Calibrate your speaker system with Aperion's brand new SPL meters! Our ASM-1 SPL meter has been tested and benchmarked against the famous Radio Shack version. This one measures more evenly across the full frequency range. It's a steal at $29. Check it out here:

http://www.aperionaudio.com/products/product-detail.aspx?id=96

Looks good. So good, I bought one.

Now I just need to buy more of your speakers.