Riva app works well & allows you to make minor adjustments (bass & treble, etc).

Granted that the use of built in Chromecast on the Riva means that you leverage Google Home app for casting for music playing

The Riva Wand app is easy to use even for a tech-challenged person like me!It is versatile

There is also the RIVA WAND app available to help manage and fine tune the

I could have actually gone even cheaper, there are Chromecast apps available for the Fire TV, eliminating the need for hardware