AVS Forum Special Member
Join Date: May 2004
Location: Fort Collins, CO
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Scary noise and then failure
Last night, as I was watching a football game at low volume, my 88A put out a non-stop high pitched screeching static at full volume to all of my speakers. It scared the heck out of me. Not knowing what the problem was, I rushed up to turn off the AVR, and the sound continued. I turned off the amps, and the static sound continued to come out of the subs. The sound was not harsh coming from the subs, so I waited a bit to see if it would stop. It did not. I unplugged the 88A, waited 10 seconds, and plugged it back in. No more noise, but no more output either. I tried refreshing the DSP, but there was no change.
I was so rattled that I didn’t want to troubleshoot anymore and just took the 88A out of my system. The volume of the static was as loud as when I had mistakenly run the speaker level tone or a sweep with the 88A at full volume. If you haven’t done that, it is REALLY loud. I was sure it must have blown some speakers, but it did not.
I’ve had the 88A since April of 2015 and later added the BM module. It’s on the latest firmware, and I leave the unit on all the time. In the first year I had it, the fuse blew twice, but no problems in th past two years. I hadn’t completed a new measurement since February of 2017. All was well.
Has anyone experienced anything like this before? Right now, I’m ready to write this unit off, but I was wondering if anyone had ideas about what went wrong.