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-X55S turntable

Computerized Convenience and performance

The PS-X55s is a deluxe turntable in every way. Full automation, microcomputer control , and the ability to operate in synchronization with selected Sony cassette decks make the X55S a logical choice for the discerning music lover.

Outstanding Features

Advanced fully-automatic operation for total convenience

Automatic record-size selector permits precise and safe indexing

Feather-touch controls respond to the slightest finger contact for fast, effortless function selection

Straight Duralumin tonearm for low mass and excellent tracking

 


 

Tonearm and Function

Two-point tonearm support for high rigidity and low modulation noise

Discrete tonearm servo motor for continuous, smooth and uniform action independent of platter rotation

Luminous and -of-disc sensor frees the tonearm from mechanical linkages for improved sensitivity

Front controls provide convenient operation - even with the dust cover closed.

Audio muting circuit provides silence during start, return, and cueing phases.

Capable of operation in synchronization with selected Sony cassette decks using the optional Sony RM-65

"Repeat" mode for continuous music

Turntable and Construction

Quartz lock with Magnedisc servo control prevents even minute speed variations caused by external factors

The Sony Linear Torque BSL (brushless, slotless) motor designed for uniform and smooth delivery of torque

Electromagnetic braking provides rapid and smooth half of platter rotation

Sony Bulk Molding Compound (SBMC) base is both rigid and acoustically inert to reduce feedback

Adjustable gel-filled feet isolate turntable from external vibrations

 


Specifications

Turntable

Platter:  310 mm (12-1/4-inch) aluminum-alloy diecast

Motor:  Linear BSL (brushless and slotless) motor

Drive System:  Direct drive

Control System:  Crystal lock control, magnedisc servo control system

Speed :  33-⅓ and 45 rpm

Starting Characteristics:  Comes to nominal speed within a half revolution (33-⅓ rpm )

Wow and Flutter:  0,02% (WRMS)

Signal-to-Noise Ratio :  78 dB (DIN-B)

Load Characteristics:  0% up to 100 g stylus force (at lead-in groove of a record)

Speed Deviation:  Within ±0,003%

Automatic System:  lead-in, return, reject, repeat, record size selection

Tonearm

Type:  Statically balanced

Pivot-to-stylus Length:  216,5 mm (8-1/2")\

Overall Arm Length:  300 mm (11-7/8")

Overhang:  16,5 mm (21/32")
tracking Error:  +3° to -1°

Stylus Force Adjustment Range:  0 - 25 g

Cartridge Shell Weight:  5 g

Cartridge Weight Range (including supplied shell):  7,5 - 11,5 g (11- 15 g with extra weight)

General

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

Power Consumption:  12 W

Dimensions (W x H x D):  430 x 135 x 375 mm (17" x 5-3/8" x 14-7/8")

Weight:  8 kg (17 lbs 10 oz) Net


 

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