The problem is harder than that. if it was failing or making the noise on a consistent basis then you have something to go on. Right now it has made this awful racket 3 times. Once at 3am and by the time it woke everyone up and I got downstairs and thought it was the subs, so went to turn them off and the deep rumbling sound stopped. OK. So l left them turned off.

About 5 days later it happened again when I was not home and my wife told me about it. said it lasted for about 15-20 minutes.

Then it happened when I was home about 3 weeks after and I turned off the DSP and the problem stopped.

Now, do I leave everything turned on and hope that it makes the noice when I am around and not sleeping in the hopes of figuring if I pull the leads from the preamp and it stopes that I now have to deal with Anthem to see why the Preamp is doing this only for them to point the finger back at Axiom. Or just turn the unit off when I am not using it and solve the issue that way?


Anthem: AVM60, Fosi DAC-Q5
Axiom: ADA1500, LFR1100 Actiive, QS8, EP500, M3, M3comp, M5