I'm normally the guitar player but will be playing bass this weekend since the bass player will be out. However, there is no bass rig so I'm running straight through the PA. The normal bass player runs direct as well but he uses a Behringer Bass V-Amp. Since we use an Aviom system, there's not much bass presence at all on stage. No grumbling, rumbling, etc. Is this acceptable for a bass set-up?