I found it 102 db.
guess I discovered the reason people say they sound like music is comming through a tube,I removed the large woofer only to find no acustic wool,fiberglass or polly fill.I can't imagine a large ported 15" speaker in an echo chamber doing 300w.scarry!might be an improvement for Britney Spears though (loud with lots of echo) dose a very good job of hideing a lousy singers lack of talant.I will have to make some changes to these speakers. 1st I will have to seperate and enclose the mids and tweet from the woofer as they should have a seprate chamber ,then add pounds of acustic wool,and foam line the inside cabs,change caps to Solons, and refoam,and fix the cabnet where its been dropped.Then figure out what I'm going to do with these monsters.I got them for the newly rebuilt spec seprates 1&2 and thought they might be a good 1970's match for a vintage system for the spare bed room.I have a crazy neibor that complains when I run over 10 watts per channel,in a liveing room with doul pain windows, dynamatted walls then covered with fabric covered foam sound treatments ,carpet has been pulled up and foam shot in the floors and the commen walls are doubble sheet roched with 6" in between from builder,most of the time she complains the police have come to the door and only the tv is on or I'm not even home and another neibor tells me about it.GO Figure.So I figure 2X 300watts through bass heavy speakers pointed at her bed room wall once a week awt to be fun,mabey the theam from 2001 a space oddicy should be just the right song.