Does anyone on hear use or have any experience with 12 inch subs? I only ask because I'm thinking about downgrading my rig to better accommodate my needs. Oh and to save our backs and space. I always run subwoofers but just don't see the need to bring in full 18s or much less my dual 18s for small bars with less than 50 people n only 20 or so on the dance floor. My other concern is how will they fair with 15 inch mains.