This little box provides a lot more than its tiny body.First
of all, QA01 is a HiFi USB to SPDIF converter that is able
to stream your music library stored computers to 24bit/96KHz
digital output including RCA coaxial, Optical and I2S.
Secondly QA01 is a stereo analog to digital convertor
interface that provides the way to store your favorite old
tapes and LPs to 24bit/192KHz high quality digital recording
on devices like MD.
QA01 employees TE7022L as the USB interface chip, the native
ASIO and USB2.0support of TE7022E working together with the
sampling clock reforming circuit that reduce jitters to the
In order to deliver high quality of sound,each functional
unit is supplied by an independent LDO voltage regulator
chip, and the system can be powered by an external power
supply to get even better performance, the external power
supply overrides the USB supply automatically once the
external power supply powered up.
chips: TE7022L(USB)/WM8782 (ADC)+WM8804+DS8921
- USB Sound card: 24bit/96KHz, PCM, AC-3 and DTS
- ADC Converters: 24bit/192KHz or 24bit/96Khz(Use
Internal jumper select, factory default 24bit 96Khz)
- RCA Coaxial
- I2S (RJ45)
input: RCA (L+R)
power supply: 9VDC
sound card Plug and Play with Windows2000 to Win8 and
Mac OS 9.1 or later
- Support ASIO
If use ASIO please go to this web site download Asio
1. USB to SPDIF (USB
digital sound card).
2. Analog to SPDIF
Example: QA01 can offer USB&Analog input for QA100
Full Digital Amplifier.
QA01 can offer PCM digital audio output for your LP or other
no digital output's player to your DAC.
select, External power supply input priority).
1. External DC9V
power supply input.
2. Offer power supply
from USB Port.
The main chip:
1. USB Chip: TE7022L
2. ADC Chip: WM8782
3. Digital transmitter：WM8804+DS8921