QuantAsylum QA451 User’s Manual
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QA451 Software
The QA451 and QA451B
will appear on your PC as a “HID” device with a USB VID:PID of 0x16C0:0x4E
35.
It doesn’t need drivers. It will show up in the Device Manager as a “HID
-compliant vendor-defined
device.”
When you first plug in the QA451 device, Windows should spend a bit of time configuring the device.
Download and install the QA451 application from
. After launching the application, you should
see the following UI:
In the title bar, you can see the version of the software, shown here as 1.0. In the status bar, we can see
the hardware
device is “opened”
and that this is firmware version 30. You will be alerted if the firmware
version is incorrect and given a chance to re-flash the QA451 hardware. It is important to NOT use the
application if the firmware version is reported as incorrect as malfunctions could occur.
When the QA451
and application are “talking”, should see the “LINK” LED on the
QA451 hardware
illuminated.
If
you press the “8 Ohms” button, you will hear a “click” from the
QA451 relays and the application will
report the 8 ohm load is active as shown below. At this point, you can use a DVM to measure across the
L+ and L- Load Input pins and confirm that 8 ohms is being presented. You can repeat the experiment for
4 ohms, too, and also for the right channel.
