I purchased the Flightcase 150 to play in an acoustic trio group. (two guitars & bass). We play small to medium sized clubs with a lot of background noise. This amp has surprised me with how loud it can get and still have a great clean sound. My guitarists play through the PA and this amp will cut through the volume and then some. The design and construction and of course the light weight of this amp is superb and it sounds so good for such a small unit. Love it. Thanks Phil.......