DBs and disturbing the neighbors

[GAWD]

Alright...got my hands on my first sPL tonight and was messing around with it.

I played Terminator Salvation through my 7.1 system. Paradigm Monitor 9s with a Velodyne 12" sub.

Watched one of the most action packed scenes in the movie motorcycle terminator scene with the tow truck. Now at a comfortable listening level...enjoyable actually my system clocked in at 90dbs at the highest for a split second. The rest of the time it hovered around 75-83dbs.

I'm semi detached and the wall that my speakers are placed against is attached to my neighbor's wall. Here's the question....

at that volume do you think sound would travel through my wall, insulation, then concrete wall, then his insulation and then his wall...loud enough for him to hear me?

I've asked him 20 times if he hears anything but says no. I don't know if he's saying that to be a good neighbor but I'm always riding the volume when watching movies thinking OH MAN they must have heard that loud and clear.

At times my wife hears the glasses shake in some movies due to explosions and such. Is 90db really loud enough to get through my house and his?