Having read the reviews I was in two minds on whether to buy this product or not. On one hand some gave it good reviews for sound quality but bad for the power and others were saying that the bluetooth didnt work (a feature I needed) and that the built in amplifier was only 7 W not 60 W.
After receiving the device it was a straight swap for my old Sony MEX-BT3900U. Straight off, when configured the sound quality is actually better than the sony. The unit definately is more powerfull than the sony (which was a 4X52W unit) and the bass is a lot more defined with a lot less distortion and clearer at higher volumes. The radio playback quality is excellent and easy to set up. Playback from any SD/USB device is also brilliant but again depends on how it was ripped in the first place for overall sound quality but normal 320kbps mp3 files sound brilliant and better than on the sony.
One issue a lot seemed to be having was the bluetooth. In order to get this working you need to go into the menu (press the large middle button in) and keep pressing the button until you get to the BT-OFF option (this is default) then turn the volume button until it goes to BT-ON. search for new devices on your phone and it will appear as BlueAudio. REMEMBER android devices tend to show new devices at the very BOTTOM of the list so scroll down in case its off the screen. When that is done then it connects within seconds. My old sony unit could take up to a minute to do this, There is no fance phonebook option or dial option from the unit but no biggie there. The call quality is excellent and loud and really clear for the other party as well.
One thing that really surprised me was the music playback. When you select to play music from the phone my music app automatically launched and played, full control for skipping, FF and rewind are all controlled from the unit so you never even have to take the phone from your pocket, a feature that was not available on my Sony, I had to start the music player before I got any sound.
Overall this is an extremely impressive piece of kit for the money, It is high powered and sounds brilliant with a full BT function for your phone for calls and music. Cant recommend it highly enough..