Shengya A-203HD digital integrated fully balanced amplifier is based on the upgraded version of Shengya''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s best-selling A-203 pure class A amplifier in the past. In addition to inheriting the A-203''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s consistent fully balanced amplifier circuit, the sound quality, tone color, sound field, and drive control capabilities have reached the peak of the characteristics,The signal input of the original 203GS power amplifier is amplified by field effect transistors, and now 203HD is upgraded toElectron tubeAmplification, the advantage is that it greatly improves the extension and flexibility of the middle and high frequencies, and also strengthens the depth and bounce ability of the low frequencies. The midrange is thick and bright.!It also brings two major improvements:
1,Focus on the ability to decode audio（Added multiple ports such as optical fiber, coaxial, USB, etc. USB even supports DSD256 audio files）, To become a representative of Shengya’s comprehensive performance of transistor power amplifier development and design experience and manufacturing capabilities. 203HD adds USB, optical fiber and coaxial digital interfaces, which is equivalent to a decoder + combined amplifier. When used as a post-amplifier, it adds a set of balanced input terminals.
2. The amplified output power is increased to 250W.
•The front-level volume control adopts the electronic volume control chip CS3310 manufactured by American Crystal Company
•The final stage consists of 32 high-power transistors (Sanken C3519/A1386)Form a powerful power output stage;
1000W toroidal high-power transformer
•Two channels independently use audio filter capacitors and rectifiers, with a total capacity of up to 120,000 microfarads
•This machine can be used as an independent power amplifier; this machine has optical fiber, coaxial, USB digital interface
•Within 50W, it is a Class A output state, when it exceeds 50W, it will automatically switch to Class A and B output mode
technical parameter:
■ Frequency response: 10Hz-20kHz（±0.5dB）
■ Output power: Class A 50W×2（8Ω）Class A and B 250W×2（8Ω）500W×2（4Ω）
■ Low level input sensitivity: 250mV
■ High level input sensitivity（LINE5 file）: 650mV
■ Harmonic distortion:≤0.005% (1kHz, 1W)
■ Signal to noise ratio: 95dB
■ Input impedance: 47kΩ
■ Optical fiber coaxial digital digital support: 16-24bit, 44.1-192KHz, DOP64
■ USB support: PCM: 16-32bit, 44.1-384KHz, DSD64, DSD128, DSD256
■ USB support system: Apple, Windows, digital player and other systems
■ Volume: 446×216×503mm
■ Weight: 34.5kg
■ Class A combined fully balanced amplifier ■ Built-in decoding, equipped with optical fiber, coaxial, USB digital interface ■ Output power: Class A 50W×2（8Ω）Class A and B 250W×2（8Ω）500W×2（4Ω）
A-203HD Class A integrated fully balanced amplifier, it is the upgraded version of Shengya''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s best-selling model A-203 Class A amplifier. In addition to inheriting A-203''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s consistent Class A fully balanced amplifier circuit, A-203HD also has two major features: 1. Increased audio decoding capabilities（Added multiple ports such as optical fiber, coaxial, USB, etc., USB even supports DSD256 audio files）. 2. The amplified output power is increased to 250W（8Ω）.
The A-203HD front and rear input stages use mini 6N16 tubes, and the core of the amplifying part is the high-speed DC amplifying module chip developed with many years of experience. The volume control uses the electronic volume control chip CS3310 made by American Crystal Company to control the error level between channels within 0.5dB, which is much better than the 3dB control accuracy of the mechanical potentiometer. The input stage of the latter stage is used for gallstone hybrid differential voltage amplification by electron tubes, and the famous transistors are used for the second stage of differential voltage amplification. The final stage is composed of 32 high-power transistors to form a powerful power output stage, which can drive as low as 2ΩImpedance speakers.
A-203HD is a Class A output state within 50W, with fine and thick sound. When it exceeds 50W, it will automatically switch to Class A and B output mode, which is powerful when playing big dynamic music software. This machine can be used as an independent power amplifier, and the INLE5 signal input gear can be used to connect to other pre-amplifiers as post-amplifiers, providing two input modes, balanced and unbalanced. This machine has optical fiber, coaxial, USB digital interface. USB uses the American "XMOS" solution, and the decoder chip uses ES9038Q2M. A-203HD introduces CPU full-function control and data information screen display mode. In order to make it more convenient for fans to use this machine, an infrared full-function remote control system is specially set up.
Sound description
◎The sound of A-203HD is indeed pure enough, giving people a clear, clean and clear sense of hearing.
◎A-203HD shows the existing strength of Shengya in its driving force: vigorous, vigorous and full, and the high-frequency extension shows a feminine beauty.
◎The A-203HD with 250W output power is a master of literary and military skills. You can play large-scale symphonies, whether it is Beethoven, Hector Berlioz, Gustav Mahler, and the clear texture of low-frequency replay, allowing people to experience the majesty of symphony .
◎High-power amplifier, it is easy to push the music vigorously, but the detailed expression will inevitably be rough. A-203HD is a combined amplifier with large output power, but the musical details will not be rough at all.
Reviews
If your impression of sound and elegance is still a powerful brave man, then the A-203HD Class A integrated fully balanced amplifier may bring a different new experience. The A-203HD still has a huge driving force, and it is already the best among the integrated amplifiers. To beat it, I am afraid that it will cost two or three times the price of a combination of previous and subsequent stages. But A-203HD“Novelty”, From the transparent and deep sound field performance, and the pure and delicate detail presentation, these are the advantages of A-203HD in addition to the high power, but also the progress of the new generation of acoustic amplifiers.
Pure and delicate, transparent and deep: Shengya A-203HD Class A integrated fully balanced amplifier
Since its establishment, every time that Shengya launches a new product, it has attracted the attention of enthusiasts. Shengya can be said to be a Hi-End audio manufacturer with a high degree of self-persistence in domestic audio. In the product series, we adhere to the design principles of full balance, dual mono, high current, no negative feedback, and Class A. Shengya believes that Class A is an amplifying circuit, but Class A can only play a very low efficiency inherently, most of the electrical energy is converted into useless heat to dissipate, so Class A amplifiers have a very high operating temperature, which is environmentally conscious. Nowadays, although the Class A amplifier is good sound, it may not be suitable, so Shengya designed Class A and Class AB amplifiers. In November 2019, Shengya launched an A-203HD Class A integrated fully balanced amplifier with built-in high-resolution decoding capabilities. It is an upgraded version of Shengya''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s best-selling model A-203 Class A amplifier. In addition to inheriting A-203''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s consistent Class A fully balanced amplifier circuit, A-203HD also has two major features: 1. Increased audio decoding capabilities（Added multiple ports such as optical fiber, coaxial, USB, etc., USB even supports DSD256 audio files）. 2. The amplified output power is increased to 250W（8Ω）.
A-203HD Class A integrated fully balanced amplifier represents the comprehensive performance of Shengya''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s development, design and manufacturing capabilities for transistor/tube amplifiers over the years. It uses a fully balanced amplifier circuit recognized by many international audio product manufacturers and enthusiasts. The sound quality, tone color, and sound field performance have been improved.
The A-203HD front and rear input stages use mini 6N16 tubes, and the core of the amplifying part is the high-speed DC amplifying module chip developed by many years of experience. The volume control uses the electronic volume control chip CS3310 made by American Crystal Company to control the error level between channels within 0.5dB, which is much better than the 3dB control accuracy of the mechanical potentiometer. The input stage of the latter stage is used for gallstone hybrid differential voltage amplification by electron tubes, and the famous transistors are used for the second stage of differential voltage amplification. The final stage is composed of 32 high-power transistors to form a powerful power output stage, which can drive as low as 2ΩImpedance speakers. The toroidal high-power transformer with a shielding box in the machine is filled with epoxy resin, which effectively reduces the vibration and noise interference generated by the transformer during operation. The two channels independently use audio filter capacitors and rectifiers, with a total capacity of up to 120,000μF. In addition, you can see MKP audio special film electrodeless capacitors, 1% high-precision metal film resistors, and parallel precision regulated power supplies on the circuit board.
A-203HD front and rear input stages use mini 6N16 tubes;
INLE5 signal input can be connected to other pre-amplifiers and used as post-amplifiers, providing balanced and unbalanced input modes;
The final stage uses multiple tubes in parallel to form a powerful power output stage;
Use ELNA audio dedicated filter capacitors, with a total capacity of up to 120,000μF.
A-203HD is a Class A output state within 50W, with fine and thick sound. When it exceeds 50W, it will automatically switch to Class A and B output mode, which is powerful when playing big dynamic music software. This machine can be used as an independent power amplifier, and the INLE5 signal input gear can be used to connect to other pre-amplifiers as post-amplifiers, providing two input modes, balanced and unbalanced. This machine has optical fiber, coaxial, USB digital interface. USB uses the American "XMOS" solution, and the decoder chip uses ES9038Q2M. A-203HD introduces CPU full-function control and data information screen display mode. In order to make it more convenient for fans to use this machine, an infrared full-function remote control system is specially set up.
It can be seen from the back panel that A-203HD has more decoding input ports than A-203
Sound experienceHow is the sound of A-203HD? A-203HD''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s many particulars in circuit design, production and materials are all for the pursuit of signal purity, and it sounds like it does. The sound of A-203HD is indeed pure enough, not as pure as distilled water, but it gives a clear, clean, and clear sense of hearing. The more popular way of saying is that the density is high. Because of the high density, the sound is thicker and slightly warmer. Although the sound is strong, it is not so strong that it can''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t be turned, so it doesn''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t feel too slow. The speed of A-203HD is neatly retractable, the sound texture is dense, the strength is sufficient, and it is warm, extending and natural, the shape is clearly delineated, and the space and stage are clearly expressed.
The audition scene is matched with Odeon Audio''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s midas floorstanding speakers
In terms of driving force, A-203HD shows the existing strength of Shengya: vigorous, vigorous and full, and the high-frequency extension shows a feminine beauty. In addition, A-203HD does have the pure transparency of uncovering the tulle in terms of sound transparency. For example, in Anne Sophie Mutter''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s "Tango", the wonderful dialogue between the violin and the piano vividly portrays the shapes of the two instruments. The violin''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s stringing texture and high-frequency luster have a bright but not irritating beauty, and the piano is warm and moist. There is density, the percussion particles of the keys are full and smooth, intertwining beautiful music sceneries.
The A-203HD with 250W output power is a master of literary and military skills. You can play large-scale symphony, whether it is Beethoven, Hector Berlioz, Gustav Mahler, and the clear texture of low-frequency replay, let people experience the majesty of symphony. Listening to one of the representative works of Mahler under the direction of Berlin Philharmonic by Claudio Abbado in 2005, it is also the world-recognized work "Mahler: Symphonie No.6" that is difficult to interpret. The tragic spirit and musical tension are so powerful in A-203HD. Inspiration, A-203HD digs out all the deep beauty of music. The level, texture, and emotion of music are integrated into a concrete music screen, which completely attracts people into the music. Class AB 250-watt A-203HD, although the driving force may not be indestructible, more than 90% of the speakers will definitely be matched with no problem, and it can be pushed very well. I really like the bass presentation of A-203HD. It is one of the few domestic amplifiers that can properly control the bass. How do you say? Even in the presence of a small size unit, the bass has a good sense of extension and speed, and the bass drum rebound or double bass transparency is presented under the drive of A-203HD. Leaving aside the performance of the audio, if what you want is the touch of music, then the A-203HD is definitely an unstoppable device.
To be a high-power amplifier, it is easy to push the music vigorously, but the detailed expressions are inevitably rough. A-203HD is a combined amplifier with a large output power, but the musical details will not be rough at all. . Listening to "Mahler: Symphonie No. 5" conducted by Leonard Bernstein, the movement of the brass pipes from far to near the prologue, the beautiful sound field creates a good atmosphere, looking forward to the climax of the next scenes, you can I feel that the A-203HD is tightly controlling the low frequency of the speaker, and the low frequency of the big scene is orderly. The timpani continuously beats, pushing the music to the tide, and suddenly shrinks to extremely weak. If the amplifier cannot control the woofer at this time, The music will appear chaotic and noisy. A-203HD is obviously a powerful Ouchi master, with a steady low frequency, which makes the strong ups and downs in Mahler''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s symphony more obvious.
The gentleness of A-203HD is the balance of flesh and bones. Tigerfish’s fever-famous disc "Close to Music vol.2", there are many wonderful recordings of tigerfish. Starting from Sara K’s singing, A-203HD shows the transparency and openness of the recording very well, and the singing texture is delicate and clean. ,is very“pure”Feelings. And David·Ross''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s singing, guitar and vocals are transparent and direct, and the sound is unmodified and clean. In addition to the balanced performance of personality, the music texture of A-203HD has“Rigid and soft”The taste is like "Shostakovich: Piano Concerto No.1" played by Argentine genius pianist Martha Argerich. I used to think that Martha Argerich''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s performance was strong and vigorous. When it was performed on A-203HD, the texture of the touch keys was a little bit more. It is soft, and it is a combination of rigidity and softness. Martha Argerich has always been known for her strong fingering that keeps her eyebrows free. Sometimes she feels as strong as she is about to break the strings. On the A-203HD, Martha Argerich is obviously more feminine. A-203HD moderately injects a gentle taste, showing a richer and more diverse appearance of music.
Summarize:
If you still remember the sound and the powerful brave man, then the A-203HD Class A integrated fully balanced amplifier may bring a different new experience. The A-203HD still has a huge driving force, and it is already the best among the integrated amplifiers. To beat it, I am afraid that it will cost two or three times the price of a combination of previous and subsequent stages. But A-203HD“Novelty”, From the transparent and deep sound field performance, as well as the pure and delicate details, these are the advantages of A-203HD in addition to the high power, but also the progress of the new generation of acoustic amplifiers.
manufacturer: Zhongshan Shengya Audio Electric Co., Ltd.
National distributor: Shanghai Zhuoyi Audio/Shanghai Le Songfang Audio
Contact: Mr. Shi（wx）-13788919028
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