mystery muffled mids


I have a year-old setup I enjoy very much. B&W D3 805s and Hegel H590. Sound is really great. Imagining fantastic. every second with it is pleasure until I try to play classic rock. Anything by Led Zeppelin sounds like someone has smushed the sound and it lost the mid range, imagining disappears. I tried playing louder but live with too many people around to be able to do that constantly. And it did not improve anything noticably. 
I normally stream from Tidal via Audirvana. Anything by Bill Frisell, for instance, sounds phenomenal. You feel you can grab the instrument from the air. I mention this since he uses similar instruments to Zeppelin. Bowie's stuff sounds awful, as does Queen. I know they should sound better. Kind of Blue is fantastic. Gaucho, Sea Change, Elephunk, Wildfloflowers, Know what I mean? -- all great. To a friend, I said that this means bad recordings sound bad. The friend said that's not it. what do you say? How can I improve the sound? thank you in advance.
petar3

Showing 2 responses by mofojo

The Stereophile speaker measurements show about a 5db dip throughout a lot of the mid range. That could be some of it. 
Also I like the idea of doing a Quobuz trial. 
@petar3,

I meant no disrespect with my comment. It was just based on a lot of classic rock is pretty midrange centric. Not a lot of lows or high highs so if there is a dip in that range I was thinking it may sound a little muted. To be honest though I’ve only ever gotten Zepplin to sound descent, not great.