Power Accoustik is a US company and yes the radio is made in china but it is not a rehash of other headunits. It runs a custom linux firmware. It is exclusive to Walmart. So that is the down side is that you are stuck going to walmart to get it.

Yes I have a custom EQ profile set and it plays with the factory amp just fine. Nice and loud only thing I would do is there is a port in the back for external mic I would find a good external mic and run it as the built in mic is fine when the radio is on and the car is in accessory mode but gets muffled when driving ( acceleration )