Direct Drive Turntable System
Coreless Direct Drive Motor
Conventional analogue turntables have problems with degradation in sound quality caused by factors such as minute speed vibration during rotation and rotation irregularity called “cogging.” In the SL-1200G, the use of a newly developed coreless direct-drive motor with no iron core eliminates cogging. Also, the twin-rotor construction reduces the bearing load while maintaining high torque and also reduces minute vibration during rotation. These factors enable reproduction of the warm, exquisitely detailed sound etched on analogue records.
High-precision Motor Control Technology
The application of motor control technology developed for Blu-ray devices and switching the drive mode depending on the operational status of the motor achieve a high-starting torque and high-speed stability.
Three-layered Turntable Platter
The turntable has a three-layered construction with a rigidly combined brass and aluminium die-cast platter. With a deadening rubber covering its entire rear surface to eliminate unnecessary resonance, thereby achieving high rigidity and vibration damping. This delivers smooth rotational stability and inertial mass surpassing the SP-10MK2, the direct-drive turntable standard used by broadcast stations worldwide, as well as having more than twice the inertial mass of the SL-1200MK5.
High-level Balance Adjustment
When the weight distribution of the turntable is uneven, excess vibration or noise occurs during rotation, which causes degradation in sound quality. Therefore, the balance of the turntable is adjusted at the factory by using specialized high-precision balance adjustment equipment for each and every item after the turntable is assembled. Turntables that have undergone adjustment are labelled with a sticker reading “BALANCED” to indicate that adjustment has been done.
“BALANCED” sticker indicating balance adjustment completed
Exhaustive measurement performed to examine whether the surface deflection of the platter is within limits
The tonearm employs lightweight magnesium which has a high damping effect, with cold drawing improving the characteristics of the material and achieving the high-precision required. In addition, high initial-motion sensitivity is attained by employing the traditional Technics gimbal suspension construction with horizontal rotation axis and the vertical rotation axis intersecting at a single central point, as well as high-precision bearings using a cut-processed housing.
Supplied auxiliary weights support a wide variety of cartridges
Four-layered Cabinet Construction
A hairline-processed, 10-mm-thick top panel of immaculate aluminium has been added to the previous three-layered construction of aluminium die-cast, BMC, and heavyweight-class rubber on the SL-1200MK5. This four-layered construction combines high rigidity with a high-quality finish and feel.
The use of brass-milled, gold-plated phono terminals and ground terminals prevent degradation in sound quality while enabling the easy attaching and detaching of cables. Also the use of metal shielding construction inside the case reduces the effects of external noise.
Brass-milled PHONO Output Terminals
AC Input Terminals (Detectable Input)
Direct Drive Turntable System
Direct Drive Manual Turntable
33-1/3, 45 and 78 rpm
±8 %, ±16 %
0.7 s. from Standstill to 33-1/3 rpm
Wow And Flutter
0.025 % W.R.M.S. (JIS C5521)
78 dB (IEC 98A weighted)
Brass and aluminium die-cast combined
Weight: Approx. 3.6 kg (including a rubber mat)
Universal Static Balance
Tracking Error Angle
Within 2° 32′(at the outer groove of 30 cm (12″”) record)
Within 0° 32′(at the inner groove of 30 cm (12″”) 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 the auxiliary weight)
5.6 to 12.0 g
14.3 to 20.7 g (including the head shell)
(With small auxiliary weight)
10.0 to 16.4 g
18.7 to 25.1 g (including the head shell)
(With large auxiliary weight)
14.3 to 19.8 g
23.0 to 28.5 g (including headshell) Cartridge Mounting Dimension JIS 12.7 mm Interval Head Shell Terminal Lug 1.2 mm φ 4-pin Terminal Lug
Audio Output PHONO (Pin Jack), EARTH TERMINAL
Power Supply AC 110 – 240 V, 50 / 60 Hz Power Consumption 14 W Approx. 0.2 W (standby) Dimensions (W x H x D) 453 x 173 x 372 mm Weight Approx. 18 kg Accessories Turntable, Turntable Mat, Dust Cover, EP Record Adaptor, Balace Weight, Auxiliary Weight Small, Auxiliary Weight Big, Head Shell, Overhang Gauge, Screw Set for Cartridge, PHONO Cable, PHONO Earth Lead, AC Mains Lead, Screw Set for Turntable, Owner’s Manual