MF02S ES9038Q2M DSD Bluetooth 5.0 APTX-HD UAB DAC HiFi Audiophile DAP Portable Lossless Music Player
It all starts with power
We never challenge anyone, never surpass anyone, and never stop at others. We just want to surpass ourselves again and again and strive to improve ourselves.
MF02S is cost-effective in terms of power supply. The motherboard uses a 5V boost power supply, 2 LT3529 low-noise power supply chips, 3 TI ultra-low noise LDO power supplies TPS735, and the audio board uses 2 TPS375 to provide digital and analog power to the ES9038Q2M(PSRR: 68dB at 1kHz frequency), 2 LT3042 provide audio power, (PSRR: 79dB at 1MHz frequency). The op amp power supply is powered by ±7V, which is boosted by LT3471 to ±8V and then regulated to ±7V by 2 ultra-low-noise LDO power chips respectively, which achieves low power supply noise while responding quickly. (Note: The larger the PSRR, the better the suppression of power supply noise).
Parameters are just numbers
Being in the darkness and tranquility of the deep sea, the expansive sense of presence is the good experience we want to give you.
We have always disliked putting dual DACs in a limited space. This is not to save costs, but we prefer to reserve space for power supplies and audio amplifier circuits. Compared with MF01, what upgrades does MF02S have in terms of audio circuit?
At the amplifier circuit and headphone amplifier circuit level, the MF02S regular version uses 2 OPA1612 + 2 HDAM9988 + 2 OPA1622, of which OPA1612 is responsible for IV conversion. Because of its high precision and ultra-low BIAO voltage, it can effectively remove the deviation after DAC output. Set the voltage to reduce popping noise after starting up. The second stage of the circuit is the amplifier circuit, which is completed by HDAM9988. HDAM9988 can make the sound warm and sweet, and filter out the burr of digital decoding. The third stage is the headphone amplifier circuit, which is completed by OPA1622, which has +145mA/-130mA current drive capability. When powered by ±5V, driving 32Ω and outputting 10mW, THD+N can reach to -116dB, which is much better than the TPA6120A2 used in MF-01 under the same conditions with THD+N 101dB. Because of this, although MF02S The driving force under the single-ended output condition is not as good as that of the MF-01, but the control and responsiveness are improved a lot, which is quite friendly to in-ear headphones. Of course, for headphones that require high driving power, the balance of MF02S still has excellent driving power. So there is no need to worry about the driving problem.
The DAC chip used by the MF02S is a single ES9038Q2M decoder chip. With the support of the above-mentioned power supply circuit and audio circuit, its performance can be fully released. Regarding our ability in this area, we believe you also feel something in MF-01.
The volume encoder of MF02S uses imported Panasonic 32 positioning point encoder, which has a long life and a good sense of paragraph. The volume knob adopts a delicate knurling process, and the moment you touch it, you can turn it a few times more unconsciously.
The 6063 aluminum CNC precision carving process, the anodized aluminum sandblasting is delicate and smooth to the touch, and the stable and solid body is durable.
Have clean and comfortable listening, simple and easy-to-use operation, smooth non-touch screen system. A good player does not need to be too complicated.
You don't need to care about the parameters, but you can't let it go. It's possible to improve. In a limited space, it is so meticulously crafted that it can't be added.
Crossover audiophile player, self-nirvana
Two-way high-definition Bluetooth, AUX car mode, external sound card DAC, balanced amp output.
Color: light gray
Body material: 6060 aluminum
Screen: 3 inch 480*854 IPS non-touch screen
Audio formats: WAV, FLAC, APE, MP3, AAC, M4A, ALAC, DFF, DSF(with firmware update, continuous upgrade)
3.5mm PO/LO, 4.4mm balanced
3.5mm single-ended : 3.5Vrms
4.4mm balanced : 7Vrms
3.5mm single-ended : 142mW(32Ω);
4.4mm balanced : 284mW(32Ω)
3.5mm single-ended : 112dB,
4.4mm balanced : 118dB
Frequency response: 15Hz-45kHz
Main frequency: 480Hz
IV Op amp: OPA1612*2
Main Op amp: HDAM9988*2/HDAM2627*2
Audio power: ±8V + ultra-low noise LDO to ± 7V
DAC power: ultra-low noise LDO*4
USB DAC: support
Firmware upgrade: support
Battery capacity: 3000mAh
Play time: 6.5 hours
Charging time: 2 hours
Built-in memory: 32GB
Extend memory: support up to 256GB
MF02S High configuration version
Decoding chip: ES9038Q2M
Power supply: LDOx4 combination DAC power supply
OP amp: HDAM2627x2
High-end amp: OPA1622x2
High voltage power supply: plus or minus 7V low noise L DO audio power supply high speed
Bluetooth: Bluetooth 5.0 APTX-HD
All listed items will be shipped through Registered Airmail with tracking number if there is no extra shipping option or shipping description at the product page.
Economy shipping: Will be shipped without tracking number.(because of the covid-19 affects, economy airmail parcel is easy to lose, pls place the order by choosing registered airmail, or you purchase one more product , we can send together via registered airmail)
Registered Airmail : Will be shipped via such as Hong Kong post , Singapore Post, you can leave us a message if you have any requirements about the shipping method .
We can ship the parcel to Canada and Europe countries via tax-inclusive shipping method with extra charge, pls leave us a message if needed.
Express service: Will be shipped via DHL/EMS/UPS/FedEx,Canada and Europe countries will be shipped via tax-inclusive shipping method for free.