Hi,
I finally took all your comments and made some test.
First, I haven't found anywhere to configure the 4 or 8ohms parameters in my reveiver.
What I did that made the biggest difference about sound quality, which is now really better than before, was to change the BASS parameter LPF for LFE from 80hz to 250hz.
I thought that this parameter was only used if I have a subwoofer, which I don't have, and never care about it. But putting that parameter to 250hz, I feel that I have a better overall range of sound.
Sound is still about at same level, but really better quality.
I'll probably try to reste everything to default parameter and start all over just in case something is stuck somewhere.
Thanks for all your suggestions
[img]https://1drv.ms/u/s!AqluTV8Jwvkmgr0EehHLm3xSaRzTFg?e=pdroey[/img]
