I've been using Bose L1 Compact for then years.As you know that one has no effect and very simple but really good speaker.I wanted to get Bose S1 Pro Plus for my gigs in cafes,small restaurants,street performances etc.Easy to carry,modern,new tech. small speaker and to tell the truth,before i bought this model i had some questions in my mind...Could it be bit weak for a serious live performance ,cheap plastic body,dead base notes etc...But i totally surprised in positive way.First of all the const.of speaker is very robust,looking great,really loud,more fully bass, so after i used a few times i would highly recommend this box.Especially if you run it through a good mixer(i do this way-with a Allen&Heath mixer and Voice Live Touch2) you ll get a really perfect result.For every gig i carry it with a pleasure! It would be good phantom power spec. and main volume!