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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 TA 88 (1970)

Integrated amplifier in woood-finish cabinet.

His form is perfect for not clutter, and weighs only 3.2 kg: it is really practical!

Simple circuitry, construction exemplary and very reliable


Specifications

Power Amplifier Section

Dynamic power: 60 watts, at 4 ohms; 40 watts, at 8 ohms

RMS power: 18 watts at 4 ohms; 13 watts at 8 ohms

Rated output: 11 watts per channel, both channels operating; 8 ohms

Power band width: 20 Hz to 20 kHz (IHF)

Harmonic distortion: Less than 1,05 at rated output

Residual noise: Less than 1,5 μW (8 ohms)

Preamplifier Section

Frequency response:

Phono (RIAA curve): ±1,0 dB;

Tuner, Aux, Tape Rec/PB (input): 15 Hz to 50 kHz ±3 dB

Input sensitivity and impedance:

Phono: 3 mV 50 kohms;

Tuner, Aux, Tape Rec/PB (input): 250 mV 50 kohms

Signal output and output impedance:

Rec Out: 250 mV 10 kohms;

Headphones out: 280 mV 270 kohms

Signal -to -noise ratio:

PHono: greater than 60 dB (weighting network "B");

Tuner, Aux, Tape Rec/PB (input): greater than 80 dB (weighting network "A")

Tone controls:

Bass: ±10 at 100 Hz;

Treble: ±10 at 1 kHz

Filters: High 6 dB/oct, above 5 kHz

General

Power consumption: 80 watts

Power requirement: 100, 127, 220, 240 V, 50/60 Hz, ac

Dimension (W x H x D): 130 x 230 x 165 mm

Net weight: 3,2 kg (7 lb 1 oz)

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