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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 300

 AM/FM Multiplex Stereo Tuner Amplifier
You are loking at the most practical solid state stereo receiver on the market today. In design, performance and ease of operation, the Sansui 300 is without peer in the 36 watt class. It offers a modern black face window panel with a wide, linear scale FM tuning dial that is as functional as it is attractive. It boasts a new FET front-end with 5-stage IF amplifier for top FM sensitivity and selectivity. A wide 30 to 25,000 Hz power bandwidth (IHF) and a total marmonic distortion of less than 1% at rated output. A hum and noise figure of better than 65 dB at the phono input. And many other performance figures you'd only expect to find on receivers costing twice as much. In operating ease, it features conveniently arranged controls, the latest one-touch antenna and speaker terminals, automatic stereo switching and is able to work off both 300 and 75 Ω antennas. But it is in the field of FM reception that the Sansui 300 really shines. A new type of noise canceler that eliminates noise without weakening FM program high frequency characteristics and a built-in FM antenna are "first" for this price range. All of these features combine to make the 300 the biggest value today in quality audio equipment.
Specifications
Audio Section
Music Power Output (IHF):  36 W at 4 Ω;  32 at 8 Ω
Continuous Power Output (each channel):   16/16 W at 4 Ω;  14/14 W at 8 Ω
Total Harmonic Distortion:  less than 1% at rated output
Power Bandwidth (IHF):  30 to 25,000 Hz (at 8 Ω load)
Frequency Response (at normal listening level):
AuX over all :  25 to 30,000 Hz  ±2 dB
Channel Separation (at 1  kHz rated output):
Phono :  better than 40 dB
Aux :  better than 45 dB
Hum and Noise (IHF):
Phono :  better than 65 dB
Aux :  better than 70 dB
Input Sensitivity (at 1 kHz rated output):
Phono :  3 mV/ 50 k Ω
Aux :  180 mV/ 100 k Ω
Tape Mon (PIN) :  180 mV/ 100 k Ω
Tape recorder (DIN) :  180 mV/ 100 k Ω
Recording Output:
Tape Rec (PIN):  180 mV
Tape Recorder (DIN):  30 mV
Load Impedance:  4 to 16 Ω
Damping Factor:  20 at 8 Ω load
Equalizer Phono:  RIAA, NF type
Tone Controls:
Bass :  ±10 dB at 50 Hz
Treble :  ±10 dB at 10 kHz
Loudness Control (volume control at -30 dB):  +11 dB at 50 Hz ; +3 dB at 10 kHz
Switches
Selector :  Phono; FM Auto;  AM;  Aux
Tape Monitor :  Off, On
Mode :  Stereo, Mono
MPX Noise Canceler :  Off, On
Other Special Features:
DIN Connector for Tape Recorder, Direct Tape Monitor,Head Phone jack.
FM Tuner Section
Tuning Range:  88 to 108 MHz
Sensitivity:
20 dB quieting :  2,5 µV
IHF :  3 µV
Harmonic Distortion:  less than 1%
Signal-to-Noise ratio:  better than 50 dB
Selectivity:  better than 35 dB at 98 MHz
Capture ratio (IHF):  3 dB
Image Frequency Rejection:  better than 45 dB at 98 MHz
IF Rejection:  better than 60 dB at 98 MHz
Spurious Response Rejection:  better than 60 dB at 98 MHz
Spurious Radiation:  less than 34 dB
Antenna Input Impedance:  300 Ω balanced / 75 Ω unbalanced
FM Stereo Separation:  better than 30 dB at 400 Hz
AM Tuner Section
Tuning Range:  535 to 1605 kHz
Sensitivity:  51 dB/m at 1 kHz (bar antenna)
Image Frequency Rejection:  better than 55 dB at 1 kHz
IF rejection:  better than 45 dB
Selectivity:  better than 20 dB
Other Special Features:  FM Linear Scale Dial; Signal Strength Meter; Fly -wheel Tuning; AM ferrite Bar Antenna; MPX Noise Canceler.
Semiconductors:  36 Transistors; 1 FET; 2 Varistors; 1 Thermistar; 18 Diodes; 1 Zener Diode.
Power Requirement:  100,110,117,127,220,230, 240, 250 V  50/60 Hz
Power Consumption:  15 VA (zero signal); 100 VA (max signal)
Dimensions (W x H x D):  15-7/8" x 4-9/16" x 11-1/16"

Weight:  21 lbs
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