Audio
d&b audiotechnik A-Series (AL60 / AL90) troubleshooting
The d&b audiotechnik A-Series (AL60 / AL90) problems live-event techs bring to Ask Roadie most (also called A-Series, AL60, AL90, d&b AL60). 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 A-Series (AL60 / AL90) 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 →
AL60 blown driver / damaged components
Likely cause: The passive cabinet relies on amp-side protection limiters matched to the setup.
- Step-by-step fixGet the fix →
AL60 splay angles / array coverage
Likely cause: Asymmetric/augmented array geometry is set by the flying hardware.
- Step-by-step fixGet the fix →
AL60 thin low end / no subs
Likely cause: CUT and CPL reshape LF for the system configuration.
- Step-by-step fixGet the fix →
AL60 wiring / NL4 pinout / linking
Likely cause: Two 8 ohm cabinets in parallel = 4 ohm per channel.
- Step-by-step fixGet the fix →
AL90 too bright up close / dull at distance
Likely cause: Air absorption grows with distance and HF.
- Step-by-step fixGet the fix →
interference on monitors / data near AL60
Likely cause: Neodymium drivers create strong stray magnetic fields.
- Step-by-step fixGet the fix →
which amp setup for AL60 / AL90 (PS, Out, In, AP)
Likely cause: Each setup applies the matching FIR/IIR processing; wrong setup = wrong directivity and EQ.
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 A-Series (AL60 / AL90)
- 1. Pick the d&b audiotechnik A-Series (AL60 / AL90). 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.
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