Construction details: Resonance optimised shape, belt drive. Speed change: 33 1/3 and 45 rpm. (78 rpm optional) Motor drive: Separately housed synchronous motor in a massive stainless steel case Main bearing: Polished and hardened steel, polished bearing housing, sintered bronze, inverted Platter material: GS-PMMA / acrylic, Surface CNC-precision milled Platter height: 2.8 inch / 70 mm Speed accuracy (measured): ±0,1 % Signal to noise ratio: 83 dB Total weight: Approx. 23 kg Dimensions (W/D/H in inches): 18.5 x 15.3 x 6.3 Dimensions (W/D/H in mm): 470 x 390 x 160 Manufacturers guarantee*: 5 Years