ZZ9000AX noise/distortion

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  • Amiga model: A4000D
  • 680x0 CPU: 68060
  • RAM Configuration: 128MB on BFG9060 + 256MB on ZZ9000
  • Kickstart, AmigaOS Versions: 3.2.2,
  • ZZ9000 Firmware version: 1.13
  • ZZ9000 Driver version: P96
  • Monitor model: Dell LCD
  • Other Zorro cards: reA4091, CPLDICY (ZII I2C Controller)


I am having issues with the sound since installation of the ZZ9000AX.

When I connect the AAUD connector cable for Paula passthrough, as descibed in the manual, there is a lot of noise.

When I flip the AAUD cable, as I have read about here on the forum, everything seems to work OK at first.
But only until I play a sound through Paula, like a system notification sound. After that there will be noise like an echo, and the noise will stay until the computer is switched off (a reset does not help).

I have also tried to remove the Paula pass through cable, and using rca cables from the motherboard audio connectors to the input of the ZZ9000AX.
In this case the noise/echo is still present, but somewhat less.

The symptoms are the same booting from Amiga Testkit og playing a game from floppy disk.

Any ideas?

Best regards

I have the same problem