Quloos QA661 User Manual - page 3
QA661 User’s Guide Quloos
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1. User Instruction
(1).SD card is supportive of three-level directory and two-level folder, e.g. Root directory, Parent
file folder/Sub-file. As for SDXC card, it is necessary to be formatted into FAT32 file system by
DiskGenius.
(2).SD Card is supportive of hot plugging, but please hold while deleting files, which will
damage the card.
(3).Make sure that CUE file and the whole track file are saved under the same folder. The song
name of the CUE FILE parameter is consistent with the corresponding file name of the whole
track file (including the suffix).
(4).As for the incompatible sampling resolution, sampling frequency or compressed level, such
as single track, 24bit/192KHz FLAC, APE compressed level above HIGH, it will be muted for
5s and skip to play the next song.
(5).If it shuts down while playing WAV or DSD, it is mostly due to SD card issue, please format
the SD card by SDFormatter software.
(6).DSD playing is supportive of DoP Agreement, which needs external DAC supportive of DSD
for SPDIF.
(7).DSD Playing is unsupportive of DST64 Code. Please convert it into DSD64 code by relating
software.
(8).While connecting QA100, no sound is released while playing DSD. QA100 is unsupportive
of the input of DSD signal.
(9).Please visit the official forum www.qlshifi.com/bbs for more instructions.
2. Product introduction
2.1 Overview
QA661 is the latest high-end digital disc that QLS Hifi designed through many years’
technological accumulation. The tone quality has been further improved in terms of the
presentation of minor signal, sound cleanliness, richness and looseness. QA661 has super
real-time software framework, precise circuit isolation design, QLS latest power handling
technology, new generation 0 Jitter clock and digit handling circuit. These innovative
technologies guarantee HI-END super low Jitter digital output and explore the full potential of
your system.
2.2 Storage Medium
SD Card, supportive of SD/SDHC/SDXC,FAT32 file system. The max capacity is 128G.
2.3 Audio Format
QA661 is supportive of the following formats
l WAV :16/24bit,44.1~192KHz;