Sonic Grade: D
A Polydor Double LP mastered by Robert Ludwig.
The tonal balance is right on the money, but of course, because this is a compilation, it is made from copies of the master tapes, not real master tapes themselves, so it will always have that blurry, smeary, opaque, airless, sub-generation tape quality to the sound (not unlike most of the Heavy Vinyl we audition).