Shengya

this is the Upgraded version of the shengya A-238, Now the parts have upgraded Feature: The pre-amplification part adopts imported ECC83 tube common cathode type amplifying circuit, and imported ECC82 tube acts as SRPP for driving amplification; Adopt hybrid precision high-voltage stabilized power supply of electron tube and transistor, the voltage stability is extremely high; the power amplifier is composed of Japan Toshiba high-power transistor to form a 0dB current amplifier circuit; The...

Product parameters: Fiber optic and coaxial digital support: 16-24Bit, 44.1-192kHz, DOP64 USB support: PCM: 16-32Bit, 44.1-384kHz, DSD64, DSD128, DSD256, DSD512 Frequency response: 20Hz -50kHz ± 0.05dB Rated output voltage: 2V (unbalanced) Maximum output voltage: 30V (unbalanced) Harmonic distortion: ≤ 0.03% (1kHz 2V) Input sensitivity: 200mV (unbalanced) Signal to noise ratio: ≥ 95dB Input impedance: 47k Ω External dimensions (W * H * D): 446 * 142 * 415 (mm) Weight: 12.5kg...

Feature: • Advanced design of dual mono fully balanced amplifier circuit, two channels are completely independent; each channel uses an R-type power transformer • The use of ECC803 and ECC802 audio special tubes and matching gold-plated tube sockets, the sound performance is sweet and natural, and the dynamic is huge • Tube type A output buffer up to 30V undistorted output voltage, easily match any post-stage power amplifier • 4 German WBT products are used for unbalanced...

1.The machine has a transistor audio output and tube audio output two output options; to facilitate the user according to the different audio equipment or listening preferences to choose the appropriate audio output mode. Transistor audio output; deep deep and powerful, wide sound field, dynamic and powerful. Tube audio output; beautiful sound performance sounds, pure thick natural, slim and sweet. Tube and transistor hybrid precision high-voltage power supply, high voltage stability. AC ripple...

Feature: • The front level volume control adopts the electronic volume control chip CS3310 manufactured by American Crystal Corporation • The final stage is composed of 32 high-power transistors to form a powerful power output stage; 1000W toroidal high-power transformer • Two channels independently use dedicated audio filter capacitors and rectifiers, with a total capacity of up to 120,000 microfarads • This machine can be used as an independent post-stage power amplifier;...

Shengya PSM-338 HI-end Mono Full Balanced Gallstone Hybrid Class A Power Amplifier 100% original factory and brand new      

Feature: • Adopt independent mono balanced amplification principle structure; can set the output status of category A or A and B • The audio signal input stage is amplified by the electron tube, and the final stage is composed of 24 high-power transistors. 0dB power output stage • The power supply part is composed of a 1500W toroidal transformer and 160,000 microfarad special electrolytic capacitors • Unbalanced signal input terminals and speaker connection terminals are...

The main features of A30 are: ① The output transformer of the traditional bile duct machine is canceled and the power semiconductor transistor is used to replace the output transformer. The advantage is that various additional distortions caused by the traditional output transformer, such as frequency, phase, transient, square wave distortion, are completely eliminated, so that the frequency response range of the A30 can reach 10Hz-60kHz ± 1dB, and the output power can reach 200W/8...

• Adopt independent dual-channel balanced transmission amplifier structure, effectively eliminate dynamic crosstalk interference problems; • The audio signal input circuit is composed of field effect transistors for cascode differential amplification, and famous transistors for differential voltage amplification; • The final stage is composed of 24 high-power transistors to form a powerful power output stage, which can easily drive speakers with an impedance as low as 2 ohms;...