Originally Posted by evdberg
Originally Posted by George Mills
You lose apodizing/upsampling of HD621 if you pass bitstream anyway. Most go to great lengths to decode externally so that can do stuff like that.
The few people with a HD621 that have commented on this forum on the apodizing upsample capablility of the HD621 said that they did not hear any difference. I think it is time that HD621 owners seriously examine what the impact of this filter is. Testing could be very simple. Just make sure upsampling is enabled in the G68 or 861, and listen to the same CD with upsampling enabled and disabled in the HD621. I am very interested in the result!

FWIW, I am one who has commented and think that it does improve the sound for my music server as opposed to going directly into my G68. I have not, however, done rigorous A/B testing and, to be honest, probably won't get around to it. It's impressionistic but it sounds better to me so I'm going to continue to run the music server through the HD621. I leave it to other people to debate the issue.

MD600(2x2TB); iPad Pro
LR. 818v3, 8000SE
HT. 861v8+ID41,HD621; BW 2x802D,HTM1D,4x804S;SVS sub; Mac 5 MC501s; RGP 600Pro, JVC X950; Radiance Pro; Oppo 203
FR. G65, DSP3200-3300 DSW, HD621; Mac MC152; Oppo 103, PDP TCP65VT60, Radiance 2124; RGP1200C
4. G65, DSP3200-3300,HD621; OPPO 83, Radiance XE PDP
5. 818v3; Prime HP Amp; HD800