Details The SL-1000RE-S Reference Class Turntable system features a double coil coreless direct drive motor and heavyweight platter for stable rotation. Featuring a separate control unit and high-sensitivity base mounted tonearm on an extremely stable, rigid cabinet. Coreless Direct Drive Motor The motor that forms the heart of the direct drive turntable is based on the coreless direct drive motor that was developed for the SL-1200G launched in 2016, and further improved. The double coil twin rotor-type coreless direct drive motor that was newly developed for this purpose had coils on both sides for 12-pole, 18-coil drive, with high enough torque to drive the heavyweight-class platter (approximately 7.9-kg). Offsetting the coils on both sides 60 degrees improved the rigidity of the substrate, suppressing fine vibrations and reducing self-inductance. These improvements achieved stable rotation of 0.015% wow and flutter or less, which is considered to be the measurement limit. Also, the thrust bearings supporting the heavyweight-class platter use a special engineering plastic to provide both high rigidity and reliability. Suppressing Unwanted Motor Vibration The motor that was developed for the SL-1200G served as the platform for the direct drive motor. The double coil, reinforced thrust bearings, and a chassis with increased rigidity achieved a stabilised motor with low centre of gravity. By positioning two stainless steel weights with high rigidity and high specific gravity at the bottom of the chassis, the rigidity and low centre of gravity are maintained. These thorough measures to prevent unwanted vibration help to achieve overwhelming rotary precision and improve S/N. Heavyweight-class Turntable Platter The turntable platter positions tungsten weights, which have an extremely high specific weight and are difficult to process, on the outer periphery of a 10-mm-thick brass weight. The brass weight is laminated onto the aluminium die-cast, giving the platter a total weight of approximately 7.9 kg and an inertial mass of approximately 1 ton･cm. A deadening rubber for eliminating unwanted vibration is also attached to the rear surface to form a 3-layer construction and achieve high rigidity and excellent vibration damping characteristics. Minute Adjustment and Indication of Rotations This turntable supports not only LP (33 1/3 rpm) and EP (45 rpm) analogue records, but also SP (78 rpm). Rotation (rpm) can also be set down to two decimal places (maximum ±16%) from the control unit. The OLED display is also capable of displaying rotation with accuracy down to two decimal places, so the user can both hear and see extremely precise rotation. High-sensitivity Tonearm To enable the tonearm to precisely track the record's rotation, Technics has traditionally used the static balance, S-type universal tonearm with a lightweight, high damping magnesium tonearm pipe. The gimbal suspension construction tonearm uses high-precision bearings. Highly skilled Japanese craftsmen handle all assembly and adjustment to achieve a high initial-motion sensitivity to precisely trace the grooves cut into the records. OFC is used for internal wiring, so the music signal relayed from the cartridge is not dampened and the musical energy cut into the record is not lost, thereby producing highly vivid sounds. Tonearm Base The tonearm base, to which the tonearm is mounted, is strongly integrated with the turntable part. Comparing the turntable base part with the tonearm mounting construction, the relationship of the tonearm bearings, turntable bearings, and needle position is always constant, providing a structure in which the vibration caused by the rigidity of the turntable base materials has minimal effect, and the tonearm performance is maximized. An optional tonearm base can also be purchased, enabling, in addition to the standard tonearm, an existing short or long-type tonearm from SME or Ortofon to be mounted (up to three including the standard tonearm). Specifications Turntable section Drive Method Direct Drive Motor Brushless DC motor Turntable Speeds 33 1/3, 45, 78 rpm Adjust Range ±16 % Starting Torque 0.39 N・m / 4.0 kg･cm Wow And Flutter 0.015 % W.R.M.S. Turntable Platter Brass and aluminium diecast combinedDiameter : 323 mmWeight : Approx. 7.9 kg (including turntable mat) Tonearm Section Type Universal Static Balance Effective Length From the tonearm pivot to the stylus : 254mmFrom the tonearm pivot to the spindle : 239mm Overhang 15 mm Tracking Error Angle Within 1° 48' (at the outer groove of 30 cm (12") record)Within 0° 30' (at the inner groove of 30 cm (12") record) Offset Angle 21° Arm Height Adjustment Range 0 - 15 mm Stylus Pressure Adjustment Range 0 - 4 g (Direct Reading) Applicable Cartridge Weight Range (including Headshell) 15.9 - 19.7 g (without auxiliary weight)18.8 - 23.6 g (with small auxiliary weight)22.5 - 26.3 g (with middle auxiliary weight)26.0 - 31.0 g (with large auxiliary weight) Terminals Audio Output PHONO (Din Jack) x 1 *Straight Type Cable Only General Power Supply AC 110 - 240 V, 50 / 60 Hz Power Consumption 10 WApprox. 0.05 W (Standby) Dimensions (W x H x D) Main Unit 531 x 188 x 399 mmControl Unit 110 x 84 x 350 mm Weight Main Unit Approx. 40.2 kgControl Unit Approx. 2.1 kg Operating Temperature Range 0° to +40° Operating Humidity Range 35 % to 80 % RH (no condensation) Accessories Turntable, Turntable mat, EP record adaptor, Balance weight, Auxiliary weight(Small)(Middle)(Large), Overhang gauge, Screw set for turntable, Detachable handle, Hex wrench, Insulator attachment, Dust cover, AC main leads, Owner's manual
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