SME Series 300 Model 309

Description

• Detachable, interchangeable single die-cast magnesium housing without altering the cartridge or wiring.
• The new design's clamping arrangement ensures a rigid connection with the tone arm.
• The ultra-rigid two-piece arm reflects sophisticated metalworking techniques.
• The constrained inner layer dampens minute residual vibrations, making the arm acoustically inert.
• Stainless steel transverse, ground and threaded shaft. Carried in a solid 10 mm yoke. Precision ball races. Record mid-level spindle to minimise warp-wow.
• The exclusive assembly provides high rigidity and allows the bearings to be critically adjusted beforehand. The tonearm is installed.
• Vertical, ground and threaded stainless steel shaft, ground, with an integral 16 mm diameter flange for coupling the shaft and the yoke.
• 23 mm diameter heat-treated, ground and polished steel pillar, featuring two 17 mm precision ball tracks, widely spaced to resist tilting.
• The anti-skate control works via tension, spring and filament. The dial corresponds to VTF and has a positive OFF position.
• The descent/ascent control provides a positive movement and smooth action. The lifting height can be adjusted.
• The double-locking base provides motion control with high rigidity.
• Tungsten alloy counterweight carried two-point damped suspension. Ultra-low inertia. The design helps with warp mounting.
• The weighted suspended casing corrects the centre of gravity and provides a non-reflective arm.
• The rotating and damped output socket minimises vibration transmission during subchassis use.
• Reference lines on the arm make VTA easier.
• Fine adjustment of horizontal tracking angle (HTA).
• New high-precision HTA alignment conveyor set design.
• Cartridge wires and LCOFC litz internal wiring.
• Balanced LCOFC audio cable with gold-plated phono plugs.

DIMENSIONS 309

A – Distance from pivot to stylus: 232.32

B – Distance from the pivot to the centre of the turntable: 215,35

C – Cartridge fixing centres: 12.70

D – Compensation angle: 23,204°

E – Linear displacement: 91,54

F – Cantilever 16.98 maximum: 87.90

G – Height above mounting surface min. 56.40 H – Height of the record surface above the mounting surface max. 55.90 min 24.40 J – Depth below mounting surface 56.75 K – Radial clearance for counterweight 73.0 L – Clearance between cabinet lid and record surface, assuming cartridge height is 17.0 37.0