Technics SL-1210GR2BK Grand Class GR Turntable
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Introducing the SL-1210GR2BK Grand Class GR Turntable
New Motor-Drive System, ΔΣ-Drive (Delta Sigma Drive)
Utilising Technics' advanced PWM signal processing knowledge, the new ΔΣ-Drive system reduces high harmonics and suppresses motor vibrations, creating smoother, more accurate turntable rotation and providing an enriched musical reproduction.
The First Stage of The New Generation of Technics’ Direct Drive Turntables
Since inventing the world’s first direct drive turntable, Technics has continued to work to improve sound quality. It has now developed the ΔΣ-Drive, which suppresses minute vibrations from the motor and improves the electromagnetic conversion accuracy of the cartridge.
Coreless Direct Drive Motor Achieving Stable Rotation
In 1970, Technics revolutionised the turntable market with the introduction of the world's first direct drive system. Unlike other models, this motor operates at low speed and directly powers the platter, creating many advantages like reduced noise due to motor vibration and longer durability since no replacements are needed.
In 2016, Technics developed the twin-rotor, surface-facing, coreless direct drive motor with rotor magnets placed on both sides, thereby eliminating the rotation irregularity of the motor, referred to as "cogging," which was a unique issue for direct drive systems. This motor was adopted for the SL-1200G, which once again drew a significant response in the hi-fi market.
This turntable is built upon the same principles, featuring a new, single-rotor, direct-drive motor that faces the surface, with a coreless design eliminating cogging.
Multi-Stage Silent Power Supply
Low-Noise Switching Circuit. A high-speed switching power supply provides a dependable electricity source with reduced noise and hum. A switching power supply for turntables eliminates the need for massive transformers and reduces resonance vibrations. With a switching frequency higher than 100 kHz, sound quality is kept free from noise interference.
Current Injection Active Noise Cancelling
This technology combines a noise detection device with an error amplifier. It detects residual noise in the power supply and applies an inverse phase current to remove noise components. It removes low frequency noise more effectively than a regulator to ensure a more ideal power supply.
Pursuing Rigidity and Vibration Damping Characteristics
The platter achieves high rigidity and vibration damping characteristics by using a two-layer construction with deadening rubber applied to the entire rear surface of the aluminium die-cast to eliminate the unnecessary resonance that is otherwise relayed to the record, thereby producing clear sound.
To increase the inertial mass and reduce vibration, the shape of the aluminium die-cast portion was optimised by simulation. At 2.5 kg (including the rubber mat), the SL-1210GR2BK platter is 0.8 kg heavier than that of the previous SL-1200MK5. Also, the back surface of the platter has strengthening ribs added to improve rigidity. Increasing the surface area of contact with the deadening rubber achieves damping characteristics that are more than twice those of the SL-1200MK5.
Tonearm Achieving High Initial-Motion Sensitivity
The tonearm tracks the rotation of the record and enables reading with high precision, and the tonearm inherited by Technics is the traditionally used static-balance universal S-shaped tonearm, employing an aluminum pipe with excellent light weight and rigidity for the material of the tonearm pipe.
With its gimbal suspension construction, the tonearm bearing section uses a cut-processed housing that employs high-precision bearings, as in the SL-1200G and SL-1200GR. The high initial-motion sensitivity of 5 mg or less is achieved through manual assembly and adjustment by skilled Japanese artisans. This enables the grooves etched into the records to be accurately traced.
In addition, one type of auxiliary weight comes included, and the cartridge can be swapped with a variety of other cartridges to match the music genre or feeling. (Applicable cartridge weight when using the supplied auxiliary weight: 10 - 16.4 g (not including the supplied head shell))
Product Features
- Coreless direct drive motor achieving stable rotation
- ΔΣ-Drive suppresses vibrations from the motor for smoother, more accurate rotation
- Low-noise, low-voltage power circuit and a switching power supply
- Two-layer platter with high rigidity and vibration damping
- Tonearm achieving high initial-motion sensitivity
- High-rigidity body and high-damping silicon insulators for smooth sound and isolation from various vibrations
*This information has been obtained from Manufacturers website. We advise that Features, Specifications & Price are subject change without notice.
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