A:Answer These speakers are not good for playing instruments. They have a 2 millisecond delay when hooked up through RCA. The delay is worse with bluetooth. The speakers work great for their intended purpose, listing through a smart phone. FYI if you are wanting to use these with a TV or a projector you may get lip sync issues. If you are using a computer I had to adjust the video delay in VLC media player. Also don't try to mix different brand powered speakers with these, The directions will tell you how with the party chain feature, but due to the delay you will get a horrible echo due to the delay (this wont happen if using the Sony gtk-xb7 or gtk-xb5).
