Speaker placement question-

From the center of the driver in some cases; this is the way the Cardas site does it. From the edge of the speaker in others. In other words, there is no way to tell unless the reviewer states which he is using.

It doesn't matter where the measurements are taken from. Where your speakers will sound best is totally room and system dependant.

Adding to Rrog above, also depends if rear-ported, front-ported or sealed.

If you have a question about a particular speaker from a particular review why not e-mail the reviewer and ask him how the measurements were taken?

Frank

"If you have a question about a particular speaker from a particular review why not e-mail the reviewer and ask him how the measurements were taken?"

Why try to duplicate what a reviewer has done in his room? Your room will most likely have totally different characteristics. Many things come into play such as room dimensions, ceiling height, furnishings, windows, which wall the speakers are on, sonic signature of electronics, etc. There is also the issue of personal taste. Reviewers have a tendency towards hiper detailed sound (sins-of-addition) to further their ability to review other equipment which they will insert into their system. Do you want to listen to music or do you want your system to be a reviewing tool? Set your system up to your taste not somebody else's.