Technics SL-1300G Direct Drive Turntable

Coreless Direct Drive Motor Achieving Stable Rotation

In the SL-1300G, the use of a coreless direct-drive motor with no iron core eliminates uneven rotation of the turntable known as cogging. Also, the twin-rotor construction reduces the bearing load while maintaining high torque, and reduces minute vibrations during rotation. Furthermore, the SL-1300G’s motor was redesigned to eliminate subtle vibrations that could affect sound quality. To improve rigidity, the same reinforcement pattern as the Reference Class SL-1000R/SP-10R was used for the coil mounting base.

Two-layered Cabinet Construction

The SL-1300G ensures high rigidity by using a body with a two-layered construction that solidly unifies the BMC and the aluminium die-cast chassis. Reinforcing ribs have been added between the motor/tone arm on the top panel. This improves rigidity and vibration damping characteristics.

Tonearm Achieving High Initial-Motion Sensitivity

The tonearm, a crucial component for precise reading, tracks the record's rotation. Inherited from Technics, it employs a lightweight, rigid aluminium pipe in the traditional static-balance universal Sshape. Featuring a gimbal suspension and high-precision bearing, it achieves high initial-motion sensitivity through manual assembly by skilled artisans. This meticulous construction ensures accurate tracing of record grooves. Plus, it includes an auxiliary weight, providing flexibility for a variety of pickup cartridges.

Motor-Drive System, ΔΣ-Drive (Delta Sigma Drive)

Unlock a realm of audio precision with the ΔΣ-Drive – a state-of-the-art system harnessing Technics’ expertise in PWM signal processing. In addition to reducing harmonics, the drive suppresses vibrations from the motor for smoother, more accurate rotation, ensuring a rich reproduction of the music.

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.

High Damping Silicon Insulators

For the insulators supporting the body, the SL-1300G uses special silicon rubber that ensures high vibration damping characteristics and long-term reliability.

Vibration Resistance Design

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.

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.

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.

Turntable Section

Drive Method

Direct Drive

Motor

Brushless DC motor

Turntable Speeds

33-1/3, 45 and 78* rpm

The turntable speed will be 78.26 rpm when set to 78 rpm

Starting Torque

0.32 N・m (3.3kgf・cm)

Build-up Characteristic

0.7 s. from standstill to 33- 1/3 rpm

Braking system

Electronic brake

Wow and Flutter

0.025%　W.R.M.S.

Turntable Platter

Brass and aluminium die-cast combined

Diameter：332mm

Weight：Approx. 3.6kg (Including a rubber sheet)

Tonearm Section

Type

Static Balance

Effective Lengt

230mm

Overhang

15mm

Tracking Error Angle

Within 2° 32'　(at the outer groove of 30cm(12") record)

Within 0° 32'　(at the inner groove of 30cm(12") record)

Offset Angle

22°

Arm Height Adjustment Range

0 - 6mm

Stylus Pressure Adjustment Range

0 - 4g (Direct Reading)

Headshell weight

Approx. 7.6g

Applicable Cartridge Weight Range

(without auxiliary weight)

5.6 - 12.0g

14.3 - 20.7g (including head shell

with small auxiliary weight)

10.0 - 16.4g

18.7 - 25.1g (including head shell)

(with big auxiliary weight)

14.3 - 19.8g

23.0 - 28.5g (including head shell)

Cartridge Mounting Dimension

12.7 mm (1/2") interval

Head Shell Terminal Lug

1.2mmφ 4-pin terminal lug

General

Audio Output

PHONO (Pin Jack) x 1

EARTH TERMINAL x 1

General

Power Supply

AC220-240 V, 50/60 Hz

Power Consumption

For UK

10 W (ON)

0.3 W (OFF)

For other countries

10 W (Power ON)

0.3 W (Power OFF)

Dimensions (W x H x D)

453 x 173 x 372 mm

Weight

Approx. 13.0kg

Operating temperature range

0℃ to +40℃

Operating humidity range

35% to 80% RH (no condensation)

Accessories

Turntable, Turntable sheet, Dust cover,

EP record adaptor, Balance weight,

Auxiliary weight, Head shell, Overhang gauge,

Screw set for cartridge, PHONO cable,

PHONO earth lead, AC mains lead, Screw set for turntable,

Owner's Manual