Look it up fast

Every control on an interactive top panel — eight switches, and the volume knob that presses in.

Every jack on one rear panel, the 3-amp supply trap, and the aux input hiding in the loop.

The numbers that answer a question, with the HX Stomp comparison where it differs.

All 440 amps, cabs and effects decoded from Line 6's own list.

Two settings decide whether it sounds like the demo or sounds broken. Both live in a menu, and neither is a tone control.

What an impulse response is, how to load one, and why a downloaded preset can load fine and still play the wrong cabinet.

Eight positions and how to spend them well.

Effects pedal, four-cable, direct, bass or interface.

Four snapshots, the footswitch modes, and which layer a change belongs on.

What a controller can actually reach, the three messages that recall a sound, and the trick that lets one preset serve several songs.

Straight answers to the things people actually ask.

Symptom, cause, fix — including what is documented behaviour rather than a fault.

What an update changes, what it leaves alone, and the one-minute backup that means it never costs you anything.

Block, snapshot, Play view, Edit view, 4CM, Legacy.