What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





C.E.C. Chuo Denki ST-130


 Direct-Drive Automatic Turntable ST130
Turntable rotational acuracy achieved in the ST 130 is attributed to the 20-pole 30-slot direct drive motor. Rumble has been almost eliminated. Wow and fluter have also been greatly reduced. The body designs is very compact with front operation.

Direct-Dive Motor
The high performance DD motor has been manufactured with precision and accuracy to provide unswerving rotational accuracy. The DD method provides motor-platter marriages for perfection in drive.

Acoustic Feedback Reduction
Acoustic feedback is almost eliminated with the original independent suspension design. A design based on vibreation damping cushions and balanced steel springs isolates the cabinet assembly from outside vibration influences.


 Oil-Damped Cueing
When the needle is placed on the record, an original iol damping mechanism makes the contact gently. No more damage to your records at cueing time.

Low Mass Straight Tonearm
A low mass straight tonearm with resonant frequency matching assures accurate tracking and gentle care for your delicate records.

Auto Return and Auto Shutoff
The tonearm is also automatically returned to rest and power turned off at the end of play.This feature frees you to enjoy play without worrying about the end of the rcord.

Pitch Control
A pitch control is incorporated to permit adjustments for the sensitive ear. Now you can play or sing along with your favorite recorded pieces without the noticeable difference in pitch.



SPECIFICATIONS
Turntable
Motor:  20-pole, 30-slott, 3-phase brushless type DC servo controlled direct drive motor
Speeds: 33 and 45  r.p.m.
Speed Calibration:  Pitch control ±3%
Wow & Flutter:  0,055% (WRMS),  ±0,085% (DIN 45507)
Rumble: 
Unweighted : 38 dB (DIN 45539A)
Weighted : 65 dB (DIN 45539B)
Turntable platter:  308 mm aluminium alloy die-cast with strobe outside rim
Tonearm:  Straight-line tubular, static balance type with removable headshell and antiskating device
Effective lenght:  222 mm
Overhang:  16,8 mm
Adjustable tracking force:  0 - 2,5 g with direct readout weight
Usable cartridge weight:  4 - 6,5 g
Cartridge (optional):  Moving Magnet type, model MM3 with 0,6 mil diamond stylus
Frequency response:  20 -20,000 Hz
Output voltage:  3 mV ±3 dB at 1 kHz  3,54 cm/sec
Channel balance:  Within 2 dB at 1 kHz
Channel separation:  More than 18 dB at 1 kHz
Load resistance:  47 Kohm
Weight:  4,6 g
Optimum stylus force:  1,8 g
General
Automatic functions:  Automatic return and shutoff
Power source:  120V 60 Hz for North America,220 V 50 Hz for Europe
Power consumption:  6 watts
Dimensions:  420 x 121 x 365 mm (W x H x D)
Weight:  4,5 kg (nett)

Nessun commento:

Posta un commento