ShengYa A-221 HiFi Class A Integrated Amplifier Transistor & Vaccum tube HYBRID Amp
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The core of the preamplifier is a high-speed DC amplifier module chip developed with years of experience. It is characterized by wide frequency response, extremely low distortion, slim and thick sound, and dynamic and dynamic, surpassing many so-called advanced audio. Sound quality performance of ICs and discrete components.
The advanced combined type B and gallstone mixed full balance amplifier fully balanced transmission amplifying circuit, the voltage amplification input stage adopts 12AX7 electron tube, the second stage drive amplification adopts 12AU7 electron tube, the sound is warm and charming, and the sound field is wide.
Power amplification uses 16 Toshiba high-power transistors, 250W power output stage, 20W class A output, in addition to delicate and thick sound performance, there is also the potential for pulling the mountains and rivers.
500w high-power toroidal transformer, 80,000 micro-farm audio filter capacitor, low performance and dynamic.
Frequency response: 20Hz - 20kHz ± 0.5dB
Rated output power: 250W + 250W (8Ω)
Class A output power: 20W + 20W (8Ω)
Harmonic distortion: 0.1% (1kHz 1W)
Low level input sensitivity: 350mV
High level input sensitivity (LINE 5 file): 850mV
Signal to noise ratio: 90dB (wideband)
Input impedance: 47kΩ
Dimension ( W x H x D ): 430 x 206 x 445 (mm)
Weight: 32 kg
Gross weight: 34kg