Legendarna końcówka mocy Technics SE-A2000. Produkowana tylko na rynek japoński ( zasilanie 100 V ) Stan techniczny idealny, po przeglądzie w autoryzowanym serwisie. Jedyne co wymieniane to żarówki. Niestety oryginalne, osiowe nie są już dostępne, zostały zastąpione zamiennikami, również osiowymi. Oczywiście dodaję posiadany zapas. Końcówkę używam około pół roku i nie przepaliła się żadna.
Stan zewnętrzny widoczny na zdjęciach. Front bez rysek, boki noszą ślady ubytku lakieru.
W komplecie transformator zewnętrzny 240/100V, 600W, 4gniazda.
Zapraszam do odsłuchu, żeby się przekonać, co to maleństwo potrafi wydobyć z siebie.
Preferowany odbiór osobisty.
Stereo power amplifier which adopted the MOS class AA circuitry. The MOS class AA circuitry using Power MOS FET is carried. In the class AA circuitry, separate amplifier is performing the voltage amplification and the current supply source. For this reason, a tone quality is improved because voltage control amplifier carries out a first class operation in an unloaded condition, and also neither an impedance variation of a speaker nor the influence of counter-electromotive force is received, but the stable operation is obtained. In the MOS class AA circuitry adopted as SE-A2000, the bipolar transistor excellent in drive capacity and MOS FET which is excellent in an input/output linearity and can control output power by a small input current are adopted based on a class AA scheme, and completeness is raised. R and a core transformer are adopted as a power transformer, and the regulation which was excellent while reducing leakage flux is gained. The virtual battery operation which stops a power-source noise is carried in the signal amplification part. In this circuitry, the criteria potential occurrence circuitry is used for capacitor charge by including MOS FET in a power circuit. This prevented power-source noise mixing to a sound signal by intercepting a circuitry at the time of a music play, and capacity [ equivalent to a battery drive ] of operation is realized. Firm 3 box construction is adopted as a chassis structure. Moreover, the internal layout makes the right-and-left channel the twin monophonic structure where it became independent, respectively, and has improved sharply the noise and crosstalk which are generated among both channels. The newly developed non-inductive resistance object is adopted as internal circuitry. In order for this resistor to prevent barring faithful signal regeneration with the Joule's heat emitted itself, it is raising the alumina content of the insulator which is a base material. Thereby, the high region response is raised. The reliable golden cladding contact relay is adopted as the change of a speaker. The balance input terminal is carried.
