XUELIN IHIFI-812V2 WM8740 24bit/192KHz 8GB internal AMP Portable HiFi Music Player
- IHIFI812V2 top portable music player (built-in WM8740 decoder, AD8397 amp)to create the mostserene background, clear, sweet, wide sound field the sound!
- Portable audio player line system, while not complex, but the difficulty is to do, such as the signal to noise ratio improved from 70db to 90db, probably as long as one day, but from 90db to 95db upgrade may take 3 months. Each capacitor model, each resistor, and even the direction of each signal line, we have done a lot of experiments, only pcb design proofing has reached more than 10 versions. Even at the cost of raw material, widely used in the industry's top components.
- Amp: rail-to-top high-current op amp AD8397, the output current of up to 300MA, 69MHZ bandwidth, 25 ohm load switching speed 53V/US.
- Actual audition the sound quality excellent
- the only drawback is the large consumption of this chip affect the system life.
- IHIFI812 Right Mark Audio Analyzer test report
- Testing chain: External loop (Line Out - Line) Sampling mode: 16-bit, 44 kHz
- Frequency range: +0.07, -0.61
- Noise level, dB (A): -99.4
- Dynamic range, dB (A): 91.3
- THD,%: 0.0018
- IMD +%: 0.0090
- Stereo separation, dB: 82.3
- IMD (10 kHz),%: 0.008
- It has a built-in rechargeable Li-ion battery that can be charged only through 12V dedicated charger. While connecting to the computer, the battery cannot be charged through USB line.
- IHIFI812 Earphone output power: 450mW/16 Europe; 225mW/32 Europe; 99mW/150 Europe; 50mW/300 Europe.
- Storage capacity :8GB built-in
- Extended storage: Mini-SD/TF card( can expansion up to 32 GB)
- Analog output: LINE output and HEADPHONE output
- Battery Type: Lithium Polymer electromagnetic
- Life time: 12 hours long standby, depending on the sampling rate changes
- Charging time: 1.5-3 hours
The main structure:
- Audio coupling: muse goddess art (two)
- Filter: Sanyo Solid State (five)
- Main filter: Philips Silver Blue Shell
- lpf capacitor: Panasonic SMD film (5%, not an ordinary soldering iron)
- Amp: ad8397ardz(High-current rail to rail op amp)
- Decoding: WM8740(one)
- lpf: ad8672
- Src: ad1896(11.2896 local clock, shaping and frequency stabilization
- Net weight: 0.28kg
- net volume: 118 * 75 * 26mm (excluding knob)
- Packing size: 80 * 100 * 140mm
- 2.4-inch color TFT LCD
- Supported operating system:Windows98/SE/ME/2K/XP,Mac OS 10,Linux2.4.2
- Operating environment:-5 to 40 ℃
- Supported formats: WAV APE FLAC AAC WMA OGG MP3 while the perfect cue file support (will lead to varying degrees of noises, and even make the product cannot play, please guarantee the download music files of MP3 player are excellent without damage)
- WAV AUDIO
[compressed]: 4bit MS-ADPCM,IMA-ADPCM
- APE AUDIO
[Codec]： Ver. 3.95, 3.97, 3.98, 3.99, normal and fast
- FLAC AUDIO
- MP3 AUDIO
[Codec]： MPEG1/2/2.5 Audio Layer 3
[Bitrate]: 8~320Kbps, CBR and VBR
- AAC AUDIO
[Codec]： ADIF ,ATDS Header AAC-LC and AAC-HE
- WMA AUDIO
[Codec]： Version 7, 8, 9，
- OGG AUDIO
[Codec]： Q-1- Q10
- Power: Li-ion battery
- Storage capacity: Flash 8GB/16GB/32GB(External TF card maximum supports 32G)
- Port:USB2.0(FULL SPEED)
- IHIFI-812V2 Music player
- USB communication cable
- 110V-240V dedicated charger
- user manual
- Carrying bag
Due to the impact of the COVID-19 pandemic, global international shipping will delays. The delay at our Hong Kong post office is very serious, so we have changed to other fastest or most efficient international shipping. Now the normal estimated delivery time may be delayed by about 1-2 weeks. In some countries where is higher free-tax rate, we will provide free courier service as much as possible.
All listed items will be shipped though Registered Airmail with tracking number if there is no extra shipping method option listed or shipping description in the product page.
Economy shipping: Will be shipped without tracking number.
Registered Airmail : Will be shipped via such as Hong Kong post , Deutsche Post , Netherlands Post , Singapore Post, you can leave us a message if you have any requirement about the shipping method .
It will be shipped via Hong Kong Post by default, Europe countries can choose to be shipped via Deutsche Post or Netherlands Post, it is also FREE, pls leave us a message if needed.
Express service: Will be shipped via DHL/EMS/UPS/FedEx