With the development of high-speed Internet, people can download more and more lossless music. Unfortunately, most portable players cannot get the full potential of these high resolution lossless music files. The HiFiMAN HM-801 player was designed for replaying high quality lossless music files and getting hi-fi grade sound quality. It can play most music formats, such as mp3, wav, flac, ape, aac, ogg, wmv, etc. It can also support gapless playback by using cue playlist.
The HM-801 uses an SD card to store music. Currently the maximum volume of the SD card is 32GB. Because the SD card is small, people will be able to have several cards together and do not have to worry about limited built-in memory size. The battery is also modular-removable. Lithium batteries will die in one or two years, so customers will be able to buy another battery and change the battery themselves.
The HM-801 have two high-end DAC chips, Burr-Brown PCM1704, to get hi-hi grade sound quality. In the LPF and buffer part, expensive OP627 chips have been used in each channel. The HM-801 can connect directly to amplifiers from line output and bypass the headphone amplifier circuit. When comparing sound quality to desktop CD players, the HM-801 can easily beat entry-level desktop CD players. Even compared to some high-end source, the HM-801 is not bad at all, especially in midrange performance, such as vocal and violin.
To satisfy most portable audio fans, the headphone amplifier part of the HM-801 is a modular design. In other words, the whole piece of the headphone amplifier board can be removed from the dock (called GanQi Bay) on the back side of the player. Customers will be able to get the amp board module from a different amplifier builder so that different amp modules will fit different tastes.
The player also can be used as a USB DAC and coax DAC with a built-in headphone amplifier. It can connect to a USB port and play music directly from the computer. It also can connect to a coaxial output from an inexpensive source, such as a DVD player, to upgrade the source system. The retail price is currently $790.
Modular Design: Modular Amplifier Bay (Named GanQi Bay) and 14.8 volt Lithium Polymer Battery Bay
Memory: SDHC Card
DAC function: Coaxial (44.1kHz, 96 kHz) , USB DAC (16bit, 48kHz)
DAC Chip: Burr-Brown PCM1704U (for Player, Coaxial and USB) ; Op-Amp: OPA627
Size: 114 mm *78mm * 25.5 mm or 4.49 * 3.07 * 1.00 Inch
Output: Headphone out; Line out
Exchangeable Module Battery Life : 7 to 8 hours (Depending upon which Modular Amplifier board is mounted)