Inputs and outputs
Every jack on the Helix Stadium XL Floor, on a diagram you can click — what it's for, and the thing about it that costs people an evening.
Helix Stadium XL Floor · Rear panel · schematic, drawn from Line 6’s panel diagram
INSTRUMENT 1 and 2
TS, ¼″rear panel
Two mono instruments, or one stereo instrument. Each has its own impedance selection, switchable pad and noise gate.
Two inputs is the XL's other real upgrade. A guitar and a bass, or a guitar and a synth, can run their own paths without a switcher in front.
Helix Stadium XL Floor Cheat Sheet (Rev B)Facts about the audio path
Two instrument inputs, not one
Two mono instruments or one stereo one, each with impedance, a pad and a gate before any block. The Stadium Floor has a single INSTRUMENT jack.
Helix Stadium XL Floor Cheat Sheet (Rev B)Four FX loops, not two
And Returns 3 and 4 are the ones documented as always-on Aux inputs for monitoring the house mixer.
Helix Stadium XL Floor Cheat Sheet (Rev B)Four control jacks and a built-in pedal
CONTROL A/B and C/D take expression pedals, footswitches or drum triggers, and the XL adds a pedal on the chassis. The Stadium Floor has two control jacks and no pedal.
Helix Stadium XL Floor Cheat Sheet (Rev B)Three outputs, each with its own mix
Main, alternate and headphones, chosen with the buttons above the Volume knob — the same Matrix mixer as the Stadium Floor.
Helix Stadium Owner's Manual 1.3.2The engine is identical to the Stadium Floor
Same touchscreen, same Clones, same Showcase, same block caps. Nothing about tone differs between the two.
Helix Stadium Owner's Manual 1.3.2