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Details about  Technics SU-A900

Technics SU-A900 See original listing
Technics-SU-A900
Item Ended
Item condition:
Used
Ended:
20 Jan, 2014 23:26:20 GMT
Winning bid:
EUR 116.06
Approximately £91.75(including postage)
23 bids ]
Postage:
EUR 32.00 (approx. £25.30) Paquete internacional económico | See details
Item location:
Valencia, Spain

Description

eBay item number:
301065556112
Seller assumes all responsibility for this listing.

Item specifics

Condition:
Used: An item that has been previously used. The item may have some signs of cosmetic wear, but is fully ... Read moreabout the condition
 
Technics SU-A900 (around the 1994 time) 

Virtual battery operation is an Integrated Amplifier which carries high-quality sound technologies, such as the MOS class AA. 

The MOS class AA original with technics is realized by adopting power MOS-FET. 
MOS-FET is adopted as the Class-A operating voltage control amplifier of a class AA output stage in the MOS class AA circuitry. Moreover, the linearity which was excellent in adopting a bipolar transistor as current amplification amplifier with the ideal operating state of the electric-current output 0 is demonstrated. 

In order to stop the noise in a power-source part, virtual battery operation is adopted. 
In this circuitry, the criteria potential occurrence circuitry is used for capacitor charge, and the voltage is supplied to the gate of the FET element from the capacitor during the music play. For this reason, a criteria potential occurrence circuitry is intercepted effectively and prevents noise contamination of an audio signal. 

The cross section has adopted as a power-source part R core transformer which wound the coil around the circular core closely, and leakage magnetic flux is stopped few by uniform magnetic flux being formed. 
Moreover, the master series capacitor developed only for the audio is adopted as a capacitor. This capacitor is braking its oscillation effectively in the three-layer case which put the resin layer between two layers of aluminum while carrying out tone-quality examination of the electrolytic solution and the aluminum foil. 

THCB (technics high Brit construction base) is adopted as a chassis structure. 
At THCB, the multilayer structure by the hard chassis and a hard robber is adopted, and the ill effect to the tone quality by oscillation is stopped by reducing an unnecessary oscillation. 

In the volume, high-quality sound-ization is attained by adopting a gilding brush, a specular surface finish carbon resistor, and a zinc vibration suppression case. 
Moreover, the tone control in remote control is possible by adopting a motor drive scheme. 

The high robustness is secured by the input/output switching of the termination hardwired connection by gilding contact relay. 

Two speaker terminations are carried. . A simultaneous drive (8ohm+8ohm) is also possible. 

The system remote control which can operate the compact disk player of technics, a tuner, and a cassette deck is attached. 


 

Rating of a mode
Form Integrated amplifier
Output power 65W+65W (20Hz - 20kHz, 0.02%, 6ohms) 
50W+50W (20Hz - 20kHz, 0.01%, 8ohms)
Rated distortion 0.01% (20Hz - 20kHz, an Output power, 8ohms)
THD 0.01% (total to 20Hz - 20kHz, Output-power-3dB, 8 ohms, and the 10th higher harmonic)
Dumping factor 60 (8ohms)
Load impedance 4-16ohm (A, B) 
8-16ohm (A+B)
Frequency characteristic Tuner, compact disk, Aux, and Tape1/2:20Hz-20kHz+0 -0.3 dB 
3Hz-80kHz+0 -3 dB
Equalizer deflection 30Hz-15kHz±1dB
Input sensitivity/impedance Tuner, compact disk, Aux, 1/2:150mV of Tape(s) / 22kohm 
Phono man month: 3mV / 47kohm 
Phono MC: 200 microvolts/220 ohms
Tone control property Bass: ±10dB (50Hz) 
Treble: ±10dB (20kHz)
S/N ratio Tuner, compact disk, Aux, Tape of 1/2:83dB (EIAJ) 
100dB(IHF'66) 
Phono MM:80dB(EIAJ) 
100dB(IHF'66) 
Phono MC:71dB(EIAJ) 
64dB(IHF'66)
Power source AC100V, 50Hz/60Hz
Power consumption 160W
Dimensions Width 430x height 136x depth of 365mm
Weight 9.4kg
Adjunct System remote control

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