What's the difference between a 10 inch speaker with 2,000 RMS and a 15 inch speaker with 2,000 RMS? SPL only. Wouldn't they both hit around the same db if they both had 2,000 watts going to them?
The 15 has more surface area and therefore can move more air than a 10". The more air you move, the louder it is going to be. Also, a 10" will be more accurate while a 15" will be louder/deeper.
well, power ratings are pretty irrelavent but if both speakers are the same brand and product line, and both can take 2Kw without reaching their mechanical limits, the 15" will displace more air, having more cone surface area and usually a significatly greater excursion so it would be the louder of the two drivers.
OK. Dumb question on my part. Lets say he has room for two 10's or one 15. The two tens would be better then, correct? I mean, is it as simple as just adding the inches? lol
by the way, regarding which is quicker or more accurate, that depends more on the respective BL curves of the drivers, and not so much on their cone diameter.
I understand glass, but as a general statement, when you have a smaller cone area, the motor has more control that if it is handling a bigger cone. This is also assuming that both motors are the same style.
no, again the motor strength is going to determine the control over the sub, and larger drivers generally use stronger motors.. if both speakers used the same exact motor structure then sure the ten would be quicker, but that's really not the typical case in the real world. this whole thing about smaller subs being quicker is mostly just a myth.
What makes a large sub sound loose or sloppy generally boils down to one or more of the following reasons: -cheap speaker with a weak BL (bad design, cheaply made) -underpowered resulting in weak motor control -wrong enclosure for the driver -LPF set too high for the size of the driver
all of these are user error or really the user's fault for buying a crappy sub. None of them relate to the driver's moving mass or cone diameter in regards to the accuracy of the speaker.
this myth is mostly propagated from decades ago before we had high current amplifiers readily available, and before we had speakers with today's design technology, where speakers generally did have small, weak magnets/motors and lacked sufficient control for the driver's moving mass and power applied. No longer the case with a little time taken to choose the proper gear.