My big ONKYO 90s that had cost me 5 times more expensive at the time, which supplied the Polk Audio speakers, an active boomer Yamaha, and a center speaker very good (I forget the brand). This motley equipment was particularly difficult to develop judgmental, especially in setting phase to the screen on the TV, the sound did not pass! It is better for much cheaper, testing of pregnant is automatic as soon as you plug the microphone measurement, efficient and fast. The results are bluffing. The downside inherent in the system, the setting only applies to the specific location where you placed the measurement microphone. Our salons are not auditoriums and reverberations walls and volumes do the rest. I have not yet tested the tuner function (in the utility did I?) But I do not doubt the outcome. Nice To Meet You! change. Who wants a really big ONKYO?