I have long hesitated whether I my rd. 11 year old set of Denon 1705 corresponding to 5.1 boxes swap. Although I was pleased, but somehow had the feeling that especially the sound goes. More. In the first step exchanged the boxes against Teufel Columa MK300 and behold, a significant positive effect: the sound is much clearer, less distorted and the subwoofer sounds complacent, not booming like that. Is there more? Yes, it works, and how !! After replacing the old Denon towards the AVR2100 I am very satisfied. I hear details that I have not been perceived so: In music much clearer instrumentation and movies much more effects, especially from the rear speakers. Here is the automatic calibration of the 2100 wonders managed. I'm very satisfied that new AVR but are tonally so much better, at least for my amateur ears. Especially at moderate listening levels super effects and great sound. I no longer have to turn up the volume as much to feel sound atmosphere. And when I hear loud, no distortion hurts more in the ears. The other technique is also fun. Internet integration including radio always works, mostly Bluetooth, iPod with USB often. So not perfect, but definitely an improvement. The app I use very much to easy to adjust the sound modes. As an additional gimmick nothing quite nice. The 7 HDMI inputs and 2 outputs, I find very handy. Another detail Tip: you can turn some sound channels separately: is with me, that I see football without sound on the television and can simultaneously listen to the radio or CD. At least for me very convenient.
