Hi guys, So, I completely restored my Denon 4311 to factory settings and decided to NOT do the automatic set up with Audyssey just to see what kind of sound I get and sound I get is pretty good. It seems like before, after running Audyssey, it would tone down the highs due to my room bouncy acoustics, thus possibly harming the sound. Question is .... am I really missing anything if I opt out of auto set up??? Other than Dynamic Volume control. The only things I changed manually were... Sub frequency 120 Crossover 90 Speakers set to small Speaker distance measured manually Channel volume ... due to no SPL meter had to do it by ear. Have any of you opted out of automatic calibration systems that came with your receivers???