XUELIN H7 Dual ES9038Q2M DAC HiFi USB Sound Card Headphone Amplifier for Android Mobile Phone/iPhone
XUELIN H7 decoding amp, mobile phone becomes high-end player in seconds
More and more mobile phones do not have a headphone jack, but you are not satisfied with the Bluetooth sound quality
High configuration, dual ES9038Q2M/SA9227, asynchronous clock
Probably the best decoder at the same price
Two years and after more than 10 times modifications, Xuelin took care just for a little bit better.
Dual ES9038Q2M DAC
One is not enough, then two! ESS9038Q2M provides 129dB S/N and 120dBTHD +N. The two-chip in parallel is a basic respect for the audiophile spirit.
SA9227 Asynchronous Clock
The conventional decoding scheme uses a 12MHz crystal frequency division, which is not divisible by 44.1 and 48K, and only an approximate value can be obtained at the top. This is where the sound fragmentation comes from. We use 45.1584M/49.152M asynchronous dual clock, corresponding to 44.1K and 48K precise decoding.
CD format: 45.1584/44.1 = 1024 k
DVD format: 49.152m /48K=1024
It is no longer difficult to make bricks without straw
Full-architecture portable decoding, comes with 2900MAH power supply, you don't have to take power from the mobile phone and worry about battery life, but can only use micro-power DAC and CLASS D amplifier.
Powerful soft control system
XUELIN put in nearly 500 hours of code development, and almost no decoder has ever been so detailed and multifunction.
USB connection detection
Real-time electricity detection
Charge insertion detection
Low power protection
Screen saver and wake up
Real-time bitrate detection and display of files
Filter selection and setup
Global volume control and display
Software startup and shutdown
Earphone impedance detection
Automatic power matching
Unplanned all-in-one alloy CNC shell, 80 * 80 * 17mm, surface oxidization black, hyperboloid 2.5D glass, minimalism ID fulfillment extraordinary feeling, not only good sound, but also good looks.
Full platform full scene
Take over the original sound card, through the USB interface from the source data clock reorganization, sound quality improved ten floors. It can be applied to the Apple, Android, and tablet. It can also be used on laptop and desktop computers. Can be bundled mobile phone use, can also be connected to desktop computer.
Model: XUELIN H7
Size: 80-80 * 15mm
Shell: CNC aluminum alloy polished sand black
Double-sided 2.5D glass face plate Software Main copy: STM32F030C8T6
Display: 128 * 32mm, 0.91 inch white light OLED display
USB codec: SA9227 (9123) DSD codec
Audio codec: ESS9038Q2M * 2
LPF Speaker: SoundPlus "Precision Sound Release OPA2134
Earphone Speaker: track to track 310Ma AD8397
Importing and exporting (p-p):
LOW (O-32 ohm) Single end 2.9V Equilibrium 5 8V
MID (32-150 ohm) Single end 4.1V Equilibrium 8.2V
HIG (150-100 ohm) Single end 6.8V Equilibrium 13.4V
Distortion: (15KLPF 1kHZ Distortion-30dB Volume) 0.0055%
Signal-to-noise ratio; 112 dB (1KHZ, 2V-VPP, RL = 1k)
Frequency response: 20-20kHz + 0-0.035dB
Battery: 2900MAH 3.7V
Charging: 5V 2A USB Charger
Will be shipped via DHL , TNT or FedEx such express service , If you have any question about the shipping ways , please feel free to contact us .
our telephone number when you pay .so we can ship out your item in the first time .
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.