For me its the first or very early LP's of: Allman Brothers - "Allman Joys" "Idyllwild South" Santana - "Santana" 200 g reissue Emerson Lake and Palmer - "Emerson Lake and Palmer" and, Beethoven - "Piano Concerto No. 4 in G Major" Rudolph Serkin/Ozawa/BSO
Hey @slaw Yeah, I tested before and after on an album > SpinClean > US. There was a clear improvement with each cleaning with the US yielding an improvement like a new power cord etc. The new bearing is a revelation taking the 401 to a new level.
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