Audiophilepure

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“The raw frequency variations are well in excess of previous measurements but more troubling is the lowpass filtered results (green line), which compensates for test record eccentricities. It should be a relatively straight line.”

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” The ability of a turntable to move the music along rhythmically has somewhat to do with speed consistency but another factor is it’s ability to handle low frequencies without getting them “mixed up”. The amount of energy, especially low frequency energy produced at the stylus/groove interface is great, despite RIAA bass roll-off. That energy travels both into the tone arm and into the record, platter and plinth.”