I don't recall him saying anything about measuring with different filter settings. He did report his findings on the THD+N vs frequency, that the 5200 was higher, and 20 dB higher for the front L\/R XLR input, see post#119 in the link below for details (but you are probably aware of that already).\n\nhttps:\/\/forums.audioholics.com\/forums\/threads\/yamaha-cx-a5200-and-mx-a5200.112380\/page-6#post-1326704\n\nThose artifacts due to the use of slow roll off filters should not be audible anyway as they are originated in the ultrasonic band so for normal music and movie contents, it would most likely not be an issue at all. If that bothers you, then just the sharp roll off, we aren't bats afterall.:D\nTHD was about 0.01% with 4V and 0.05% with 8V. \n\nTHD was 0.005% with 2V.