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-4300F

 High Performance Channel Dividing Preamplifier
Unsurpassed Quality - 24 FET's (Field EffectTransistors) exclusively engineered for high fidelity account for an extremely low distortion of 0.03% at 1V output and high S/N ratio of 85 dB at 1V input.
Simple Dividing of Channels - The original frequency range can be divided into 2 or 3 parts with channel selector screw. With the TAD-43F (optional), 4-channel dividing for tweeter and super tweeter is also possible. With two TA-4300F's, the dividing range can be made into 5 parts.
Precise Selection of Crossover Frequencies - You can simply obtain precise crossover frequencies best fit for the characteristics of your speakers with the crossover frequency selector. In 3 channel dividing, 6 steps between 150 - 1000 Hz for low/mid crossover frequency range and 6 steps between 1,5 - 8 kHz for mid/high crossover frequency range are available. In 2 channel dividing, 12 steps of crossover frequencies between 150 Hz - 8 kHz are also available with switchig of the channel selector screw.
Each crossover frequency consists of NF type filter with the slope of 18 dB/oct.
Advanced Bass Control - Low channel frequency shift switch changes the cut off frequency at low frequency range and compensates the characteristics of speakers. Bass boost level control is provided for bass boost at frequencies below 150 Hz having the slope of 12 dB/oct that boost at 20 Hz up to maximum 18 dB,
Effective Level Controls -  Equalizes the unbalanced efficiency of speakers to attain flat and smooth frequency response throughout.
System:  Negative feedback type filter
Gain:  +0 -1 dB
Crossover Frequency: 
Low :  150, 250, 400, 600, 800, 1000 Hz
High :  1,5; 2,5; 3,5; 4,5; 6; 8 kHz
Output Impedance:  less than 5 k Ω
Input Impedance:  90 k Ω
Within the passband :  less than 0,03%  at 1 V output; 0,1% at 4 V output ,
At the crossover frequency :  less than 0,05% at 1 V outoyt; 0,1% at 2,5 V output
Signal-to-Noise Ratio:  beter than 85 dB at 1 V input (short circuited)
Maximum Input Level:  4,5 V (less than 0,1% distortion)
Frequency Response:  10 Hz - 100 kHz +0 -1 dB
Semiconductors:  24 FET's ; 16 Transistors; 3 Diodes
Power Requirements:  AC 100,117, 220, 240 V 50/60 Hz
Power Consumption:  5 W
Dimensions (W x H x D):  200 x 149 x 316 mm (7-1/8" x 5-7/8" x 12-7/16")
Weight:  3,8 kg (8lb 6 oz)
Supplied Accessories:  Connecting cord RK-74; Polishing cloth

Optional Accessories:  4-channel adaptor TAD-43F

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