Just a quote from the 8 year old Stereophile review of the DSP8000:

Those familiar with my loudspeaker measurements will note that one thing I have not shown is a similar waterfall plot calculated from the output of an accelerometer fastened to the Meridian's enclosure walls. The reason is that there was nothing to show. I could find no resonant modes, either in the woofer bin walls or in the head unit!—John Atkinson

G68J, HD621, ...