After playing clubs for a couple of years, my band will be playing at a big outdoor music festival next month. This is a big deal. Stages and sound system will be provided. In the clubs, I use a Sansamp BDDI into our PA, and use my bass amp only for stage monitoring. Works well. My question is: is that sufficient for big outdoor stage venue? Or should I have some other kind of pre-amp or direct input to their system? Or should I contact them? I know this is a stupid question, but we've been small-time until now and nobody else can give me an answer. Thanks for the help.