Technics SL-D33
¥ 44,800 (around 1979)
Commentary
This is a direct drive full auto player system that further enhances the automatic mechanism of the SL-D3.
Using infrared application technology and a microcomputer, we can detect record size and record presence / absence.
Infrared light from three LEDs mounted under the turntable passes through the prism slot of the turntable and reaches the optical sensor, and the microcomputer time-splits to determine the status of the record.
The B / FG method is used to detect the rotational speed of the motor, and a unique integrated structure D. D. motor is used, in which the rotating part of the motor is integrated with the turntable.
It is a double vibration isolation structure using TNRC, an acoustic material with excellent vibration absorption characteristics, for the cabinet and base by changing the vibration characteristics.
In addition, it is designed to minimize unnecessary resonance space as much as possible and to absorb vibration most effectively through thorough vibration analysis.
The bearing structure of the tone arm employs a high-sensitivity gimbal suspension system with an in-house high-precision pivot bearing. This enables horizontal and vertical rotation axes to intersect at a single point, achieving an initial motion sensitivity of 7 mg for both horizontal and vertical.
Uses MM type cartridge.
Remote control is possible by combining with SH-R808.
Model Rating
Type | Direct drive full-automatic player system |
<Turntable portion> | |
Drive system | Direct drive |
Drive motor | Brushless DC motor |
Control system | B. FG. Servo |
Turntable | 31.2 cm Aluminum Die-cast |
Number of revolutions | 33 1/3, 45 rpm |
Rotational speed fine adjustment range | 10% |
Wow and flutter | 0.03%W.R.M.S(JIS C5521) 0.014% W. R. M. S (Rotating Part Only) |
Signal-to-noise ratio | 75dB(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 ~ 2.5g |
Shell Weight | 7.5g |
Applicable Cartridge Weight | 6g ~ 9.5g 3g ~ 6.5g (When Using Shell Weight) |
Cartridge Section | |
Type | MM Type Stereo Cartridge |
Dead weight | 6.0g |
Exchange needle | EPS-270SD (round needle, ¥ 2,800) EPS-270ED (Elliptical Needle, ¥ 5,500) |
<General> | |
Pwer | 100 VAC, 50Hz/60Hz |
Power consumption | 9W |
External dimensions | Width 430x Height 138x Depth 375 mm |
Weight | 7.3kg |