DAP-Audio CORE MIX-3 USB

I choose to buy this mixer after reading all of its characteristics . After a few hours of use the mixer shut down by it self . I send them back to THOMANN to repair it due to faulty PSU !! After a few months I receive it back but then another problem occurs after a few hours of use again , all the outputs has distorted sound and I had to repair it again !! I am very disappointed because I bought a scrap not a mixer . For the few hours that works it was a great mixer but this device has very low quality and its very unreliable .

I bought 3 pices like this mixer.
And the 3 pieces was damaged with the same problem.
The quality of sound isnt so good like pioneer mixer