So I bought this to use on my shed along with 4 – 6.5" outdoor speakers to crank up the tunes in the garden. Installation is pretty straight forward and simple. I after powering up I discovered the unit had a faulty transformer at the power input. Reported issue to amazon and had a replacement 2 days later. The replacement unit fired up no problem. I have had this system in place for about a week now, and I can tell you I’m extremely satisfied with the sound quality.The 60W x 4 speakers does the trick. I can hear the music clearly across my 1-acre lot. For the cost of this unit + the 4 Pyle speakers, it beats the heck out of the more expensive alternatives. One drawback is the blue tooth reception is kind of weak. I can’t stray too far away with my phone, so I just leave it in the shed while I’m working or playing in the yard.