speaker measurement

[steve s]

i'm going to measure the frequency responce of my speakers again, The last time i connected my sig gen to the amp and measured from the customary 1 metre and then the listening position with my sound meter..

i had a reading through the frequency range and measurements through it in db's

my question is at what volume or db's should the readings be taken,
to compare with the tests done in the mag..

cheers steve