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QA690--Full Digital Hi-Fi Stereo Amplifier |
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Price: |
QA690 ( Without USB ) USD $620.00(This product has been discontinued and is out of stock.)
QA690 ( With USB ) USD $710.00( This product has been discontinued and is out of stock. )
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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.
- Our target: “Perfectly and accurately recovery for
the music recordings, and deep dark background”.
- 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.
- 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.
24bit/192KHz
wav and DSD Support
- QA690 supports up to 24Bit / 192KHz and DSD64 / 1Bit / Stereo (DoP
input or USB) .
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 – 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 Ω) <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 Ω
- Power: AC 90~120V and AC 200-240V selectable
- Speaker Impedance range: 1.5Ω -16 Ω
- Power output: 4 Ω 160W x 2CH; 8 Ω 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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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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