The Line 6 Helix Stadium XL is a floor-based amp and effect modeler. It uses Line 6's Agoura modeling, which re-creates how individual components in a tube amp interact with the rest of the circuit, including the power supply and the capacitance between wire runs in the chassis. It includes 18 Agoura guitar amps and six Agoura bass amps. A Hype knob moves a model's tone from a faithful re-creation of the original amp to a polished, produced sound.
Controls include an 8-inch high-resolution touchscreen, 12 footswitches with OLED scribble strips, an onboard expression pedal with toe switch, and a set of physical controls. Focus View provides context-based editing for the selected model. The Showcase engine plays back tracks and can automate preset and parameter changes through a whole performance. Line 6's cloud-based Proxy cloning engine captures the sound of amps and distortion pedals.
The free Stadium 1.4 firmware update adds Showcase stem separation into five stereo stems: Drums, Bass, Guitar, Vocals, and Other. It also adds new Agoura models: four eras of Super Lead tones, two more amps, four distortion pedals, and two modulation effects. Preset load times are shorter. Matrix Mixer settings get MIDI control, and the Helix Stadium app can connect over USB-C as well as Wi-Fi.
- Amp models
- 18 Agoura guitar amps, 6 Agoura bass amps
- Display
- 8-inch high-resolution touchscreen
- Footswitches
- 12, with OLED scribble strips
- Expression pedal
- Onboard, with toe switch
- Tone control
- Hype knob
- Connectivity
- Wi-Fi, Bluetooth, USB-C (app connection with Stadium 1.4)
- Cloning
- Cloud-based Proxy cloning engine for amps and distortion pedals
- Playback and automation
- Showcase engine, with stem separation (Drums, Bass, Guitar, Vocals, Other) in firmware 1.4
- Editing
- Focus View; editing over tethered USB with firmware 1.4
- Other features
- Preset Audition, increased headroom, reduced weight, nested Clone folders, mono-to-stereo block conversion
- Firmware
- Free Stadium 1.4 update