The better pressings have the kind of Tubey Magical, big-bottomed, punchy, spacious sound that we’ve come to expect from Larry Levine‘s engineering for A&M. If you have any Hot Stamper pressings of Sergio Mendes & Brasil ’66’s albums, then you know exactly the kind of sound we’re talking about.
Top end extension is critical to the sound of the best copies. Lots of old records (and new ones) have no real top end; consequently, the studio or stage will be missing much of its natural air and space, and instruments will lack the full complement of harmonic information.
In addition, when the top end is lacking, the upper midrange and high frequencies get jammed together — the highs can’t extend up and away from the upper mids.
This causes a number of much-too-common problems that we hear in the upper midrange of many of the records we play: congestion, hardness, harshness, and squawk.
Painstaking Vertical Tracking Angle adjustment is absolutely critical if you want your records to play with the least amount of these problems, a subject we discuss in the Commentary section of the site at length.
Full-bodied sound is especially critical to the horns.
Any blare, leanness or squawk ruins at least some of the fun, certainly at the louder levels the record should be playing at.
The frequency extremes (on the best copies) are not boosted in any way. When you play this record quietly, the bottom and top will disappear (due to the way the ear handles quieter sounds as described by the Fletcher-Munson curve).
Most records (like most audiophile stereos) are designed to sound correct at moderate levels. Not this album. It wants you to turn it up. Then, and only then, will everything sound completely right musically and tonally from top to bottom.