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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





Sansui 441

 IC-Equipped FM/AM Stereo Receiver

Sansui has a sound policy on tonal quality. And there's no better introduction to Sansui hi-fi excellence than the modestly-priced 441. production costs of this newly-developed stereo receiver have been trimmed by a Sansui-developed construction  techniquw called CBM (Circuit Board Module). This simplifies the use of high-density integrated circuits and other electronic advances to maintain truly musical dynamics and clean tonal response. Despite its agreeable price, it features a hybrid IC amplifier delivering stable, low-distortion power to either or both connected stereo speaker systems. Ics and MOS FET circuitry keep pinpoint FM/AM reception noise-free and sharp. Accurate tone controls a precise phono equalizer and all the input/output facilities needed to handle your turntable, tape deck and auxiliary source components are included.
There's more, too. And thanks to CBM, Sansui's critical policy of excellence is applied all along the line.
Specifications
Audio Section
Continuous Power
Both Channels Driven : 2 x 11 W per channel
Total Harmonic Distortion: less than 1% (from Aux)
Music Power IHF :  44 W (4 Ω, 1 kHz);  38 W (8 Ω, 1 kHz)
Continuous RMS Power Output :  12 + 12 W (8 Ω, 1 kHz)
Intermodulation Distortion (at rated power output, 70Hz : 7,000Hz = 4 : 1 SMPTE method)
Overall (from AUX) : less than 0,8%
Power Bandwidth (IHF):  40 to 18,000 Hz
Frequency Response (at 1 Watt power output)
Overall (from AUX) : 25 to 30,000 Hz,  +1  -3 dB
Equalization (at tape rec output):  RIAA Curve (30 to 15,000 Hz ±1,5 dB)
Load Impedance:  8 Ω
Damping Factor:  20 (8Ω)
Channel Separation (1kHz at rated power output)
Phono : better than 45 dB
Aux : better than 45 dB
Hum and Noise (IHF)
Phono : better than 70 dB
Aux : better than 80 dB
Input Sensitivity and Impedance (1kHz for rated poer output)
Phono : 2,5 mV/ 50 kΩ (Max. Input capability 90 mV at 0,5% distortion)
Aux : 100mV/50 kΩ
Tape
Play Pin Jacks : 150 mV/50 kΩ
Rec/Play DIN Socket : 150 mV/50 kΩ
Recording Output
Tape
Rec Pin Jacks : 150 mV
Rec/Play DIN Socket : 30 mV
Switches and Controls
Bass : +10 dB, -10 dB at 50 Hz
Treble : +10 dB, -10 dB at 10,000 Hz
Loudness : +10 dB at 50 Hz;  +8 dB at 10,000 Hz
Tuner Section
FM Mode
Tuning Range:  88 to 108 MHz
Sensitivity (IHF):  2,5 µV
Total Harmonic Distortion
Mono : 0,4%
Stereo : 0,7%
Signal-to-Noise Ratio:  better than 65 dB
Selectivity:  better than 60 dB
Capture Ratio:  2,5 dB
Image Rejection:  better than 55 dB at 98 MHz
IF Rejection:  better than 75 dB at 98 MHz
Supurous Response Rejection:  better than 65 dB at 98 MHz
Spurious Radiation:  les than 34 dB
Stereo Separation:  better than 40 dB at 400 Hz
Frequency Response:  30 to 15,000 Hz
Antenna Input Impedance:  300Ω balanced (75Ω unbalanced)
AM Mode
Tuning Range:  535 to 1,605 kHz
Sensitivity (Bar Antenna):  53 dB/m at 1kHz
Selectivity:  better than 30 dB at 1MHz
Image Frequency Rejection:  better than 80 dB/m at 1Mhz
IF Rejection:  better than 80 dB/m at 1MHz
Others
Semiconductors:  16 Transistors; 6 Diodes;  1 FET;  7 ICs;  3 Zener Diode;  1 LED
Power Requirements
Voltage : 100,117, 220, 240 V  50/60 Hz
Consumption : 40 W (rated), 210 VA (max.)
Dimensions (W x H x D):  424 x 135 x 285 mm (16-3/4" x 5-3/8" x 11-1/4")

Weight:  7,7 kg (17,0 lbs ) Net;  9,2 kg (20,3 lbs) Packed

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