Gary SteelTechnics has announced its stunning audiophile-grade SL-1300G turntable boasting innovative Delta Sigma Drive motor control.
This October Technics will release its new SL-1300G turntable, which boasts innovative technology in the form of the superb Delta Sigma Drive motor control.
By combining the sophisticated iron-coreless motor with the breakthrough Delta Sigma Drive technology, Technics has taken the next step towards the elimination of minute motor vibrations, improving gain in performance. In other words, the Delta Sigma Drive technology is capable of delivering the perfect sine wave signal for the iron-coreless motor. By using PWM signal generation, as employed in Technics’ full-digital amplifiers, motor vibrations are reduced to the minimum, resulting in a super smooth rotational accuracy.
This revolutionary technology was first used in the SL-1200GR2 turntable, but in the new SL-1300G, this technique is partnered with two mechanically superior factors, making the turntable close to sonic perfection. Firstly, the motor used in the SL-1300G is an iron-coreless double rotor/single stator type, the driving force of which is remarkably higher than the simpler version with only one rotor/stator, such as used in the GR2 turntable. Because of the cogging-free iron-coreless construction, the rotational smoothness of this higher motor version is truly excellent.
In addition, more research was done on how to further eliminate vibrations of the drive unit. Thus, the coil mounting circuit board of the motor now comes with a new reinforcement which leads to a further reduction of the mechanical vibrations caused during rotation.
The more powerful motor also enables the usage of a massive platter – another measure for further reducing mechanical vibrations during vinyl playback, resulting in an ultimately detailed, spatial and rhythmically breathtaking performance. This platter consists of three layers: aluminium die-cast builds the fundament for high rigidity. A top layer of 2mm-thick brass, thoroughly fixed to the die-cast platter, further eliminates vibrations. Finally, heavy-weight rubber underneath the platter dampens even the tiniest remaining vibrations, resulting in the pure tracking of every vinyl record for the highest signal precision. Because the heavier platter means higher mass inertia, the rotational accuracy of the SL-1300G is outstanding.
The superb qualities of the mechanical and electronic drive system are further supported by the new multi-stage silent power supply similar to the one used in the reference SL-1000R turntable. It is a combination of low-noise, high-speed power supply working at over 100kHz and a noise-cancelling circuit, cancelling remaining noise by injecting the reversed-phase current of the actual noise. By this method, a very low noise floor is achieved, enabling exceptional signal-to-noise ratio, and improving the overall signal performance.
The 2-layered bottom chassis is made of aluminium die-cast and BMC (Bulk Moulding Compound) is a rock-solid fundament which enables high resistance against vibrations. In the SL-1300G, the thickness of this aluminium die-cast bottom chassis has been increased for higher rigidity, thus reaching better vibration damping. A thoroughly designed rib structure has been added to the bottom side of the chassis plate between the motor and the tonearm, further keeping mechanical motor vibrations away from the tonearm to ensure an undisturbed tracking process leading to a sound image of the highest fidelity.
The high-sensitivity S-shaped aluminium tonearm with high-precision bearings enables an ultimately high initial motion sensitivity, making maximum use of the vibration-free chassis for precise reading of the information engraved in the vinyl grooves. Highly effective insulator feet shut out external vibrations for further tracking precision.
The overall design bears justice to a dedicated use of the SL-1300G as a true hi-fi turntable. The minimalistic design underlines the whole engineering concept: purity and straightforwardness.
+ The SL-1300G will be available from late October 2024 in either silver or black, and will retail for $5499.
