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QA690--Full Digital Hi-Fi Stereo Amplifier |
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Price: |
QA690 ( Without USB ) USD $620.00
QA690 ( With USB ) USD $710.00 ( All Exclude
shipping cost ) ( in Stock )
How buy it: Click here
Warranty: Click here
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- QA690 is a Hi-End Full Digital Stereo Amplifier, It
is based on the QA100 with improvementon the circuit, We
spent over 3 years on developing and continuing
optimizationthrough testing more than 10 major hardware
version. This is a true competitor to most of the Stereo
Amplifier, complicated power supply systems and clock
circuits.
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- Our target: ¡°Perfectly and accurately recovery for
the music recordings, and deep dark background¡±.
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- QA690 is able to drive 4Ω@160W-8Ω@100W2 way
bookshelf and floor standing speakers smoothly with
accurate, transparent, high dynamic range and excellent
transient response sound style.
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- QA690 designed as open loop digital circuits, thus
there is no stable problem even in driving speakers with
very low impedance. Moreover DSP technology is employed
to correct the expected deviation on the final outputs
that made a significant improvement for the amplifier¡¯s
line output characteristics.
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24bit/192KHz
wav and DSD Support
- QA690 supports up to 24Bit / 192KHz and DSD64 / 1Bit / Stereo (DoP
input or USB) .
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QA690(With USB) Also have a XMOS USB Bridge to Computer
- The QA690 (With USB) also is have an asynchronous High Speed
USB to digital audio interface that extracts the highest
possible audio quality from computer audio sources.
- The QA690 (With USB) is have High Speed USB 2.0 input data
connection ¨C Sampling rates up to 192 kHz and word lengths
up to 24 Bit are supported.
- Great care was taken in the design of the QA690(With USB) to
isolate the noisy computer/USB environment from the digital
audio output. The USB receiver and processing are powered by
the computer, while the output line drivers are powered by a
separate isolated linear power supply.
- The QA690 (With USB) USB is designed to work
with both Apple Macintosh and Windows PC computers.
Microsoft Windows PC¡¯s require the included Windows
driver which works with Windows XP, Vista and Win7 /
8/ 10.
Features&Specification:
- High quality sampling clock reform circuits.
- Input: RCA Coaxial*2, Optical*1, Analog Line in*1,
USB*1[Only for (QA690 with USB)]
- Digital format: 16bit to 24bit, 32K to 192K Stereo (sampling
rate and bit adaptive), DSD64(DoP input or USB)
- Power Stage chip: TAS5624 *2
- Master Volume: 0 ~ 80; L/R Volume Trim: -5 ~ +5; TREBLE
Trim:0~5, BASS Trim:0~5 .
- Use Low Jitter Crystal .
- Total hamornic distortion (-2.5dBFS, 8 ¦¸) <0.02 %.
- Dynamic Range, a-weighted 101 dB.
- S/N ratio, a-weighted: 101dB.
- Channel separation: 97dB.
- Frequency response, audio range (20Hz - 20kHz) +/-0.5dB,8 ¦¸
- Power: AC 90~120V and AC 200-240V selectable
- Speaker Impedance range: 1.5¦¸ -16 ¦¸
- Power output: 4 ¦¸ 160W x 2CH; 8 ¦¸ 100W
x 2CH
- Dimensions: 215mm x 315mm x 100mm
- Weight: 5KG
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Internal PCB board:
(In order to improve the quality and sound quality,
components are subject to change without notice.)
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The following items are included with your
Order:
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Price: |
At the time of purchase,
please indicate the following:
Your couftry's voltage specs.
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Payment methods 1: Direct remittance to PAYPAL, Our paypal
account: cxqmcu@cxqmcu.com
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Tip:
- 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.cxqmcu@cxqmcu.com
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clark_chen@aliyun.com /
315392961@qq.com
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Payment methods 2:
You can go directly to our EBAY purchased online stores:
http://www.ebay.com/itm/302422397364
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:
TANG YAN
BENE¡®S BANK: BANK OF CHINA SHENZHEN BEI FANG BUILDING
SUB-BRANCH
SWIFT CODE: BKCHCNBJ45A ADD:
1/F,BEI FANG BUILDING,SHEN NAN
ZHONG ROAD,SHENZHEN,CHINA
POST CODE: 518033
Tip: The beneficiary name should be TANG YAN , Not is QLS
Electronics.
After payment,please E-mail us the your recipient name.
Recipient address. Zip Code. Contact phone number.
Our Email: cxqmcu@cxqmcu.com
clark_chen@aliyun.com
315392961@qq.com
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:
Firstname: Yan Familyname:
Tang Address: A4-1-3B,Qianlong Xinmao
Garden,Longhua,ShenZhen,Guangdong,China City: ShenZhen
State: Guangdong Country: China
Note:
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:
cxqmcu@cxqmcu.com
clark_chen@aliyun.com
315392961@qq.com
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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
E-Mail:cxqmcu@cxqmcu.com |
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