Sure, to each their own. I personally prefer to have HDR switched off - the sound quality is perfectly fine without it imo. Been running it through my headphones and studio monitors, and it sounds great. 

High Dynamic Range option is meant to increase loudness, not necessarily enhance sound quality. I also noticed that it muddies up the sound, so I keep it in the OFF setting, and increase volume through the amplifier instead.    Here's a quick run-down of what HDR audio does. ...