SONY TA-S2

Commentary

This is a pre-main amplifier of the Component Series that was developed to be combined with the SS-S2 speaker system.

A MOS FET is used in the final stage of the amplifier circuit. Since the input impedance of the MOS FET is high, the driver stage and the output stage can be electrically separated to reduce interference with each other. Thus, high sound quality can be obtained with a relatively simple circuit structure, and odd-order distortion, which is easy to hear, can be suppressed.
In addition, the super legato linear system is adopted to reduce switching distortion and crossover distortion.

S. T. D. (Spontaneous Twin Drive) power supply is used for the power supply part.
In the S. T. D. power supply, the voltage amplifier stage (A-class stage) and the power amplifier stage (B-class stage) are separately and independently supplied with power from the rectifier circuit. Thus, even at high output, changes in the power supply voltage of the power amplifier stage do not adversely affect the power supply of the voltage amplifier stage, thus improving sound quality.
The Advanced S. T. D. power supply is a further development of this system. An induction coil is added to the voltage amplification stage to reduce voltage fluctuations during rectification. A large-capacity capacitor is also equipped to supply a large instantaneous current, thereby improving sound quality in the middle and high frequency range, S / N ratio and dynamic range.

Equipped with a source direct switch that bypasses the tone control circuit, etc.

Wireless remote control is included.

Model Rating

Type	Pre-main amplifier
Effective power (EIAJ)	50W + 50W (6 Ω)
Input Sensitivity / Impedance	Phono MM : 2.5mV/50k Ω Line system : 150mV/50k Ω
Output Level / Impedance	Headphone : 2.5 mW (8 Ω)
Frequency characteristic	10 Hz ~ 500 kHz + 0 -3dB
Signal-to-noise ratio	Phono MM:85dB Line system : 100 dB
Tone control	Bass : ± 7 dB (100 Hz) Treble : ± 6 dB at 10 kHz
Accessory function	Source direct switch Remote Commander
Pwer	100 VAC, 50Hz/60Hz
Power consumption	75W
External dimensions	Width 310x Height 90x Depth 360 mm
Weight	Approx. 5.5 kg
Attachment	Wireless Remote Control RM-S1