I was truly impressed with the power, clarity and flat response of these monitors. I have tested them using multiple sources in my daw such as synths, drums and vocals. I am primarily a guitarist and I've used these with a Zoom G5 and a POD HD 500X with great results.These really floored me when I tested them listening to some concerts. All of the nuances and punch of the bands were faithfully translated. I have used these for extended periods at high volume levels without ear fatigue. They are really powerful for their size.You can crank them and hear them throughout your entire living space.