Troubleshooting

The knob drives one output at a time — main, alternate or headphones — set by the three buttons above it. Press the one you are listening to.

Holding the lit output button disables the knob so it cannot be knocked on stage. Hold it again to unlock.

Every Clone block is mono, and anything stereo before one gets summed. Move your stereo effects after the clone.

PROXY cloning arrived in Helix Stadium firmware 1.3. Update, and check the Main Menu icon — a red dot there means an update is waiting.

Song tracks, loops and preset clips all live on the card, which sits under the security panel on the rear. It ships fitted — if it has been removed, Showcase has nowhere to read from.

Press MODE to toggle your two main modes. Hold it to see every mode, including Transport.

Hold FS1 + FS7 to cycle it back through bank, preset, snapshot, song and marker.

Touching a switch selects its block without changing the sound. Nothing is wrong.

Input and output blocks turn bright red when they clip, and FX Loop blocks turn red when the Return clips. Find the red one — that colour is the whole metering system.

The Instrument input has a switchable pad and its own impedance setting, before any block. Use them rather than spending a block on a gain stage.

Four amps or preamps per preset, two per path. Four clones, two per path. Eight cabs, four per path. Two poly effects per path. None of these are DSP limits.

A Clone costs about as much as a full Agoura amp model. Two of either on one path plus effects will exhaust that path — but the other path is still empty.

USB A is a host port, for an Ethernet adapter. The computer goes in USB C.

Earlier Helix units use USB Type B. The Stadium is USB-C and the old cable does not fit.

Global Settings > Preferences > Snapshot Edits decides this. Recall (the default) keeps your changes as you left them. Discard returns the snapshot to its last-saved state — which is the behaviour you want live, and the behaviour that eats your work while you are building. Hold BYPASS and press SAVE to flip it at any time; the camera icon on the Home screen is grey for Recall and red for Discard.

That is exactly what an unedited snapshot does — it carries the state you arrived with. It only becomes its own thing the moment you change something in it. Nothing is broken; you have simply not written it yet.

Saving a preset stores all of its snapshots and remembers which one you were on. If a song should always start on the intro sound, select that snapshot and then save — the choice is made at save time, not at load time.

Set Global Settings > Footswitches > Snapshot Mode Switches to Manual Return and it stays in snapshot mode until you press CANCEL. Auto Return is right when snapshots are an occasional visit; Manual Return is right when they are how you play the set.

Trails Off mutes repeats and decays the moment the block is bypassed. Trails On lets them ring out naturally, through a bypass and through a snapshot change. It is set per block, so one delay left wrong is enough to make a whole rig feel abrupt.

Never connect these XLR outputs to a device whose XLR inputs have 48V phantom power enabled. On a desk, that means switching phantom off for those channels before you plug in, not after.