Audio
Shure AD4Q troubleshooting
The Shure AD4Q problems live-event techs bring to Ask Roadie most. 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 AD4Q 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 →
What is the current AD4Q / Axient Digital firmware version and how do I stay current?
Likely cause: Running a single matching firmware baseline across the receiver and its transmitters prevents Firmware Mismatch lockouts; knowing 1.4.65 is current lets a tech confirm whether a rack is behind before a show.
- Step-by-step fixGet the fix →
Which batteries and chargers do the AD1/AD2 transmitters use?
Likely cause: The SB900B lithium pack is what feeds Axient per-transmitter battery-health and time-remaining metering; AAs cannot report it.
- Step-by-step fixGet the fix →
How does automatic interference detection/avoidance work with the AD4Q?
Likely cause: The auto-move only completes if the transmitter can be reached over ShowLink to retune in sync with the receiver.
- Step-by-step fixGet the fix →
How should I configure the two Dante ports (redundancy vs split)?
Likely cause: Choosing the wrong Dante mode either loses redundancy or creates a network loop; matching mode to cabling is what makes failover actually work.
- Step-by-step fixGet the fix →
What encryption does the AD4Q use and how do I enable it?
Likely cause: Encryption is keyed at sync time; the transmitter only gets the current key when synced, so re-syncing after any change is mandatory.
- Step-by-step fixGet the fix →
How do I remotely change transmitter frequency/gain during a show (ShowLink)?
Likely cause: ShowLink is what lets Axient move a transmitter off interference automatically and lets you remote-control packs mid-show.
- Step-by-step fixGet the fix →
What is the correct firmware update process and the main gotcha?
Likely cause: Axient's coordinated features assume a single firmware baseline across the whole system; updating everything to the same version restores them.
- Step-by-step fixGet the fix →
When do I use Standard vs High Density (HD) transmission mode?
Likely cause: HD trades range for spectral efficiency; matching mode to the use case avoids both dropouts and wasted spectrum.
- Step-by-step fixGet the fix →
What is Quadversity and what is the trade-off on an AD4Q?
Likely cause: Four spatially separated antennas eliminate coverage nulls that two-antenna diversity cannot, at the expense of channel count.
- Step-by-step fixGet the fix →
How do I set up antennas and active-antenna bias power on the AD4Q?
Likely cause: Bias must match the antenna type — powering a passive antenna or double-powering an active one causes faults; correct gain staging prevents overload and dropouts.
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 AD4Q
- 1. Pick the Shure AD4Q. 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.