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-5520

SONY PS - 5520 BELT DRIVE (1972)

The Sony model PS-5520 is a well engineered and versatile turntable that can be operated automatically or manually.
Automatic operation is accomplished using only the operating lever.
This model has many important features which contribute to the faithful reproduction of your records; a static balance tonearm, an effective anti-skating compensator, a 4-pole hysteresis synchronous motor, and so on.
The PS5520 tracks records faithfully, thereby preserving their original brilliance for many plays.
This model is also compatible with the most advanced cartridges currently available.

Platter: 11 7/8" diecast aluminium alloy
Platter weight: 2lb 3oz
Speeds: 33 and 45rpm
Drive system: belt drive
Motor: 4-pole condenser hysteresis synchronous
Wow and flutter: less than 0.1% WRMS
Signal to noise ratio: better than 43dB
Tonearm: static balance
Overall arm length: 294mm
Effective length: 215mm
Overhang: 15mm
Stylus force adjustment: 0 to 3g
Cartridge weight range: 4 to 14g
Cartridge: VM-22GA induced magnet
Frequency range: 20Hz to 20kHz
Channel separation: 25dB
Output: 4mV
Stylus force: 1.5 to 2.5g
Stylus: conical 0.5mil diamond
Weight: 6.7g
Dimensions: 17 3/4 x 6 7/8 x 15 9/16"
Weight: 18lb 11oz

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