These precision pick-up arms embody well tried SME principles and aresuited to a broad range of cartridges including those of medium and low compliance. Series M2-9 is the standard arm having a pivot-stylus dimension of233.2 mm and will therefore be the one most frequently used.Typical effective mass 9.5 grams. Series M2-10 is identical except that the pivot-stylus dimension is 239.3 mm a difference that suits the layout of some decks. Typical effective mass 9.6 grams. Series M2-12 has a pivot-stylus dimension of 308.8 mm. Distortion caused by lateral tracking error is at least 25% less than possible with a nine inch arm. However effective mass will be typically 12.0 grams. Also, a turntable designed for 12-inch arms must be selected.
The internally damped tonearm of highly polished stainless steel provides sparkling uncoloured reproduction. A unique single element balance system caters for cartridges weighing 5 to 12 grams. After balancing tracking force is applied by forward movement of the weight ensuring the lowest system inertia. The weight moves on a precision screw thread with backlash eliminator allowing exact setting of vertical tracking force.
The M2 shell is pressure die-cast in magnesium for lightness and rigidity. A collet of ingenious design affords one-piece rigidity and allows azimuthcorrection to be made before final tightening.
A fluid damper FD-M2 is an optional accessory. The normal slow passage of the arm across the record is unaffected but influences which would tend to produce over-rapidmotion are resisted by the flow characteristic of the fluid. It's use is recommended with very low compliance cartridges or where there is a problem with external vibration such as a springing floor.