SONY TA-3120A

Commentary

This is a stereo power amplifier that is manufactured by taking out only the main amplifier of the TA 1120 a to support multi-channel systems.
The performance and standard are the same.

A quasi complimentary service SEPPP OTL circuit is used for the circuit system.

Model Rating

Type	All-silicon transistor stereo power amplifier
Circuit system	Quasi complimentary service SEPPP OTL circuit
Output (0.1% harmonic distortion factor)	Non-clip music power : 160W (8 Ω, both channels) Music Power (IHF) : 120W (8 Ω, both channels) Rated power (IHF) : 60W + 60W (4 Ω, ± 0.5 db) 50W + 50W (8 Ω, ± 0.5 dB) 35W + 35W (16 Ω, ± 0.5 db)
Harmonic distortion factor	1kHz Rated output : 0.05% or less At 10W output : 0.01% or less 20 Hz to 15 kHz Rated output : 0.2% or less 25W output : 0.06% or less 0.03% or less at 500 mW output
Intermodulation distortion factor (SEPTE standard 60Hz:7kHz=4:1)	Rated output : 0.2% or less At 25W output : 0.05% or less At 10W output : 0.02% or less
Frequency characteristic	Test normal switch Test : 7 Hz ~ 180 kHz + 0 -1dB (at rated output) Test normal switch Normal : 15 Hz or less is cut by 6 dB or less
Input impedance	100k Ω or more
Damping factor (1 kHz)	8 Ω : 180 or more 16 Ω : 360 or more
Sensitivity (at 50W output)	1V
S/N	110 dB (IHF, closed circuit, A-network)
Residual noise	0.1 μ W or Less (8 Ω)
Input terminal	Input : 1 system
Output terminal	Speaker Out : 1 system
Back adjustment part	Level Adjust : Semi-Fixed Test/Normal changeover switch
Semiconductor used	Transistor (21) 2SC401 : 5 2SC293 : 6 2SA527 : 2 2SD45 : 8 Diode (20 pcs) DS2M : 4 pcs SV-05 : 4 SV-31 : 10 IT22 : 2 pieces
Pwer	100 VAC (Switchable to 117 V, 220 V, 240 V) ± 10%, 50Hz/60Hz
Power outlet	Power switch interlock : 2 systems Power switch not linked : 1 system Route 3 Total 300W (maximum)
Power consumption	No signal : about 30W Rated output : approximately 250W
External dimensions	Width 180x Height 145x Depth 455 mm
Weight	Approx. 8 kg
Attachment	2 Pin Plugs Fuse (5A) Polishing cloth