Audio
Allen & Heath Avantis troubleshooting
The Allen & Heath Avantis problems live-event techs bring to Ask Roadie most (also called A&H Avantis, AH-AVANTIS, AH-AVANTIS-SOLO, AH-AVANTIS-W-DPACK). Pick your symptom, or describe your own in plain words, and get the likeliest fix first, with the manual page when there is one.
Common Avantis errors & problems
What techs run into most, and what's usually behind it. The step-by-step fix for your exact unit is in Ask Roadie.
- Step-by-step fixGet the fix →
A fader does not return to its stored value when switching layers (hanging fader)
Likely cause: Motor faders can lose their target on fast layer changes; calibration and firmware fix software cases, mechanical drag is hardware.
- Step-by-step fixGet the fix →
Avantis quick specs — channels, buses, I/O, power, weight, dimensions
Likely cause: Core reference so a tech can size power, rack space and I/O expansion at a glance.
- Step-by-step fixGet the fix →
Console powers on but both screens stay black / will not boot (or shows "&" logo then goes black)
Likely cause: A blank boot is either corrupt firmware (recoverable via USB re-flash) or a hardware failure (needs service); the USB re-flash is the definitive split.
- Step-by-step fixGet the fix →
Dante (or 128-channel digital split) loses sync mid-service, audio dropouts
Likely cause: Clock loops or dual-master setups cause periodic resync and dropouts; a single leader with matched sample rate is the only stable topology.
- Step-by-step fixGet the fix →
DX expander through GX4816 lands on the wrong SLink channel range (e.g. starts at ch65 not ch49)
Likely cause: SLink is a shared 128ch transport allocated in order; the console shows real allocation, not a nameplate slot.
- Step-by-step fixGet the fix →
DX unit firmware will not update when connected through a GX4816 or behind another device
Likely cause: Update propagation across chained SLink devices was unreliable; a direct link guarantees the console talks to that one unit.
- Step-by-step fixGet the fix →
DX168 / DX32 / GX4816 expander not discovered or dropping out on SLink
Likely cause: SLink faults are almost always cabling, a port-mode mismatch, or a device further up the daisy chain; isolating direct-to-console splits hardware from cable/config fast.
- Step-by-step fixGet the fix →
How to clock the Avantis to other show gear (wordclock, Dante/MADI/gigaACE)
Likely cause: Digital consoles need one shared reference; naming the master and matching rate prevents ticks and dropouts.
- Step-by-step fixGet the fix →
How to update Avantis firmware / what is the current version
Likely cause: Gives the exact current version and the safe USB update flow so a tech does not flash blind before a show.
- Step-by-step fixGet the fix →
Touchscreen briefly freezes / short display-freezing moments during operation
Likely cause: The XCVI audio DSP runs independently of the ARM/UI processor, so a UI hang does not drop audio; firmware updates target the UI layer.
Not on the list? Describe it your way, or paste the error code off the display. Ask Roadie works the problem with you until it's fixed or you have a clear next move.
How Ask Roadie helps with the Avantis
- 1. Pick the Allen & Heath Avantis. It's already in the list.
- 2. Describe what you're seeing. In your own words, or the error code off the screen.
- 3. Get the likeliest fix first. Steps in order, the manual page when there is one, and a note when other techs have confirmed it.
- 4. Still broken? Tap 👎 and it keeps going from where you left off.