Audio Database

SL-1301
Commentary

Quartz D. D d. player system developed with the know-how accumulated in SP-10mkII.

More than 1100 elements required for quartz locks are integrated into three ICs using accumulated know-how, circuit and semiconductor technology. The three ICs, DN860 for frequency division and rotation speed setting, AN660 for phase speed control circuit by sample hold, and AN640 for drive circuit, provide high-precision reference signal and rotation speed detection.

Phase control (quartz フェイズロックド control) based on the oscillation of a high-precision crystal oscillator is adopted.
In addition, a push-pull all-around detection FG that cancels the influence of external induction is used to detect the rotational speed. By detecting all around the rotational axis, a high-precision comparison signal is detected.

The drive is equipped with a DC motor that employs 3-phase full-wave bidirectional drive.

Equipped with an electronic brake mechanism that stops the turntable smoothly and quickly.

The rotor and turntable of the motor are integrated. The integrated structure D. D motor unique to Technics is adopted to realize high precision and high reliability.

The cabinet uses precision die-cast aluminum that is resistant to changes in the external environment.

The arm, turntable and motor are mounted on a main base that floats from the cabinet with a good balance of an insulator made of appropriate viscoelastic material and metal spring.
In addition, the cabinet also uses a double insulator supported by an insulator with excellent vibration isolation characteristics, and exhibits excellent insulation and absorption characteristics against direct sound pressure of speakers and external vibration.

The bearing of the tone arm employs a gimbal suspension system using a precision pivot bearing, and the horizontal and vertical axis cross at one point, realizing a high initial motion sensitivity of 7 mg for both horizontal and vertical motion.

Equipped with MM type cartridge that achieves flat frequency characteristics by low mechanical impedance design.

Model Rating
Type Quartz phase locked control
Direct drive full auto player
<Turntable portion>
Drive system Direct drive
Drive motor Brushless DC motor
Control system Quartz phase locked control
Turntable 33 cm Aluminum Die-cast, 2.2 kg (Including Rubber Sheet)
Number of revolutions 33 1/3, 45 rpm
Starting torque 1 kg / cm
Brake mechanism Electronic brake
Load variation 0.9 kg / cm or Less, 0%
Rotational speed deviation Within ± 0.002%
Wow and flutter 0.025%W.R.M.S(JIS C5521)
Signal-to-noise ratio 78dB(IEC98A weighted)
Tone Arm Section
Format Universal S-shaped
Static balance
Gimbal suspension system
Rotational axis sensitivity 7 mg (horizontal and vertical initial motion sensitivity)
Needle pressure adjustment range 0 ~ 3g
Shell Weight 9.5g
Applicable Cartridge Weight 5g ~ 11g
Cartridge Section
Type MM Type Cartridge
Dead weight 6.0kg
Exchange needle EPS-270SD (round needle, ¥ 2,800)
EPS-270ED (Elliptical Needle, ¥ 4,500)
<General>
Pwer 100 VAC, 50Hz/60Hz
Power consumption 8W
External dimensions Width 453x Height 125x Depth 369 mm
Weight 9.3kg