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





Sony PS-LX3 turntable

Impeccable Performance and Advanced Fully-Automatic Operation

 

There are no better examples of Sony attention to the comfort and convenience of the listener than the PS-LX3 fully-automatic turntables. These models feature a high-degree of automation. As you would expect, there's automatic start and automatic return at the end of play. If you want to hear the record more than once, you merely touch "repeat" and it will obey your command until you change it.

A feature important for both convenience and safety is Sony's automatic record-size selector. A series of "windows" in he platter mat permit light to travel from a point toward the back of the turntable to two photo-sensors beneath the platter.

The sensors cause the arm to index for a 12" or 7" record automatically. When no record is on the platter, the sensors prevent any indexing at all. In this way, the tonearm, cartridge and stylus are protected from damage even if the start button is accidentally pressed with no record on the platter.

There is also a circuit which silences all audio during the start and return phases of the turntable in particular, this muting circuit eliminates the unpleasant "pop" which invariably takes place when the stylus descends into the groove. Both turntables can, with the optional Sony RM-65 , work in synchronization with selected Sony cassette deck models, for significantly enhanced convenience.


 

Specifications

Operation Type:  Fully-automatic

Tonearm Section

Type:  Static-balance straight

Effective Length:  216,5 mm (8-1/2")

Overhang:  16,5 mm

Tracking Error:  +3°00" , -1°00"

Usable Cartridge Weight (including headshell):  7,4 - 11,7 g

Supplied Headshell:  SH-151

Effective Mass (without cartridge):  8,36 g

Turntable Section

Wow and Flutter:  0,025% (WRMS), ±0,04% (DIN 45507)

FG Direct Measurement:  0,02%

Signal-to-Noise Ratio (DIN-B):  75 dB

Speed Accuracy:  better than 0,05%

Start-up Time at 33-⅓ RPM :  1/2 rotation

Platter Diameter:  310 mm (12-1/4")

Platter Weight (with rubber mat):  0,85 kg (1/14 oz)

Speeds:  33-⅓ and 45 RPM

General

Power Requirements:  AC 120 V, 220 - 240 V 50/60 Hz

Power Consumption:  9 W

Dimensions (W x H x D):  430 x 105 x 355 mm (17" x 4-1/4" x 14")

Weight:  6,1 kg (13 lbs)

Nessun commento:

Posta un commento