Sean.D

^ The decibal system isent linear.. as in all things equal in the above setup with only one woofer it would be in the 130's. General rule of thumb for all that is double the wattage +3db (small but noticeable), double the surface area +10db (double perceived volume) You can't just look at what equipment someone has and make a generalization about how loud it is. The install is usually more important than the equipment itself. And double the surface area is +3db if you don't run into phasing issues or loading problems. thats why I said "all things equal" just a reference. and two drivers wired in parallel your going to get more then +3db

^ The decibal system isent linear.. as in all things equal in the above setup with only one woofer it would be in the 130's. General rule of thumb for all that is double the wattage +3db (small but noticeable), double the surface area +10db (double perceived volume)

2k and 3.5k 48188 Thanks!