Amplificator Technics SU-A900 MOS Class AA, baterie virtuala, poze reale

Technics SU-A900 MOS-FET

Functioneaza perfect, fara reparatii, se vinde impreuna cu telecomanda si cablul de alimentare. Daca il cumparati fara telecomanda pretul scade cu 30 de euro. Nu vand telecomanda separat!

Functioneaza in clasa AA, etaj final Mos-Fet, circuit Baterie Virtuala, transformator toroidal, 6 intrari, cea pentru pick-up cu doua pozitii, monitor si pe Tape 1 si pe Tape 2, constructie antivibratii T.H.C.B., consuma din retea 315 W.

Suna foarte bine!

Poze reale! Ce vedeti e ce primiti! (fara stand, etc)

PRETUL ESTE FIX! FARA SCHIMBURI!

Userii fara minim 3 calificative integral pozitive ori cu negative care doresc livrare in afara Bucurestiului vor plati in avans 100 ron care se scad din valoarea rambursului!

Pentru Bucuresti asigur proba cumparatorului la domiciliul meu.

Dupa ce licitati, confirmati va rog comanda si adresa dvs pe email ori pe telefonul secundar din emailul primit de la Okazii!

Garantez ambalare foarte buna!

Specificatii:

Output power 90W+90W (20Hz - 20kHz, 8ohms)
Rated distortion     0.01% (20Hz - 20kHz, an Output power, 8ohms)
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, CD, Aux, Tape 1/2: 83dB (EIAJ)
                                                              100dB (IHF'66)
                  Phono MM: 80dB (EIAJ)
                                     100dB (IHF'66)
                  Phono MC: 71dB (EIAJ)
                                    64dB (IHF'66)
Power source     AC220V, 50Hz/60Hz
Power consumption     315 W
Dimensions     Width 430x height 136x depth of 365mm
Weight     9.4kg
Adjunct     System remote control
Made in Japan


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.