All this RL talk sent me to my small stack of Zeppelin records to see what's there, and turns out I have a 1972 German reissue with RL in the runout of Side 1. (
Led Zeppelin - Led Zeppelin II. Odd that there aren't any for-sale listings for this pressing, nor is there any sales data.)
Gave it a listen and OMG, it's dynamic as hell. What's really striking is that the fucking drum kit, in its entirety, is completely in the room, yet somehow this doesn't dominate the music as the guitars, bass, vocal, and flow of sound across the soundstage all are represented very well. The first couple of notes of Whole Lotta Love seemed like they might be a bit hot, but they're not, just very crisp. No sibilance, nothing that's too much. It's grand.
My only point of comparison is a 1973 US reissue (
Led Zeppelin - Led Zeppelin II). Gave this a listen and I can't even believe it's from the same recording. The drum kit is limited to this very tiny space in the upper right corner of the soundstage and has no real impact at all. Not nearly the dynamics of the German pressing, not as crisp, etc. Also kind of interesting is the records themselves
look very different. The below photo shows the German (RL) vinyl on the left, US on the right. They really look like they were cut differently (and it's not just a matter of the angle of the light, as it might appear from the photos).
As for Side 2, unfortunately, both sound (and look) very similar, neither being nearly as dynamic as Side 1 of the German RL pressing. They just sound average.
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