So you need a loudspeaker. You intend to sit down and compare the specifications to determine which one is better. Depending on whom you ask, “better” can mean: louder, flatter response, higher power, better coverage, goes lower and/or higher in frequency, heavier, bigger, more drivers, or heavier-duty enclosure. Specifications usually cover all of these attributes. The question is: are these numbers useful? Are they even correct?