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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





Pioneer SA-500 (1969)

 Pioneer model SA-500 (1969 - 1972) 44 watt Solid State Integrated Amplifier
This is an efficient medium-range pre/main amplifier built to very high specifications for this size of unit. It has a set of controls, inputs and outputs for versatile operation of speakers and tape recorders. Main amplifier total power is strong at 44 watts at 4 ohms. Circuitry is all solid state and includes low-noise silicon transistors. For those who want to enjoy full stereophonic realism the SA-500 is the set.

 Features of the SA-500
Excellent Preamplifier Performance
The low-noise silicon transistors are included in the preamplifier section and are vital for the very best signal-to-noise ratio and distortion free sound. Distortion at 44 watts is less than 0,5% at 1kHz IHF
Truly precise Tone Controls
Unlike most amplifiers, in which tone control is only approximate, the SA-500 offers truly acurate tone control through individual bass and treble. Signals really come out as you want them.
Powerful Main Amplifier
The main amplifier section puts out 36 watts in music power at 8 ohms with distortion less than 0,5% at 1 kHz (IHF). That will give you room-shaking performance where and when you want it. It has two sets of auxilliary inputs to make it a very versatile part of your stereo system.
Exceptional Flexibility
The SA-500 is fully equipped with speaker outputs, tape recording/playback connector, loudness contour and astereo headphone jack.

Specifications
Audio Section
Circuitry:  Quasi-complementary single ended pus-pull circuitry
Music Power Output:  44 watts at 4Ω;  36 watts at 8Ω
Continuous Power Output:  16 W/16W at 4Ω;  13W/13W at 8Ω
Continuous Power Output (both channel driven):  12W + 12W at 4Ω;  10W + 10W at 8Ω
Total Harmonic Distortion (IHF):  below 0,5% at 1 kHz
Frequency Response:  20 Hz to 50 khz ±1 dB (Aux)
Power Bandwidth:  20 Hz to 40 kHz (distortion below 0,5% constant/IHF)
Signal-to-Noise Ratio (volume max; tone flat, at the rated output)
Phono :  75 dB
Aux : 90 dB
Inputs and Gain, Input Impedance (1 kHz):
Phono : 2,5 mV/47 kΩ
Tuner, Tape, Aux : 200 mV/10 kΩ
Damping Factor:  Better than 40 at 8 Ω at 1 khz
Output Terminals and Jacks:
Speakers : 4 to 16 Ω
Stereo headphone jack,
Simultaneous tape recording jack,
Tape rec/play connector, DIN standards
Phono Equalization Curve:  NFB type RIAA
Tone Controls:
Bass : -13,5 dB to +13 dB (at 50 Hz)
Treble : -11 dB to +8 dB (at 10 kHz)
Loudness Contour (switchable On/Off):  +12 dB at 50 Hz ; +5,5 dB at 10 kHz (at volume level of -40 dB)
Residual Noise:  less than 0,7 mV at 8Ω (volume minimum, tone flat)
General Sction
Power Supply:  Full-wave rectifier using silicon diodes
Line Requirements:  110, 117, 130, 220, 240 volts AC; 50/60 Hz
Power Consumption:  65 VA, 55 W (Max)
Dimensions (W x H x D):  330 x 118 x 313 mm (13" x 4-5/8" x 12-5/16"
Weight:  6 kg (13,2 lbs)

  

1 commento:

  1. Would this make a good phono pre amp with my SA 8100? The phono inputs in the 8100 are shot.

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