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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-F 220 amplifier

Integrated Stereo Amplifier System:
Preamplifier :  Low-noise, High-gain equalizer amplifier
Power Amplifier ;  Pure-complementary SEPP OCL power amplifier with all stages directly coupled
Specifications:
Continuous PowerOutput RMS (both channel driven simultaneously):
70 W + 70 W at 4 Ω (DIN, 1 kHz)
70 W + 70 W at 8 Ω (DIN, 1 kHz)
50 W + 50 W at 8 Ω ( 20 Hz - 20 kHz, T.H.D. 0,05%)
Input Sensitivity/Impedance
Phono (MM) :  2,0 mV/50 k Ω
Tuner, CD, Video, Aux, Tape, DAT :  150 mV/ 50 k Ω
Signal-to-Noise Ratio (weighting network, input level)
Phono (MM) :  70 dB (A, 2 mV)
Tuner, CD, Video, Aux, Tape, DAT :  100 dB ( 150 mV)
Total Harmonic Distortion:  less than 0,05% at rated output
Intermodulation Distortion (60 Hz :7 kHz = 4:1):  less than 0,05% at rated output
Frequency Response:
Phono :  RIAA equalization curve ±0,5 dB
Tuner, CD, Video, Aux, Tape, DAT :  7 Hz - 100 kHz ±3 dB
Residual Noise:  less than 170 µV (network A)
Damping Factor:  40 ( 8 Ω, 1 kHz)
Output Level / Impedance:
Rec Out :  150 mV/ 1 k Ω
Speakers :  4 - 6 Ω / 8 - 16 Ω
Headphones :  Accepts low/high impedance
Tone Controls
Bass Control
Response ;  ± 7 dB at 100 Hz
Turnover Frequency :  500 Hz
Treble Control
Response :  ±8 dB at 15 kHz
Turnover Frequency :  3 kHz
Loudness (Attenuation 30 dB):  +6 dB at 100 Hz ; + 3 dB at 10 kHz
Power Requirements:  220 V / 240 V AC, 50/60 Hz
Poer Consumption:  150 W (220 V); 380 W (240 V)
Dimensions (W x H x D):  430 x 135 x 315 mm ( 17" x 5-3/8" x 12-1/2")
Weight:  7,4 kg (16 lb 5 oz)