The ΔΣ-Drive is a new system that applies Technics’ expertise in PWM signal processing. In addition to reducing high harmonics, the new drive suppresses vibrations from the motor for smoother, more accurate rotation, ensuring a rich reproduction of the music.
In 1970, Technics commercialized the world‘s first direct drive turntable, and the system took the world by storm. Unlike belt drive and other systems, direct drive systems rotate the motor at low speed and directly drive the platter, thus providing numerous advantages, such as the almost complete absence of degradation in S/N ratio due to motor vibration and deceleration mechanisms, as well as high reliability over a long period time because of not requiring parts replacement.
And 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. The SL-1210GR2 inherits the same design philosophy with the new development of a single-rotor, surface-facing, coreless direct drive motor, resulting in the elimination of cogging.
Low-Noise Switching Circuit
Use of a high-speed switching power supply ensures a stable supply capacity and less ripple and humming. Applying a switching power supply to a turntable eliminates the need for a large transformer and countermeasures for the ensuing mechanical vibrations.
A switching frequency of above 100 kHz limits the impact of noise on the music playback bandwidth.
Current Injection Active NoiseCancelling
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.
Two-layered Cabinet Construction
The SL-1210GR2 ensures high rigidity by using a body with a two-layered construction that solidly unifies the BMC and the aluminum die-cast chassis.
High-dampening Silicone Insulators
For the insulators supporting the body, the SL-1210GR2 uses special silicon rubber that ensures high vibration damping characteristics and long-term reliability.
High-Quality Terminals
The turntable uses gold-plated phono terminals for detachable cables, while metal shielding construction inside the case reduces the effects of external noise.
Specifications:
| General |
|
| Power Supply |
AC 120 V, 60 Hz |
| Power Consumption |
11 W, Approx. 0.3 W (OFF) |
| Dimensions (W x H x D) |
453 x 173 x 372 mm (17-27/32 × 6-13/16 × 14-21/32 inch) |
| Weight |
Approx. 11.5 kg (Approx. 25.35 lbs) |
| Accessories |
Turntable, Turntable sheet, Dust cover, EP record adaptor, Balance weight, Auxiliary weight, Cartridge spacer, Head shell, Overhang gauge, Screw set for cartridge, PHONO cable, PHONO earth lead, AC power supply cord, Owner's Manual |
| Operating Humidity Range |
35% to 80% RH (no condensation) |
| Terminals |
|
| Audio Output |
PHONO (Pin Jack) x 1, EARTH TERMINAL x 1 |
| Tonearm Section |
|
| Type |
Static Balance |
| Effective Length |
230 mm (9-1/16") |
| Overhang |
15 mm (19/32") |
| Tracking Error Angle |
Within 2° 32' (outer groove of 30 cm record), Within 0° 32' (inner groove of 30 cm record) |
| Offset Angle |
22° |
| Arm-height Adjustment Range |
0 - 6 mm |
| Stylus Pressure Adjustment Range |
0 - 4 g (Direct Reading) |
| Head Shell Weight |
Approx. 7.6 g |
| Applicable Cartridge Weight Range |
Without auxiliary weight: 5.6 - 12.0 g (14.3 - 20.7 g including head shell); With auxiliary weight: 10.0 - 16.4 g (18.7 - 25.1 g including head shell) |
| Cartridge Mounting Dimension |
12.7 mm (1/2") interval |
| Head Shell Terminal Lug |
1.2 mmφ 4-pin terminal lug |
| Turntable Section |
|
| Type |
Direct Drive Turntable |
| Motor |
Brushless DC Motor |
| Turntable Speeds |
33-1/3, 45 and 78 r/min |
| Adjust Range |
±8 %, ±16 % |
| Starting Torque |
2.2 kg-cm |
| Build-up Characteristics |
0.7 s from Standstill to 33-1/3 r/min |
| Braking System |
Electronic Brake |
| Wow And Flutter |
0.025 % W.R.M.S. |
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