What Raimonds suggests is an app called Viper4android, which comprises an convolver capable to work with the 7files made from measurements carried out by the Workshop.

So you do not need apl1 box in a car, if you have android based head unit or smartphone as a source.

Using smartphone, it is possible to listen music from in-built speaker, ear-phone or another device connected by bluetooth or usb cable. Starting from Lollipop, all android versions support USB audio out. In this case you can just use the latest version of Poweramp or USB recorder Pro from the Google Play.

It is possible to get correction files to every acoustic system you own. Really smart

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