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Amplificateur de puissance CLASS A / CLASS A SE
Amplificateur de puissance de haut de gamme en pure classe A.
Couleurs disponibles
Description technique
Two toroidal, 400VA transformer, one per channel. Dual mono design. Pure class A operation up to 50W @ 8 Ohm. Only double-sided metallized polypropylene film capacitor in the critical points. The internal stages are DC coupled and the offset is reduced by means of an integrating amplifiers. High current capability. The protection and control sections are galvanically insulated from the analog sections to minimize the digital noise. No mains fuse. The mains current is measured at the input of the transformer (with a current probe) and in case of malfunctions it's shutted off. The voltage of both channel is measured by means of optocoupler to avoid any ground loop. The DC offset on the output (loudspeakers) is also monitored by means of optocouplers. The protections are realized with a PLD (Programmable Logic Device), more fast and reliable compared to a microcontroller.
Specifications techniques
Canaux
2
Puissance sous 8 Ohm
50W classA(200W bridged mode)
Puissance sous 4Ω
100W
Puissance sous 2Ω
200W
THD + N (1W, 8Ohm 1 KHz)
0,02 %
Slew Rate
50 V/μs
Reponse en frequence (atten. 0dB, Banda a -3dB)
1 Hz - 160 KHz
Bruit en entree (bande de 0Hz a 80KHz, pondere A)
-130 dB
Rapport signal/bruit
> 100 dB
Dimensions(HxLxP)
320 x 445 x 460 mm
Masse
61.5 Kg
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