Line 6 HX Effects

A Pedalboard Format to Capture the Helix Spirit (and the M-Series Legacy)

The HXEFFECTSII F15 is aimed at those who enjoy the feel of a real amp and pedalboard but want access to the signature effects of the Helix family without opting for an all-in-one amp simulation solution. It embodies the Line 6 philosophy: detailed modeling, quick editing, and easy integration into an existing rig, with the bonus of effects inherited from previous generations (M-Series and Stompbox Modeller) to cover a wide range of textures.

Who Is the HXEFFECTSII F15 For, and Which Styles Does It Excel In?

This multi-effects unit is an excellent choice for intermediate to professional guitarists and bassists looking to streamline their pedalboard: fewer cables, recallable presets, and consistent sound from gig to gig. In rock, pop, blues, funk, and worship, it easily replaces several modulation, delay, and reverb pedals while maintaining a very natural "stompbox" approach.

In a live context, you can organize your sounds by snapshots/presets, control other gear via MIDI, and use the loops to keep your favorite pedals (drive, fuzz, preamp) in the right place in the chain. In the studio, the switchable instrument/line input makes it a convenient external processor for treating takes, synths, or re-amping, with very low noise levels.

Controls, Routing, and Integration: Designed to Be the Center of Your Setup

The HXEFFECTSII F15 focuses on quick usability: footswitch effect selection, immediate access to editing, and a clear display to follow what you activate. The true bypass switching (selectable analog bypass) helps preserve the signal when the unit is bypassed, and the HX engine allows stacking complex chains while maintaining dynamic response.

Regarding connections, the pedal integrates easily thanks to stereo inputs/outputs, parallel signal paths, two assignable effects loops (which can be linked in stereo), as well as two expression pedal inputs (wah and volume by default). To go further, it can become a true "brain": MIDI IN, MIDI OUT/THRU, USB MIDI for computer communication, and up to four amp switching outputs to manage channel or function changes on stage.

Sound Character

The sonic character of the HXEFFECTSII F15 stands out with very clean reproduction, a wide dynamic range, and a responsive playing feel, especially appreciated on touch-sensitive effects (compressors, filters, pitch, modulations). Delays and reverbs offer beautiful depth, while modulations range from subtle to richly textured without dulling the attack.

Whether you're seeking stereo ambient atmospheres, precise rhythmic echoes, a musical tremolo, or more modern treatments (pitch/synth, filters), the unit maintains a coherent sound that's easy to place in a mix. The goal is clear: multiply colors while keeping a solid sonic foundation, with low noise and a "high-end pedals" feel.

Technical specifications

Effects	Multi-effects, Looper / Sampler, Modeling Processor	Type	sector
Format	Pedalboard	Use	electric guitar
EQ	Yes	Color	Black

Audio engine	HX (Helix technology)	MIDI	IN, OUT/THRU
Number of simultaneous effects	up to 9	USB-To-Host	data connection for editing
Effect types	distortions, delays, reverbs, modulations, filters, pitch/synth, compressors/limiters, equalizers, wah	Expression pedal connections	2 (Wah and Volume by default)
Looper	integrated	Footswitches	6 (capacitive)
Support	impulse response (IR) loading	Power supply	included (DC adapter)
Dynamic range	123 dB	Documentation	included
Switching	selectable analog bypass (true bypass)	Required power	9V DC
Inputs	Left/Mono, Right	Minimum current	2000 mA
Outputs	Left/Mono, Right	Polarity	center negative
Send/Return	1 and 2 or stereo	Power connector	2.5 mm