1:1 Copy McIntosh Line Classic C22 MM MC Phono Vacuum Tube Preamp 2.0 Channel Pre-amplifier With remote control | Электроника

1:1 Copy McIntosh Line Classic C22 MM MC Phono Vacuum Tube Preamp 2.0 Channel Pre-amplifier With remote control | Электроника

1:1 copy McIntosh C-22 circuit

After more than 3 years of research and development, the enthusiastic team has developed the re-engraved circuit, all manual 1:1 precision soldering, all the solders are made of German imported WBT solder, and the original German Weimar resistors, Japanese ruby Capacitors, Philip capacitors, etc. are used. All fever parts are used at any cost. Each capacitor and resistor connecting wire is welded on after a carefully selected paired c-22. As for the proprietary sentinel monitor technology, it replaces the previous Power Gard, which allows continuous analysis of the output current., And turn off the amplifier when it exceeds a certain limit to maintain the service life of the device. The overall distribution of the circuit is reasonable and orderly, and the neat and tidy circuit has good consistency and completeness for the good machine is the guarantee of the product.

Using 6 12AT7 amplifier tubes, the sound is full and durable, stable gain amplification

6 12AT7 amplifier tubes use high-end gain tubes, which are 100 times the gain coefficient of ordinary 6N3 6N8

The use of proprietary Air-Pire technology to improve the heat dispersion tube, thus benefiting from the life of the vacuum tube, the sound is more emotional, the details are rich and contagious.

Product name: McIntosh vacuum tube PreampC22 (Available MM MC independent phono amplifier)

Tube model: select six 12AT7 tubes

Input impedance: balanced 44k ohms unbalanced 22k ohms

Voltage gain: 15DB

Frequency response: + 0, -0.5 db from 20hz to 20 Khz

Harmonic distortion: 0.8%

Signal to noise ratio: 》100dB

Input sensitivity: balanced 900mV unbalanced 450mV

Power supply voltage: 220V 110V (voltage can be adjusted manually)

Net weight: 11KG

Product use: Fever vacuum tube Preamp, can only be used with a power amplifier

① Left and right channel conversion

②Bass adjustment

③Treble adjustment

④Multiple input switching

⑤Switching power supply

⑥Volume adjustment

①Power input

②Fuse holder

③Balanced signal XLR output (connect to the latter stage)

④Analog signal RCA output (connect to the latter stage)

⑤Balanced signal XLR input (connected to audio source)

⑥Analog signal RCA input (connect to audio source)

⑦The independent phono amplifier of the vinyl machine can input MM and MC

⑨Ground wire vocal player dedicated

Note: The remote control can only adjust the volume

Evaluation:

The re-enacted version of C-22 has a slightly strong tone. It sounds right to Xu Jingchun. Listening to "The Moon Lady of the Zenith", the sound of the electronic synthesizer substrate is thick enough, and Xu Jingchun’s voice is mellow and thick. It’s very comfortable to hear, and it looks like "Abba’s Guitar". The C-22 has good channel separation. The nylon string guitar is on the right, the steel string guitar is on the left, and Xu Jingchun’s singing is concentrated in the center, reflecting the warmth of the vacuum tube. The timbre, but the transparency of the sound field has the appearance of a crystal machine, the sound field is clearly positioned, and the audio and video depiction is beautiful enough. The most fascinating part is the slightly rich timbre, which makes Xu Jingchun more feminine. It is really the brainchild of many musicians. The prelude saxophone solo has many decorative sounds of electric guitars behind it. The electric bass is full of vitality and sets off the clear and pure floating voice of the female voice. It is really feminine and a woman who sings. The taste can show subtle differences in the tube.

The sound of the re-enacted version of C-22 is quite open, without any restraint and pretentiousness. This natural and open sound bottom makes it easier for people to get close to music. It shows its unrestrained temperament, the voice is explicit, active, and direct. All the musicians want to say are bluntly and clearly presented. This raccoon's violin playing is intense and passionate, which makes the violin especially vivid and outstanding. The nasal tone of the cello is a bit sad, coupled with the wild playing of the accordion, even more melancholy. "Adios Nonino" is the beginning of the piano solo, which is powerful and decisive. The bass of Antal 40th is restrained. Although the extension is limited, it does not pursue the richness of the bass. The fast response bass shows the resolution and level. It’s so nice, the taste of the tube is extreme.

What kind of music uses C-22 vacuum tube Preamp? The most fascinating string music! C-22 string music not only has a healthy and full sound image, but also has a beautiful extension of the overtone luster. The high frequency band has a silky luster, delicate, soft and beautiful. With a touch of sweetness, this is the sound dyeing of the vacuum tube, it is difficult for the front stage to hear such a sweet and subtle overtone of the violin. As soon as the first movement starts two and a half bars, the solo violinist begins. The solo violinist has to stop at one hundred and grasp the overall situation immediately, but he cannot use the maximum volume. Instead, he must go from small to strong to guide the orchestra to the first. The climax of the movement, listening to the C-22, the violin solo from small to large, from weak to strong, close your eyes and listen quietly, as if you can imagine Michele Auclair's hard performance before the orchestra. The metallic texture of the brass instrument The warm luster is fully disclosed. At the beginning, the brass pipe blew out rough, heavy and powerful phrases, full of sadness and helplessness. The telescopic horn predominantly blows out a "long and short" sound, like a sigh, or a gasp, and it's like a slow step forward under heavy pressure. The timpani in the distance strengthened the tragic atmosphere at this time. The texture of the copper pipe sung by C-22 is really sharp and prominent. How rich Sibelius wrote for the copper pipe, how C-22 portrays those expressions and emotions. When the music entered a fierce climax, the layer after layer of sound explained the transparent picture of C-22. In the chanting section, the beautiful string shining brightly, perfectly reproduces the color and luster of C-22.

In terms of low-mid and low-frequency performance, the C-22 is also great for jazz. With relatively large audio and video particles, it presents the sensuality of low-frequency bass plucking. The low-frequency volume is not significant, but the texture is quite soft, adding jazz. Listening to the gentle and romantic saxophone style of John Coltrane, the warm tone is revealed, and the details of the end rhyme are naturally presented. The c-22 has a fog-like voice, which sounds more gentle. Whether it is a saxophone or a vocal, the mid-frequency of the C-22 has a little rich flavor. If you want to enjoy the music comfortably, don’t worry about the sound. Not neutral enough, transparent enough, and detailed enough, choosing C-22 is definitely a good device that can make people forget the existence of audio.

In short, the re-engraved version of C-22 performs very well, and it is a very lively, full, balanced, and dynamic preamp. 6 12AT7s can also greatly improve dynamic performance. The bandwidth of c-22 Dynamic performance is better. If you want to find a Preamp with a vacuum tube flavor and wide dynamic performance, then you must try the re-enacted version of c-22 first, which will definitely make you hooked.