This Aperion Sound Level Meter is included for FREE with any 5.1, 6.1, or 7.1 channel speaker system

Our ASM-1 Sound Level Meter, combined with the test tones emitted from your receiver or an audio test disc, allows you to measure the sound level of each speaker within your system. Once measured, you can calibrate them to within 1 dB of each other. The resulting improvements in side-to-side and front-to-back acoustics can be astonishing. This one-time adjustment often makes the difference between just hearing your music, and being immersed in it, and given the choice, we always opt for “immersion.” The ASM-1 is affordable and easy to use. It comes with instructions and even the required 9-volt battery. In addition, our Home Theater Gurus stand ready to make the process fun and effective by answering all of your questions.
 
If a tree falling in the forest DOES make a sound, our Sound Pressure Level Meter will tell you how loud it is to the nearest Decibel. Use the Aperion Sound Level Meter to optimize your home theater or stereo system to maximize its full potential.