New for SME is the use of a low, "virtually liquid" durometer elastomer material for the suspension system and a round sub-chassis to reduce resonant planes. The new Model 10 tonearm is unique in that it uses the cast magnesium arm tube from the Series V, and the detachable headshell from the Series 309, making the Model 10 tonearm both high performance and versatile. The outboard power supply has 33 and 45 speeds. 12.5" diameter. 28 lbs., including arm.