Since its release in 2014, the MP-D2 decoder has been unanimously praised by users at home and abroad, and even some users take it to the big-name friend DAC whose PK is many times more expensive than it. The MP-D2 is still invincible, even in Many aspects of sound quality clearly surpass these high-priced DACs. After 4 years of continuous upgrade and improvement, on November 10, 2019, we officially released the new upgraded MP-D2 MK3 Deluxe Deluxe Edition.
The improvement of MK3 Deluxe Edition over MK3
1. Cancel the optical input that is not commonly used by audiophiles, and increase the Bluetooth HD APTX HD input.
2. The core linear voltage regulator chip is increased from two to six, and the left and right channel DAC chips are fully independent voltage regulators, which also allows ES9038PRO to be connected to a high frequency clock above 40Mhz (such as 60Mhz atomic clock, 100Mhz OCXO constant temperature clock), and Under the external clock, ES9038PRO can support DSD512 format.
3. Improve the working current of the signal tube, optimize the working state, and improve the sense of sound density and moisturization.
4. Re-arrange the layout and optimize the PCB routing, reduce the mutual interference of digital and analog signals, and the background is darker.
5. Reduce the output level when using E88CC and 6922 tubes to 2.5V, to avoid compatibility issues with individual amplifiers with poor input performance when using such tubes. Now when the 6H6 tube RCA output is used, the two gain switches on the back are set to the H position. When using E88CC, 6922, 6DJ8 tube RCA output, dial L position. Users who need to use the XLR output must use E88CC, 6922, 6DJ8 type pipes, and dial H.
6. Coaxial and AES input upgrade from the original maximum support 96Khz to 192Khz.
7. All rectifier diodes are upgraded to the latest low-loss, high-speed series from American Vishay, which further improves the sound quality.
8. The filament power supply is changed to a balanced landing, and a small-capacity filter capacitor is also added to reduce the noise floor of individual bad tubes.
9. The high voltage filter capacitor of the tube is added with high quality MKP capacitor filter to further improve the sound quality.
Sound characteristics
1. The sound field is wide, deep and wide, and the three-dimensional sense is strong.
2. The air is full and the sound is elegant.
3. The music is full of taste, delicate and touching, which makes people never tire of listening.
4. Zero glitch, silky smooth.
5. High analytical power, delicate and meticulous.
6. Dynamic and powerful, with sufficient low frequency. Never be soft or compressed.
7. Real and natural, thick and comfortable.
Technical highlights
1. Adopt American Linear Technology and Texas Instruments flagship ultra-low ripple linear voltage regulator LDO chip, the integrated ripple is less than 5uV, to maximize the dynamic range and detail analysis.
2. Adopt Japan AKM low time base error digital receiving chip, American SiTime low phase noise clock to reduce time base error. Both coaxial and AES inputs use digital isolation transformers to isolate front-end noise.
3. All rectifier diodes adopt American Vishay flagship high speed and low loss series.
4. The total filtering capacitor capacity exceeds 80,000 uf, which is more powerful than general power amplifier filtering. The power quality is greatly improved.
5. The PCB circuit board has undergone 7 engineering proofs to improve the layout and optimize the routing.
6. The high-voltage power supply of the electron tube is equipped with a high-voltage voltage stabilizing circuit, which prolongs the life of the electron tube and makes the power source more pure.
7. The USB module uses the latest XMOS U208, and the calculation speed is twice that of the previous generation U8. The Bluetooth input uses Qualcomm's flagship CSR8675 APTX HD chip.
8. The USB module I2S output has a digital isolation circuit to isolate the digital interference introduced by the computer.
9. The USB module uses the American SiTime low phase noise clock, which can be optionally equipped with Crystek CCHD-575 series or CCHD-957 series femtosecond clock (contact customer service for optional).
10. The USB module provides an external clock input. AK4490 and AK4497 can use 3.3V output 22.5792Mhz or 24.576Mhz atomic clock or OCXO constant temperature clock, ES9038PRO can use 3.3V output 22.5792Mhz to 100Mhz atomic clock or OCXO constant temperature clock.
11. Electron tube rectification, switch switching supports 6.3V series (6Z5P, 6X5) and 5V series rectifier (5AR4, GZ34, 5U4G, 274B, 5R4). The analog output part does not have any op amps, full tube output, supports 6.3V filament series (6H6, 6H30pi, 6922, E88CC) and 12.6V filament series (12AU7, 12BH7, E80CC) signal amplification tubes.
12. The independent amp part adopts the American MAXIM professional amp chip, inserting the earphone and automatically disconnecting the pre-stage output function.
13. High-power 150W and 100W double toroidal transformers provide independent multiple sets of power supply, 100W is responsible for the digital part, and 150W is responsible for the analog output. Strive for the purest and extremely high margin power supply.
14. The world's first user-replaceable DAC chip and output coupling capacitor design. DAC chip modules can be continuously upgraded and replaced. New models of DAC chips will be released next year. We will introduce corresponding DAC modules for users to plug and upgrade themselves. Users can change the output coupling capacitors of different brands and levels to customize different timbre performances.
15. The MCU firmware downloader is included, and users can upgrade the firmware to support more future DAC modules. Users can enjoy the latest DAC chip without changing the machine.
16. USB input supports up to PCM384Khz, DSD256 (AK4490), DSD512 (AK4497), DSD128 (ES9038PRO internal clock), DSD512 (ES9038PRO external clock).
17. Zero negative feedback analog circuit design.
18. RCA and true fully balanced XLR fixed level output, with high and low level adjustment.
19. With independent RCA pre-output interface
20. Manufactured with original genuine fever-level resistance-capacitance components, American Vishay resistance, Obbligato Gold coupling capacitor, ruby, Japanese brand capacitor, Sibi, ELNA and other fever capacitors.
21. High-quality Taiwan gold-plated terminals, Swiss XLR terminals and power filter sockets.
22. Aluminum alloy chassis, aluminum alloy cone shock absorber feet
Technical index
Frequency response: DC to 50khz
DR/SN: 127 dB
Output level: 5V balanced XLR, 2.5V single-ended RCA
Input interface: coaxial, AES, USB. USB supports up to PCM384Khz, DSD256 (AK4490), DSD512 (AK4497), DSD128 (ES9038PRO internal clock), DSD512 (ES9038PRO external clock). The remaining inputs support up to PCM 24Bit 192Khz. Bluetooth APTX-HD, APTX, AAC, SBC.
Signal tube
6.3V series: Soviet 6H6 (standard), 6n11, 6H30pi, E88CC, 6922, 6DJ8.
12.6V series: 12AU7, 12BH7, E80CC.
Rectifier
6.3V series: 6Z5P (standard), 6X5.
5V series: 5R4, 5AR4, 5U4G, 5Y3, 5BC3, 274B, GZ34
Volume: W 34.5cm x D 38cm x H 15cm
Gross weight: 12.5 kg
