En ny generasjon Technics
Siden oppfinnelsen av direktedrevne platespillere, har Technics jobbet aktivt med å forbedre lydkvaliteten på disse. De har nå utviklet ΔΣ-Drive, som kverker små vibrasjoner fra motoren og forbedrer den elektromagnetiske konverteringen. I første fase resulterer dette i SL-1200GR2.
ΔΣ-Drive (Delta Sigma Drive)
ΔΣ-Drive er et nyutviklet system som bruker Technics’ ekspertise innen PWM-signalbehandling. Dette reduserer vibrasjoner fra motoren, noe som gir jevnere, mer nøyaktig rotasjon, og derav en rik gjengivelse av musikken.
Pursuing Rigidity and VibrationDamping 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 aluminum 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 aluminum die-cast portion was optimized by simulation. At 2.5 kg (including the rubber mat), the SL-1210GR2 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.
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.
