The Space in the Middle
Allow us to present a key finding we discovered while playing so many of these LPs. I’m sure you’ve noticed this effect on some of your favorite recordings as well. In this case it’s the one quality that allowed some copies to soar while others were left grounded.
About halfway through the session I noticed that the copies with the most top end extension and the deepest bass had another quality which was even more involving: they left more SPACE in the middle for every other element of the mix to occupy.
There was no CROWDING in other words. This may be the result of less compression in the mastering phase; compression tends to richen up the sound, but it has an unfortunate tendency to jam it all together in the middle as well.
Or it just may be higher resolution, so that the space around all the elements is clearly reproduced.
Or it may be equalization, so that the higher parts of the bass stay down and the lower parts of the highs stay up, keeping both from seeping into the midrange.
Who knows what it is? One thing I can tell you is this: it sure is easy to HEAR it. Big as life, with spaciousness and three-dimensionality to beat the band, the sound on this “open middle” copy simply was in a league of its own.
Perhaps you know that sound from your own favorite recordings. It’s the kind of thing that turns a good pop album into a Demo Disc.