The 15 inch sub will be able to move more air than the 12 inch,but that does not mean the 15 will go deepest. Everything else equal,a smaller loudspeaker will go deeper in a given enclosure. Many good 15–18 inch subs will use a servo system to get control over the big loudspeakers.Click to see full answer. Likewise, people ask, are 10 or 12 inch subs better?The only accurate answer is, the 12″ is larger. 10″ subs are not “tighter” than 12″ subs, that’s a myth. From Audio Pulse’s Myths About Subwoofers, Myth#8: One of the biggest myths about woofers is that 8’s and 10’s are “tighter” and “cleaner” than 15’s or 18’s.Subsequently, question is, is it better to have 1 or 2 subwoofers? The answer to this question is typically yes, assuming you’re comparing one vs. two subs of the exact same brand and model #. In almost all circumstances, installing multiple subwoofers in your theater room will yield significantly better and smoother bass response across a wider listening area due to modal averaging. In respect to this, are 15 inch subs good? Rap and hip hop music often hit frequencies of around 40hz, so if you want a lot of boom, a 15 inch subwoofer may be a better choice for that type of music then a 12 inch subwoofer. If you’re looking for bass that has a rich, tight sound, a 12 inch subwoofer between 80hz and 150 hz is the better choice.What size sub is best?If this is your preference, then a subwoofer is an absolute must. The 15″ sub is the best for moving the large volume of air required to reproduce this type of music. A factory speaker, or even the best aftermarket 6 x9, is no match for these demanding notes.