I find my SPL meter (with the correction table) and a sweep generator (run on each channel independently and then on both) gives me the best results.
What's the correction table?
Avia is a home theater configuration DVD. And Radioshack sells the SPL meters for about $40 or so. If you search around on hre there's a number of threads that discuss Avia vs. other configuration DVDs (they have various test tones and video calibration tools.)
I actually don't have a DVD player (besides my computer, which might not be very good quality), so I'll look around those threads to see what else is out there. But I'm hesitant to shell out more money on audio stuff...
Thanks!
