Marantz av8802a volume issue

Had an unpleasant experience with the kids today. As we were queuing up Despicable Me we were all blasted when the amplifiers switched in and the volume was @ 97!!!   I quickly muted and turned down the volume and rechecked that my settings are to have the volume set to 37 upon startup.  Everyone’s ears were ringing and I still have to check nothing was damaged by that brief but extremely loud experience. 

Has as anyone else ever run into this and any thoughts on how to effectively check that the speakers weren’t damaged (not to mention our ears which still feel off several hours later)?  I’m definitely letting marantz know about this. 

connected equipment
Two Lexicon RX-7 AMPLIFIERS
 Bi-amped: revel Ultima studio 2 and voice 2
Single amped: revel Ultima gem 2 and  (4) Revel C583
Two JL Audio Fathom F212v2 subwoofers.