Is this Normal? Zeppelin IV LP sounds horrible

IV was not mastered well to begin with and I agree the Classic version is the best I've heard so far, which still leaves much to be desired.

It's a matter of the music meaning more than the sonics.

This is not an original Atlantic pressing; it is a reissue from 1977.

The original was released in 1971 as catalog number SD-7208.

I have both and neither is particularly noteworthy regarding sonics but the reissue is certainly the weaker of the two. It sounds muffled and compressed.

The best of the original Zep albums sonically speaking is Houses of the Holy.

I recently bought a copy of Houses of The Holy with a SMAS prefix.That would be a Capitol Record Club issue.On the back it's printed "sold under license from Atlantic Recording Corporation". The front cover is stickered with the Band name and title,plus track listing.I also of course have original atlantic pressing of this LP.A friend brought over "Mothership" on vinyl.Which struck me as clean,yet a bit lifeless.The Record club issue is much cleaner sounding then the original press.My friend was amazed that even he,a non audiophile,could clearly perceive the sonic differences.So getting back to Zep IV.I have The original (poor sonics} RCA record club{even worse} and just purchased a Capitol Record Club on eBay which sounds somewhere between the other two a bit closer to the Atlantic.I have I,II and IV on pre-recorded reel to reel.II is vastly better on reel,as is IV so I wonder why most vinyl on this is poor.LZ I ,i have not gotten around to playing on reel.These are to me only sonic curiousities,as I am no fan of the band.Odd that a band so popular would be so poorly represented sonically.Any comments on quality of their singles?Somewhere I think I have two of them,but God only knows where they are.

I have em all origs reissues classic 1-4 mothership is vastly superior in every facet dont waste your cash on crap get it n roc da house