a rucksack, at a price point that makes it genuinely accessible rather than merely aspirational.

The HX Modeling Engine

Line 6's HX engine is the company's highest-quality modeling technology, developed with careful attention to the dynamic response and harmonic complexity of analogue circuits. Its amp models include detailed recreations of Fender, Marshall, Vox, Mesa/Boogie, Dumble and many other classic designs, with separate cabinet impulse responses that can be swapped independently. The sound quality is competitive with the best in the category — the Fractal FM3, Kemper Stage, and Neural DSP Quad Cortex all occupy similar territory at similar or higher prices.

The effects library covers virtually the entire range of what a working guitarist needs: drives, fuzzes, compressors, modulation effects (chorus, flanger, phaser, tremolo, vibrato), delays of every type, reverbs, pitch shifting, whammy, harmoniser, and loop functions. Each effect type includes multiple variants based on different original hardware units.

What You Get With Six Blocks

Six simultaneous processing blocks sounds limiting on paper but works well in practice for most playing contexts. A typical signal chain — drive into amp with cab, with delay and reverb at the end — uses five or six blocks comfortably. The limitation becomes apparent for complex rigs with parallel signal paths, multiple modulation types, and extensive FX loops. For live work that does not require radical complexity, six blocks is generally sufficient. For players who need more, the HX Stomp XL offers six footswitches (allowing more on-the-fly switching) and the Helix LT steps up the block count to 32.

USB Audio Interface

The Line 6 HX Stomp doubles as a 2-in/2-out USB audio interface. Connect it to a computer and it appears as an audio device — useful for direct recording without a separate interface, for reamping (sending a DI'd guitar signal back through the processor in post-production), and for recording processed signal alongside the DI guitar track simultaneously. At this price point, having a quality audio interface built in adds genuine value for home recording players.

Connection Options

• Left/right 6.35 mm outputs — to amplifier, mixer, or monitor speakers
• Instrument and aux inputs — standard guitar signal, plus an auxiliary input for running backing tracks or a second instrument
• Send/return loop — for inserting external pedals into the signal chain within the Stomp's signal processing
• Headphone output — for silent practice with amp and cab simulation active
• MIDI — in/out via 3.5 mm TRS adapters for integration with other devices
• USB-C — audio interface and connection to HX Edit software

HX Edit and the Preset Ecosystem

HX Edit is Line 6's free computer editor for the Helix family. It provides a drag-and-drop interface for building signal chains, a much easier way to manage presets than using the hardware alone, and access to the Line 6 Customtone database of shared presets. The quality of user-shared presets varies widely, but there is a large library of well-regarded starting points for common tones — Dumble-adjacent cleans, Marshall crunch, Mesa high-gain, and many others. Most experienced users build their own presets from scratch and use the community presets as references rather than final destinations.

Who It Is For

The HX Stomp suits players who want a compact, high-quality direct-recording and performance tool without carrying a larger unit. It is popular as a fly rig — small enough to pack as carry-on luggage while still covering the full range of a player's live tones. It works equally well as a desktop recording unit, an in-ear monitor feed for live performance, or a full pedalboard replacement. For players whose context requires more complex signal chains or more footswitches, the Stomp XL or Helix LT are the natural next steps. For those who want the most from the HX engine in the smallest form factor, the Line 6 HX Stomp remains one of the best options in the market. For guidance on choosing between the variants, see our complete buyer's guide. For new users, our beginner's guide covers the essentials.

Frequently Asked Questions