I don't listen to my system with a SPL meter, so why should I use one to tune it? Why not trust your ears here as much as in other cases?
Brian: (Let me try to explain it to you.) Because, matching volume levels is a quantitative determination most easily done with an electronic measuring device. If you can design and build a $40 device which will simply tell me qualitatively, which unit I will like best and by how much, it would save me alot of time by not having to carefully listen to a bunch of different components.
Better yet, once you determine what easily measurable quantitative data can define the sound that I prefer qualitatively, then all I'd need to do is read those manufacturer supplied data and determine which unit I'd like best without even listening or measuring them at all.
Then again, this would turn a hobby into simply a buying club.

[This message has been edited by merc (edited August 13, 2002).]