This machine is the main sales model of low-priced CD player in Tianlong Company, which has a large market share and is still in marketing. It was awarded "What Hi-Fi? Audio magazine was rated as a 5-star product. Although the price of this machine is not high, the circuit design and materials of the machine are unambiguous, and the movement is a self-developed suspension pickup transmission system. Digital signal processing still uses α converter with adaptive linear harmonic algorithm and automatic low-pass filtering adjustment, and outputs 20-bit digital signals to 20-bit 2-D/A converter. With the LAMBDA superlinear converter built by Tianlong, the audio signal output by the whole machine is more natural, transparent and clear. This is the reason why DCD- 10 15G has gained a firm foothold in the market for many years, and it is also the advantage of this machine in this level. The machine has two colors of gold and black for users to choose from. The gold model has mirrored piano boards on both sides, and the price is about 180 yuan.
DCD- 10 15g has stable and reliable performance and low failure rate. When playing large-scale dynamic music, the machine has a solid and wide sound field and a good sense of strength, and can show cadence and ups and downs in sound effects. When playing vocal music and instrumental music programs, singers and performers are positioned accurately and the atmosphere is authentic. Compared with expensive models, the overall sound quality of this machine is slightly stiff, lacking the flexibility of high-end machines. However, the machine has won the trust of users with high cost performance.
Main technical parameters
Frequency response: 2hz-20khz; ; Signal-to-noise ratio:112db; Dynamic range:100 db; ; Channel separation:105 db; ; Harmonic distortion: 0.002%; Overall dimensions: 470mm×115mm× 288mm; 4.9 kilograms.
Market reference price: 3600 yuan.
Tianlong DCD-8 15g
This is an evergreen tree popularization machine that Tianlong Company put on the market a few years ago, and it is still in marketing. The appearance of the machine is golden champagne color, with piano boards on both sides, and the production process is relatively fine. The machine core adopts suspended pickup assembly, which has the advantages of low mechanical noise and fast tracking speed. This machine inherits the company's famous technologies: 18bit LAMBDA superlinear converter and 20bit 8 times sampling digital filter, which makes the waveform of analog output signal smoother and ensures the purity of sound and the accuracy of audio. In order to facilitate users to upgrade, there is a digital coaxial interface behind the fuselage.
DCD-8 15G can clearly reproduce the music with strong bass, with a good sense of speed. Instrumental music is played skillfully and smoothly, and the performance of human voice is true and natural, without any unsatisfactory phenomenon. Compared with the company's high-end machine, the control of bass is a little less, and the air sense and aftertaste of treble are not enough, but it is still a premium model.
Main technical parameters
Frequency response: 2hz-20khz; ; Signal to noise ratio:107 db; ; Dynamic range: 98dB；; Channel separation:103 db; ; Harmonic distortion: 0.0025%; Overall dimensions: 470 mm×100 mm× 280 mm; 4.4 kilograms.
Market reference price: 3000 yuan.
Maranz CD player
Audio equipment produced in marantz enjoys a high reputation in the industry. In the early years, it was the representative of advanced acoustics, and now it is the perfect combination of Japanese acoustics and European traditional music styles. The company's most representative products are a series of high-quality CD players. Each model has been improved for several generations, and it has become a cost-effective brand loved by audio enthusiasts. Marantz CD player is characterized by natural and transparent sound and full of musical appeal, which is closely related to the company's design concept and components used.
Marantz CD- 14
This machine is the latest high-grade machine of marantz Company. The appearance has the consistent style of the company's advanced CD player. The body consists of steel frame, copper-plated bottom plate, metal die-casting thickened side plate and finely carved aluminum alloy panel. The transmission mechanism in the machine adopts Philips top-class harmonic-free linear scanning CDM- 12.3 laser mechanical system, and cooperates with low-noise digital driver, which has rapid response. DDS, forming stable and sensitive operation performance. The peripheral circuit design of CD- 14 machine is accurate and elegant. In the signal processing and servo circuit, the newly developed chip CD7A is adopted, and the digital filter adopts DF7 chip. The signal is oversampled by 8 times, and then the third noise suppressor and the oversampled 192 times/bit digital signal are sent to DAC. The digital-to-analog conversion of this machine uses the well-known bit stream DAC-7 in the audio field. Each channel is equipped with TDA 1547 integrated circuit, adopts dual DAC, and eliminates in-phase noise through special differential channels. Two sets of DAC outputs are returned by marantz's unique HDAM high-speed voltage amplifier circuit to prevent the level error at both ends. Such a perfect circuit design ensures confidence and makes the sound quality of playback more pure and flawless. The machine is equipped with coaxial and optical fiber digital output terminals and XLR balanced output interface. CD- 14 player has mellow and fragrant timbre, slender and elegant high frequency, round and full middle frequency, rich elasticity at low frequency, and convincing sound density, texture and decomposition ability. It is a high-quality CD player worthy of recommendation.
Main technical parameters
Frequency response:10hz-20khz 0.2db; Signal-to-noise ratio:110dB; Dynamic range: 98dB；; Channel separation:110 db; Harmonic distortion: 0.0015%; Overall dimensions: 458mm×110mm× 369mm; Weight 1 1kg.
Market reference price: 8900 yuan.
Marantz CD- 17ki
This machine is based on marantz CD- 17 series and developed by Ken Ishiwata, the head of audio technology of the company. Mr. Ishishima personally improved it into a high-end signature version? Ki- signature CD player. This machine is superior to CD- 17 series in the use of components and sound effects, and has been rated as the most worthwhile model by many audio magazines. CD- 17ki streamlined ultra-thin. The golden champagne panel is only equipped with a display screen, magazines and seven round buttons. The trademark of "Marantz" is a concave font directly stamped, which is quite novel. The transmission mechanism of this machine adopts Philips' advanced CDM 12. 1+0 turntable, and the low-noise digital servo control adopts SAA7372 chip, which can accurately and quickly scan the data on the record. The digital-to-analog converter composed of Philips TDA 1547 and SAA7323 is used in the circuit. This DAC named DA7 has high resolution and high transparency. The analog output still uses the fast response HDAM circuit, which can faithfully reproduce the transient and dynamic contrast that is difficult to handle in music. As a signboard machine, its internal structure and materials are more exquisite, and the power supply part adopts a ring transformer with high permeability; ELAN gold audio capacitor and precision color ring resistance are all over the whole machine; The bottom plate, back plate and inner partition plate of the casing are all plated with copper.
CD- 17ki player can play all kinds of music freely, the high-frequency part of the range will not be too bright, the demonstration of violin and triangle is gorgeous and clear, and the sharpness of metal is less; The intermediate frequency is round and soft, with good texture and density, which sounds relaxed and moving; The low frequency is rich and powerful, and the sense of space is more prominent, sweeping away the fat phenomenon that is not free and easy enough. This machine is the first choice for lovers who deliberately pursue music performance.
Main technical parameters
Frequency response: 20 Hz-20 kHz 0.2 dB; ; Signal to noise ratio:106 db; ; Dynamic range: 97dB；; Channel separation:103 db; ; Harmonic distortion: 0.002%; Overall dimensions: 458 mm× 83 mm× 315 mm; Weight: 7.8 kg
Market reference price: 6800 yuan.
Marantz CD- 19a
This is a mid-range model recently launched by Marants Company. It absorbs some technologies of the company's CD- 17 series machines, and simplifies and improves the circuit structure. The machine adopts Philips linear tracking CDM- 12. 1 movement on the transmission mechanism, and is equipped with a new low-noise digital power driver, which has good seismic performance and fast and accurate song selection. CD- 19A is a big step higher than CD-63 in the use of components and sound quality. This machine adopts high-quality low-leakage EI power transformer, and the main filter capacitor and signal output capacitor are upgraded to "ELAN SILMIC" audio electrolysis, which usually appears in high-priced machines. In terms of digital circuit, the machine adopts 1 bit D/A converter. After the digital signal is filtered by NPC digital filter chip, two SM5872BS chips are used to decode the left and right channels respectively, which effectively reduces the conversion error and enhances the reproduction ability of weak signals. The analog output follows two well-known metal packages in marantz for many years, and is engraved with the word HDAM, which has the characteristics of wide overclocking, large dynamic and high resolution. The whole machine is equipped with 1 set of coaxial and optical fiber digital outputs, which provides space for external decoder to upgrade equipment.
CD- 19A has a good musical taste, excellent sense of energy and ability to analyze details, especially in the middle frequency band, which inherits the gentle and sweet temperament of Maranz. If measured by sound effect and price, this machine is a CD player with high cost performance.
Main technical parameters: frequency response: 20hz-20khz 0.3db; ; Signal-to-noise ratio:110dB; Dynamic range: 97dB；; Channel separation:103 db; ; Harmonic distortion: 0.0015%; Overall dimensions: 454 mm× 82 mm× 313 mm; Weight: 7.8 kg
Market reference price: 4500 yuan.
Marantz CD-4000
This machine is a low-priced CD player put on the market by marantz Company, and the price is only about 2,000 yuan, which can meet the needs of ordinary lovers who like listening to music. This machine has a novel appearance and excellent manufacturing technology. There is a convex arc cover on the left side of the panel, and a clear and beautiful dot matrix display screen is used in the middle. The movement adopts VAM 120 1 pickup system provided by Philips, the parent company, and is equipped with low-noise digital drivers commonly used by many mainstream models in marantz, which ensures accurate and stable operation. There is a 1bit digital-to-analog converter in the machine, and the chip is newly developed TDA 1545. In the decoding part, two SM5872BS chips are used to work independently on the left and right channels, which greatly reduces the nonlinear distortion. The analog part still uses high-speed voltage amplification circuit, which makes the conversion rate as high as 80 V/μ s. This series of optimized circuit design makes the background noise of this parity machine low, and its dynamics and clarity are impressive. The machine is equipped with a pair of analog audio outputs and a coaxial digital output interface.
CD-4000 can play beautiful and harmonious sound effects, with rich sense of quantity at low frequencies, which changes the shortage of low-priced bass books. The midrange is soft and smooth, and the treble brightness is better, but slightly sharper. The machine is cost-effective, which brings accurate choices to couples who don't want to spend too much money.
Main technical parameters
Frequency response: 20hz-20khz 0.5db; ; Signal to noise ratio: 98dB；; Dynamic range: 95dB；; Channel separation: 85dB；; Harmonic distortion: 0.0063%; Overall dimensions: 440mm×87mm×280mm；; ; Weight: 2.9kg.
Market reference price: 2000 yuan.
Sony CD player
1982, Sony Corporation of Japan and Philips Corporation of the Netherlands formulated CD specifications, and then developed the world's first CD player CDP- 10 1. As the inventor of CD player, its quality and performance are highly respected by audio enthusiasts. Sony CD player can stand out among many brands because the company strives for perfection in products and has rich experience in audio equipment development and advanced digital technology. "Digital Dream" and "Re-creating Brilliance" are the new directions and goals for Sony to develop digital audio products.
Sony CDP-XA7ES
Sony's development and contribution to high-end CD players are obvious to all in the industry, among which CDP-XA7ES, the top player of ES series, is a model of pure music. The internal structure and design are taken from CDP-R 10/DAS-R 10 split flagship CD player. The movement of this machine adopts "optical fixed mode" mechanical transmission device, that is, the optical laser head is fixed on the base. This retrieval mode makes the optical disc move with the movement of the machine, which reduces the pressure of the pickup. Compared with the traditional pickup movement mode, the speed of entering and leaving the box is light and moderate, and the signal reading is stable and accurate. At the same time, the high stabilizer of the optical disc is made of pure copper, which is pressed from above to reduce the vibration of the optical disc when it runs at high speed. The machine is equipped with its own original current pulse digital-to-analog converter in the circuit, which replaces the voltage pulse mode which is easily affected by the change of power supply and eliminates the noise brought by the calculation circuit. In addition, the application of full feedforward digital filter has made the machine excellent in sound quality. In the structure of the whole machine, the machine adopts a number of measures regardless of cost, such as copper plating on the inside of the chassis, which improves the shielding effect of noise reduction; The steel chassis and frame are made by casting and pressing, and the exquisite combined structure counteracts the vibration; The advanced R-type central power transformer is selected, and its shape and cross section are spherical, which not only suppresses vibration, but also controls the leakage of magnetic lines.
CDP-XA7ES is a dazzling advanced CD player. The sound it creates has high permeability and appeal, and it shows its unique elegance elegantly and beautifully with full lines. In particular, it is fascinating to reproduce faint sounds and details. The whole series has an extraordinary display.
Main technical parameters
Frequency response: 2 Hz—20 kHz 0.3 dB; ; Signal-to-noise ratio:119db; Harmonic distortion: 0.001%; Overall dimensions: 430mm×125mm× 375mm; Weight: 15kg.
Market reference price: 13000 yuan.
Sony CDP-xe 530
The machine has a stable and generous appearance and a good manufacturing process. It adopts a central turntable mechanism. Although it is a popular movement type, its performance is mature and its operation is very reliable. In addition to the common buttons such as play, stop and search back and forth, the panel of this machine is also equipped with a rotary program jump button, which is very convenient to operate and use. Sony has used some new digital technologies in this machine, such as 1bit pulse digital-to-analog converter, which has high resolution to audio signals. Using variable slope digital filter can make the sound level rich and natural. There is optical fiber digital output on the back of the machine, which can be used for external D/A converter or external MD machine for digital transcription. Although the price of CDP-XE 530 is only 2000 yuan, its function setting is more perfect than that of ordinary models with the same price, and its sound effect also has certain advantages. This player has a clear and bright voice, a good sense of atmosphere, pure timbre and certain strength. When playing solo songs and light music, it is not inferior to the CD player with higher price. The disadvantage is that the bass is a little loose and the treble is hard and lacks delicate hearing, but we can't demand that the model at this price can have comprehensive sound effects.
Market reference price: 2000 yuan.
Panasonic CD player
Since the first CD player SL-P 10 was launched in 1980s, Panasonic has actively carried out a series of technological innovations to meet the arrival of the digital age. The high-performance digital signal processor, MASH digital-to-analog converter, high-precision PLL circuit and AA output circuit used in CD player are all stunts of our company. The purpose of Panasonic's CD player is to "develop mute technology, provide high-fidelity listening experience and show the perfect processing of sound".
Panasonic sl-p2000
The appearance of the machine is golden champagne color, with piano boards on both sides. The front panel is made of 8mm thick aluminum alloy, and the layout on the panel is neat and standardized. Chassis structure adopts anti-vibration THCB? The exquisite appearance of the technology mixed structure base gives an excellent first impression. The laser pickup of this machine adopts a load floating optical system, a high-precision driving mechanism and a digital servo circuit, so that the recorded data can be read quickly and accurately. MASH 1bit digital-to-analog converter pioneered by Panasonic is installed in the machine, and high-efficiency noise shaping technology is introduced, so that the signal-to-noise ratio of the whole machine is improved to 120dB at one stroke, and the theoretical dynamic range is as high as 125dB. In order to improve the sound quality, the machine is also equipped with AA output circuit, high-quality digital weight reduction circuit and precision musical instrument sound quality differential circuit. These advanced circuit designs make the sound effect of the machine unique. SL-P2000 machine also uses materials for good sound. The power supply part adopts advanced R-core transformer and is equipped with Panasonic's famous "virtual battery" power supply system, which is similar to battery power supply. It is commendable that the newly developed mother series electrolytic capacitors are also used in machines. The capacitor has advanced electrolyte and aluminum foil structure to obtain good conductivity. In practical application, it can embody delicate music and produce vivid sound effects.
SL-P2000 maintains the warm and mellow timbre of Panasonic's advanced sound system. When playing back music, the sound is elegant and soft, the bass is full of volume, the tenor has excellent density and space, the sound is vividly restored, and the priorities are properly grasped, giving people a high-style sound effect.
Main technical parameters
Frequency response: 2hz-20khz1db; Signal to noise ratio:120 db; ; Dynamic range:110 db; Harmonic distortion: 0.0014%; Overall dimensions: 483mm×134mm× 332mm; Weight: 12.5kg
Market reference price: 9200 yuan.
Panasonic sl-pg 490a
In recent years, some well-known audio companies have launched low-priced CD players in response to market demand. Panasonic is also committed to developing various popular machines with high quality and low price, which has high market competitiveness, among which SL-PG 490A is the most representative model of the company. Shortly after the plane was put on the market, it was photographed by the British "What Hi-Fi?" The magazine was awarded the "Best Buy" award. SL-PG 490A has a novel shape, adopts a central magazine design, and the display screen is placed on the right side of the panel, making the operation more intuitive. The base of the machine is made of metal and engineering plastic, which can effectively isolate the seismic source and reduce the noise. The machine adopts a simple and stable turntable and is equipped with a servo circuit, which has good film reading performance and high error correction rate. This machine still uses MASH 1 D/A converter newly developed by Panasonic Corporation. This converter has low manufacturing cost, but its performance is very stable and reliable. SL-PG 490A has certain characteristics, such as mild and smooth voice, relatively balanced range, and won't feel tired after listening for a long time, so it can be applied to various music festivals. Due to the production cost, the sound of the machine is a bit dull and the resolution is a bit insufficient.
Market reference price: 1400 yuan.
Yayama CD player
The audio equipment produced by Yamaha Company has high technical content, and the new generation CD player has stable performance, beautiful sound quality and reasonable price. With rich experience in music, acoustics and digital technology, Yamaha's audio engineers developed PRO-bit? Accurate reproduction of original bits is a patented technology of our company, that is, the data of 16 bits on a CD record is converted into 20 bits, so that the resolution and continuity of audio tend to be perfect, and there is no sharp, cold and stiff digital sound caused by quantization error, and the sound effect obtained is as real as the original recording.
Yamaha CDX-993
The appearance of the machine is fresh and concise, the layout of function keys on the panel is neat and beautiful, the chassis adopts double-layer metal top cover and double composite base, and the mechanical structure designed by the company is used to prevent vibration, so that the weight of the whole machine reaches 9.6kg. The PRO-bit digital circuit group in the machine adopts YAC-5 14 chip independently developed, which contains filtering and shaping function. At present, professional recording adopts advanced 20-bit recording technology, but the music signal stored on the CD is still in 16-bit format. When music is transcribed to a record, some audio data will inevitably be attenuated. Yamaha's original bit accurate reproduction technology adds some additional information to the 16bit signal read from the record, which makes the waveform of the audio signal output by the converter closer to the characteristics of the analog signal. This fanatical handwriting makes the sound reproduced by this machine richer and more detailed, and the listening feeling is pleasant and soft. The output of the machine is equipped with Class A discrete power amplifier and sound fine-tuning circuit, which is helpful to improve the sound quality.
The sound is full and mellow, and the sound field is real. When playing vocal music and instrumental music, the high frequency is soft and smooth, but there is no loss of high frequency information. On the contrary, the audio details it plays are very good, giving people a natural listening style. Audio critics of several audio magazines in Japan spoke highly of the audio performance of this machine.
Main technical parameters
Frequency response: 2hz-20khz 0.5db; ; Signal-to-noise ratio:115db; Dynamic range:100 db; ; Harmonic distortion: 0.0025%.
Market reference price: 5000 yuan.
Yamaha CDX-393
This is a cheap CD player put on the market by Yamaha Company. The whole machine is fully functional and easy to use and operate. The machine adopts simple and reliable mechanical transmission system, equipped with Yamaha's original high-intelligent servo circuit, which has good sensitivity of picking up signals and stable operation. The machine integrates Yamaha's advanced technology in the circuit and adopts 1 bit digital-to-analog converter. This new D/A converter has the advantages of low manufacturing cost, small dispersion of accuracy and effective elimination of "zero-crossing distortion". The sound quality of CDX-393 is quite satisfactory, and the level of playing large-scale dynamic music is slightly inferior, but the sound of each frequency band is relatively balanced, the intermediate frequency density is good, the extension of both ends of high and low frequencies is not too wide, and the presentation of music details is good. Because of its low price, good sound performance and high cost performance, the machine was awarded a 4-star sound quality award by Hi-Fi Musick magazine in Sweden and a special recognition award by Audio Video magazine in the United States.
Main technical parameters
Frequency response: 2hz-20khz 0.5db; ; Signal to noise ratio:105 db; ; Dynamic range: 95dB；; Harmonic distortion: 0.003%; Overall dimensions: 435mm×96mm×273mm；; ; Weight: 3.5kg.
Market reference price: 2200 yuan.
Yamaha CDC-765
This machine is a multi-disc CD player from Yamaha Company. It uses a newly developed fully open tray. When this X-shaped changer extends outward, five CD records can be accessed at the same time. Its laser pickup adopts floating structure, without optical disc stabilizer and high intelligent digital servo system. Reliable balance and convenient operation. The machine also adopts a new Pro-BIT D/A converter, which has the ability to process 20bit signal data. After filtering and shaping before digital-to-analog conversion, the sound quality of the machine is pure and natural, and the reproduced sound is more realistic than the original sound recording. The machine has practical functions such as TOC memory, CD synchronous recording start-up, record prelude scanning, peak search, three recording editing modes, 10 direct track access, and random programming playback of 40 tracks. There are 1 optical fiber digital outputs on the back of the fuselage.
CDC-765 machine has rich and balanced sound and low sound dyeing. The overall sound quality is slightly worse than CDX-993, but better than other CD models of the company. 1998, this machine was rated as the best product of the year by audio-visual magazine. This machine has rich functions, convenient operation and good sound quality. It is the best choice for some computer enthusiasts who often change records and listen to music.
Main technical parameters
Frequency response: 2hz-20khz 0.5db; ; Signal-to-noise ratio:115db; Harmonic distortion: 0.0025%; Overall dimensions: 435mm×116mm× 388mm; Weight: 5.8kg.
Market reference price: 4500 yuan.
Runner CD player
Enthusiasts feel this way about audio equipment, some of which are fleeting; Some equipment is unforgettable and timeless. Because some famous manufacturers in Europe and America have their own experience and advantages in the development of CD player circuit structure, the method of sound correction is also unique, which makes many senior enthusiasts have a special liking for it. British Yajun is an audio brand that leaves a deep impression on enthusiasts.
Runner-up Alpha -9
This machine is the highest model CD player introduced by British Yajun Company. Its appearance is streamlined and curved, the model characters on the panel are gold-plated, and the dark gray appearance is elegant and generous. In order to get the CE mark? EU standards, internal structure, materials and technical standards are very standardized. This machine adopts French CDM- 14 pickup transmission system. The turntable has excellent performance, outstanding vibration resistance, balanced operation and low noise. The digital circuit in the machine adopts the DSP-56002 chip of Motorola in the United States, and has a built-in high-performance digital filter to transmit the digital signal with 64 times sampling and 24bit precision to the DAC. The machine adopts 24 bit/96 kHz digital-to-analog converter, and the special digital-to-analog circuit board is developed by Yajun Company and the famous British professional audio manufacturer DCS after two years of joint research and development. The original "DCS Ring DAC" technology and HDCD decoding function significantly reduce the background noise of the signal and improve the resolution of fine information by times. The multi-layer circuit board in the machine is designed to shorten the signal channel as much as possible, and its high-power sealed power transformer and multi-channel regulated output supply power to the digital-analog circuits separately, which effectively reduces the crosstalk between the digital-analog circuits.
When the Alpha-9 player plays music, it gives people the impression that it is original, spotless and sweet. Although the performance parameters given by the manufacturer are not very high, the rich musical charm is warm and cordial when playing music, and the range runs through a very clear sense of airflow. Natural, comfortable and exquisite sound effects can conquer the audience. The year the plane was put on the market, it was the British "What Hi-Fi? Audio magazine was rated as a 5-star product.
Main technical parameters
Frequency response: 20hz-20khz; ; Signal to noise ratio:105 db; ; Output level: 2.3Vrms；; Overall dimensions: 430mm×85mm×290mm；; ; Weight: 4. 1kg.
Market reference price: 9500 yuan.
Runner-up Alpha -7
This machine adopts the traditional design of Yajun company's products, and its appearance is exactly the same as the company's top machine Alpha-9. The movement still adopts French CDM- 14, and its high-speed optical head is shielded by metal casing, which improves the signal reading ability and signal-to-noise ratio to some extent. The machine uses a multi-bit DAC chip. It is worth mentioning that its D/A conversion circuit board adopts plug-in card mode, and users can easily upgrade by replacing different grades of DAC boards. Although this method is common in computer circuit structure, it is rarely used in CD players. The machine also has optical fiber and coaxial digital signal output interface.
The most desirable feature of Alpha-7 machine is that it can match the accurately optimized circuit design with the high-quality components in key components to achieve the best cost performance. This machine can play music with sufficient output and smooth rhythm. Accurate positioning of vocal instrumental music. Its slender and clean high notes make listeners not feel the lack of information in the live atmosphere. The midrange is compact and lasting, and the bass dive is calm and orderly. Compared with Alpha-9, the overall sound quality still has a certain gap, but it can meet the needs of audio lovers.
Main technical parameters
Frequency response: 20hz-20khz; ; Signal to noise ratio:100 db; ; Output level: 2.3Vms? Overall dimensions: 430mm×85mm×290mm；; ; Weight: 3.6kg.
Market reference price: 4800 yuan.
Runner-up FMJ-CD23
This is a top machine recently put on the market by Yajun Company. Our factory has carefully produced this brand image CD player with exquisite appearance and excellent internal quality. The panel is made of 8mm thick aluminum alloy, and its silvery white appearance is full of modern colors. This machine is equipped with the best digital-to-analog converter developed by our company in cooperation with the digital professional manufacturer DCS, and is equipped with an improved 24-bit digital filter and advanced circuit design, which makes the sound effect extraordinary. Compared with Alpha-9, this machine has by going up one flight of stairs in internal materials, such as special high damping chassis structure, which can prevent external radio frequency interference and further improve sound clarity. High-quality Teflon main circuit board and carefully selected fever-grade components make the audio layering richer and smoother, and the timbre sweeter and more soothing; The newly designed high-quality large-capacity transformer and multiple groups of regulated power supplies ensure the deep and rich sound range of the whole machine. The sound effect of FMJ-CD23 player is better than that of Alpha-9. The playback sound shows the unique noble atmosphere of British high-end audio, and its elegant and crystal-clear sound seems to have been polished, which makes people feel warm and delicate when listening to LP records.
Market reference price: 1 1500 yuan.
Britain, England
Nad-524 CD player
NAD-524 has a medium gray appearance, simple and bright board layout and practical basic functions, which all reflect the style of NAD products. The turntable structure of this machine is firm and stable, and the reading speed is fast, but the noise of mechanical transmission seems to be loud. The circuit design of this machine has a high starting point. Digital-to-analog converter adopts 24-bit chip of American BB company, and analog output stage also adopts high-quality components for Class A amplification, which is really valuable in popularization machine. The power supply part of the machine uses a large-capacity ring transformer, but most of the current parity machines use cheap common laminated transformers, which leads to poor sound quality. It can be seen that NAD pays more attention to the design and investment of the core part of the machine, which is a bright spot and achieves a multiplier effect. The machine is equipped with coaxial digital output terminals, and a full-function infrared remote controller with strange appearance is attached at random. The sound quality of NAD-524 playback is excellent. The bass is deep and powerful, with a certain sense of speed and control. The crisp and beautiful tenor is very attractive, the tenor is slightly thin, and the tenor is hard when playing piano, orchestra and vocal chorus. This machine has the characteristics of true and meticulous sound quality. It can be said that NAD-524 is the first choice today when the cost-effective AMC CD-6 and Philips CD-95 1 disappear.
Market reference price: 3400 yuan.
British AMC-CD6 CD player
This machine is a cheap machine assembled and produced by a British brand in Taiwan Province Province. In the second year after it was put on the market, it was published by the British audio magazine What Hi-Fi? "Be listed as a five-star list. The machine adopts Philips CDM-4 transmission system, which is durable and has excellent shock absorption performance. This turntable is the only movement of Philips that can adjust the output of the laser head, and its performance is better than the current CDM- 12 movement. No matter what kind of music you play, you can reflect and master the characteristics and connotation of music and accurately capture every note. Although CDM-4 has been discontinued, many enthusiasts still have a good impression on it. The circuit design of this machine is simple and reliable. The digital-to-analog converter adopts Philips SAA7220 "bit stream", which is slightly lower than SAA7323 of Marans CD- 17ki. The analog output is amplified by 5534OP, and the capacitor is Nichicon advanced Muse model. The whole machine is equipped with coaxial and optical fiber digital output. The actual sound effect of AMC CD6 is obviously higher than the given performance parameters. The reproduced sound is mellow and sweet, the sound bottom is warm and sweet, the parts are relaxed and dense, the orchestral interpretation is full of luster, and the percussion music is very dynamic. In addition, its reasonable price also makes audio lovers excited. But unfortunately, this cost-effective CD player has been discontinued and it is hard to see it in the market.
Main technical parameters
Frequency response: 20hz-20khz 0.5db; ; Signal to noise ratio: 95dB；; Dynamic range: 90dB；; Sound channel separation: 90dB；; Harmonic distortion: 0.003%; Overall dimensions: 430mm×112mm× 288mm.
Market reference price: 3200 yuan.