Description: Technics SU 50A Stereo Integrated Solid State Amplifier Vintage 1969 Good LookThe description of this item has been automatically translated. If you have any questions, please feel free to contact us. TECHNICS SU 50A Stereo Integrated Solid State Amplifier Vintage 1969 GOOD LOOK TECHNICS EAA-2010/SU-2010/SU-50A/ TECHNICS 50A ¥95,000 (released in June 1969) ¥95,000 (around 1970) Working perfect, All Refurbished Work On 100/120/220/240 volts AC VERY RARE Vintage Amplifier with New GREEN LED lights Like MCINTOSH! This solid state pre-main amplifier was created by integrating the development technologies of the TECHNICS 10A, 20A, 30A, and 40A tube type amplifiers. The model number has been changed 3 times: EAA-2010, SU-2010 and SU-50A. The main amplifier section uses a two stage differential amplifier circuit and an OCL circuit with a two power supply system. All stages are directly connected. The circuit configuration without an output capacitor improves low-frequency characteristics and improves stability and linearity. The equalizer stage of the preamplifier amp section is composed of 3-stage direct connection NF type using low-noise PNP transistor, which solves the shortage of dynamic range and obtains high S/N. The tone control circuit is based on TECHNICS 's original method using special double volume. This system has a special structure that combines a silver conductor and a resistor. At the midpoint, both brushes touch the silver conductor, so that all capacitors are removed from the circuit to become a resistance-only circuit, resulting in a flat characteristic. A protection circuit using four transistors and two diodes is mounted. This circuit is equipped with an automatic control and protection device that detects the operating point of the power transistor to maintain safe operation, an automatic correction circuit for temperature changes, and an instantaneous recovery type so that even if an excessive current flows, the signal only clips and operation is not interrupted. The front panel features push-button input selection buttons and a large volume knob to improve usability. In addition, it uses a design in which the letters on the front panel come out when the switch is turned on. The pre-out terminal is equipped with two systems, a Low terminal with a rated output of 1 v and a High terminal with a rated output of 5 v. It is equipped with 4 AC outlets. Equipped with two types of speaker connection terminals. Model Rating TypeSolid state pre-main amplifier Circuit systemFull-stage direct-coupled differential amplifier SEPPP OTL-OCL Circuit Power Amplifier Unit Music Power (IHF)120W (4 Ω) 80W (8 Ω) 50W (16 Ω) Rated Output (IHF)40W/40W (4 Ω) 30W/30W (8 Ω) 20W/20W (16 Ω) Frequency response (at rated output)5 Hz to 150 kHz Signal-to-noise ratio95 dB or more (IHF, A-network, input short) Input Sensitivity / Impedance1V/50k Ω Damping factor 150 (8 Ω) Adaptive load impedance4 Ω ~ 16 Ω Transistor protection circuitASO detection method instantaneous return type Preamplifier Section Input Sensitivity / Impedance (1 kHz, Volume max)Phono1, 2 : 1mV/47k Ω Tuner: 100mV/70k Ω Aux1, 2 : 100mV/70k Ω Maximum allowable input (1 kHz, 0.1% distortion rate)Phono1, 2 : 140 mV Tuner:10V Aux1, 2 : 10v Output Voltage / Impedance Rated output: 1V/3k Ω (Low) 5V/200 Ω (High) Maximum output (1 kHz, 0.1% distortion rate) :1.8V(Low) 9V(High) Tape monitorRec out : 100mV/200 Ω Playback: 100mV/70k Ω Rec/Play( din ):30mV/60k Ω (IN) 100mV/70k Ω (OUT) Signal-to-noise ratio (IHF, A-network Input short)Phono1, 2 : 70 dB or more Tuner: 90 dB or higher Aux1, 2: 90 dB or more Total harmonic distortion factorNot more than 0.1% Frequency characteristic High, VRmax, TCflat :Phono1 and 2 : within ± 0.5 dB deviation from RIAA standard curve Tuner: 5 hz to 200 kHz, + 0 to 3 db Aux1, 2: 5 Hz to 200 kHz, + 0 -3dB Low, VRmax, TCflat :Phono1 and 2 : within ± 0.5 dB deviation from RIAA standard curve Tuner: 5 hz to 150 kHz, + 0 to 3 db AUX1, 2: 5 Hz to 150 kHz, + 0 -3dB Tone controlBass: +15dB ~ -15dB Turnover frequency: 250 Hz, 500 Hz Treble: +15 dB to -15dB Turnover frequency: 2.5 kHz, 5 kHz FilterLow : 30 Hz, -12dB/oct. High frequency: 8 kHz, -12dB/oct. Muting-20dB
Price: 1476.24 USD
Location: Albarizas
End Time: 2024-11-12T23:25:12.000Z
Shipping Cost: 277.01 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Warranty del manufacturer: Without warranty
Audio Outputs: Stereo L/R RCA, Connectors speaker of banana
Power RMS: 2 X 30 Watts RMS
Year production: 1969-1970
Color: Black
Number of Outputs: 4
Input audio: Stereo RCA
Audio Inputs: Pre Out, AUX, Phono/Turntable, Stereo L/R RCA
Number of ports: 6
Amount of units: 1
Formats compatible: SU-2010
Compatible Product: SU-50A, SU-2010, EAA-2010, 50A
Style: Amplifier integrated
Model: SU-50A
Brand: Technics
Unit Type: Unit
Power: 30+30 Watts RMS
Amplifier Class: A
Features: Finished analog
Number of Channels: 2
Country/Region of Manufacture: Japan
Type: Does not apply
