I looked at 3 Denon AVRs, with having the same audio specs.  I currently have, their 5 year old S-960, and looking at their X1700 and X2800, all with the same audio spec.  With having the same audio specs, does that mean the units will all produce the same sound output?  Meaning, will the bass, mids, and highs, produce the same sounds through my speakers?  Is there something that the audio could be different in each AVR.?