QA860 HiFi Digital Lossless Music Player
- QLS QA860 HiFi digital lossless music player is
QLS-HiFi＊stop line digital music playback equipment that
integrated digital music player, DAC and headphone
amplifier altogether. QA860 is based on the hot QA660
digital music player with dedicated improvementon the
digital output circuit, along with the DAC and headphone
amplifier module which we spent over 2 years on
developing and continuing optimizationthrough testing
more than 10 major hardware version.
- The single threaded software framework, the
extreme-low jitter clock process circuit, the digital /
analog completely separated power supply loops and full
isolated mounting rooms for each module are the keys for
QA860 to enter into the Hi-End world with far beyond a
lot of Hi-end level desktop CD players.
The Single Threaded Software Framework
QA860 implemented QLS-HiFi＊s unique proprietary
technology 每 the single threaded software framework.
This technology ensured ultra-low jitters and high
accuracy in playback of digital music by occupying the
whole CPU with the single music reading and decoding
program during the music playback.We keep it simple as
always for supporting the simplest SD media cards only,
however on the other hand we make every attempt to
improve the back end qualities so providing the best
value to againstthe priceto the true audiophiles. QA860
is the continuing persistence in pursuit of our belief
on HiFi equipment development.
24Bit / 192KHz wav and DSD Support
QA860 supports Studio Master wav files in 24Bit /
192KHz and DSD64 / 1Bit / Stereo. DSD files can be
streamed out of the digital output in DoP format, and
converted to analog singles directly through the
internal DAC as well.
- Dual 0.5PPM TCXO for 22.5792Mhz and 24.576Mhz.
- High standard power supply design:
- 2 customized toroidal transformer for digital and
analog circuits separately with vibration isolation and
absorbing design, and without interfering the digital
clock circuit completely.
- TI top line RF LDO for supplying the DAC chips and
clock circuits, which has been proved more suitable for
the digital circuit than the top line LDO of Linear
Technology in our long time test.
- Mono concept in designing power supply circuit for
each independent function unit.
- Schurter filter power entry module and fuses.
- Pre-amplifier inside with on / off and volume
control through the remote controller
(AD1955 is fixed level output to process DSD, as the
result the inside pre-amplifier is not functionable).
- High power headphone amplifier integrated for Hi /
Low impedance headphones.
- Case vibration isolation design and manufacture.
- 4-layers PCB for all circuit boards.
DAC: AD1955 I / V: OPA2134 x 2
LP and pre-amp: LME49720 x 3.
Headphone: LME49720 + OP2134 + TPA6120.
- 16Bit / 24Bit, 44.1-192Khz, DSD 1Bit 64FS.
- Audio format supported:
|| 16 / 24Bit, 44.1~192 kHz.
|| 16 / 24Bit,
|| 16 / 24Bit, 44.1 kHz~48 kHz,
compression level 0~8.
|| 16Bit, 44.1 kHz,
compression level fast and normal.
|| 16Bit, 44.1 kHz
|| 16Bit, 44.1 / 48 kHz, 96k bps~320k
bps, CBR / VBR / ABR encoding.
|| ANSI / UNICODE /
|| DSD64 1Bit, Stereo---DIFF﹜DSF﹜SACD
- Digital Output: PCM / Dolby Digital
output / DTS Digital output / DSD (DoP
- Digital Output: Coaxial x 1, Optical x 1.
- Digital Input: Coaxial x 1, Optical x 1 (up to 24Bit
- Analog Output: RCA x 1, XLR balance x 1.
- Headphone: 6.35mm x 2
- Analog Output:
|RCA output level
|S / N
|Total Harmonic distortion
|Headphone power output
||600次@120mw, 300次@250mw, 150次@5500mw, 64次@1.2W, 32次@2W
- Power: <30W
- Input Voltage: AC 110V and AC 220V selectable
- Dimensions: 215mm x 330mm x 100 mm
- Weight: 5KG
Tips: The USB port is reserved for future upgrade, it's
not functionable on QA860
( Internal AAA battery is not included
Internal PCB board:
( In order to improve the quality and
sound quality, components are subject to change without
The following items are included with your Order:
1. QA860 Player x 1.
2. Remote Control x 1. ( Not include AAA battery for remote
3. Power cable x 1.
4. 16GB Class10 SDHC Card x 1.
5. SDHC SD USB 2.0 Memory Card Reader x 1.
6. English User Guide x 1.
At the time of purchase, please
indicate the following.
Your couftry's voltage specs.
Payment methods 1: Direct
remittance to PAYPAL, Our PayPal Account: email@example.com
- We will send good by DHL / TNT / EMS Expres, and we
will declare the sending for gift with a low value(For
example: USD $100.00), to reduction reciever side to pay
tax or try to avoid reciever side to pay tax.
- If the list have not include your country, Please
contact us for get your shipping by E-mail.
Payment methods 2:
You can go directly to our EBAY purchased online stores:
Payment methods 3:
You alse can pay to our bank Accout:
Our Bank of China Account:
A/C NO: 4766938-0188-129144-0 IN A/C WITH:
BENE＆S BANK: BANK OF CHINA SHENZHEN BEI FANG BUILDING
SWIFT CODE: BKCHCNBJ45A ADD:
1/F,BEI FANG BUILDING,SHEN NAN
POST CODE: 518033
Tip: The beneficiary name should be TANG YAN, Not is QLS
After payment,please E-mail us the your recipient name,
recipient address, zip Code, contact phone number.
Our Email address: firstname.lastname@example.org
Payment Method 4: Wester Union
- You can select the nearest agency for westernunion, you only
need my name, city and country to send money. They accept cash
and online payment. After you send it, the workers of
westernunion will give you a control number, i need this control
number and your full name to draw money.
- With more than 150 years of experience, Western Union is a
global leader in money transfer services. It helps consumers and
businesses send money quickly and reliably, only take 5 minutes
to arrive. you can visit www.westernunion.com for more
details.Also it is easy to find a close agent from this link:
http://www.westernunion.com/info/selectCountry.asp and please
click Find An Agent .
Here is my westernunion info:
Address: A4-1-3B,Qianlong Xinmao
After payment,please e-mail us The Sender's First Name, Last
Name, Total Amount, Money Control Transfer Number and address on
the payment sheet, so that we can track and get the payment.
Also Please tell to us the your recipient name, recipient
address, zip Code, contact phone number.
Our Email address:
SHEN ZHEN QLS ELECTRONIC TECHNOLOGY CO.,LTD.(QLS-HiFi)
ADD:Room A1502,NiuLanQian Building,MinZhi Road,LongHua Town,ShenZhen,GuangDong,China
Postalcode:518131 TEL:+86-0755-28187975 FAX:+86-0755-28187976