I am having a friendly discussion with my band (keyboard, guitar, bass and drums). I am using a powerful peavey top with 2 x 10". I am not using the PA because it starts to roll off at 55 hz. (using 5 st. bass) and it sounds greater with out the bass. We are talking about adding 18" speakers to the PA. While i would like to add a 15" to my rig. (the drummer want to plugg his bass drum to my amp ) The band think i should go for plugging in to the PA because mixing will be more easey, and we don't have to drag my rig along. (they argue that many pro's plugg in to the PA) I still think the ultimate sound is from a standalone rig ! Should i lose the battle ? Any opinions !