Having had a similar Pioneer at one time I wouldn't expect a huge difference let alone a "sound signature". I've yet to find one of those in all my gear. It is nice gear as long as you're say still using 1080p sets and no ceiling speakers for Atmos...like me
, and I couldn't tell you how good it is with 4k stuff as a result, but heck as long as it meets your needs somehow.....it's a good deal if you've got the itch. You have a 3.1 setup or have amps for surrounds?
ps You might get a bit clearer at higher volume with the bit extra on the amp side....