I'm after a bit of advice for what my band might need to do to beef up our setup for outdoor gigs.
We're a 5-piece with keys, guitar and bass, and usually we use the PA for vocals and keys, with the drums un-mic'd and the guitar and bass coming from the backline only. We've been asked to play at a small outdoor event in the summer, where all I'm told about the setup is that it's a corporate event for a local company, where there'll also be food vans, bouncy castle, and so on. We've been asked to use our PA not only for us but also for music in between sets. Past experience tells us that our current setup, which consists of a pair of Behringer B112D speakers, isn't up to the job, though it's perfectly adequate indoors. We're not keen to buy anything new because we don't do many of these types of gig at all, so would be looking at either hiring something or buying secondhand.
But the question is what should we be looking for? Are we just looking at something like a pair of subs to take the pressure off the main speakers, or a whole new PA?