10-08-2007, 09:38 PM
There are only 2 ways to move air and thus create maximum SPL. The first is a driver's xmax (the ability to move forward and back). That's the linear motion from a stationary state. So say one 10" driver has a 1" xmax ( 1/2" forward, 1/2" back) and another 10" has a 1 1/2" xmax. Assuming the same effeciancy of the drive system (magnet, suspension, etc.) then the driver with the higher xmax will be capable of moving more air and thus achieving a higher SPL (sound pressure level).
The second way is a larger diameter driver.
A smaller sealed box will make your "type r" hit harder if you mean a faster transient response, however that will come at the the expense of lower bass. There's always a trade off.
BTW, regardless of input (100 watts or 5000 watts) any energy that can not be converted into linear motion ends up as heat and must be dissipated though the voice coil and magnet assembly.
The second way is a larger diameter driver.
A smaller sealed box will make your "type r" hit harder if you mean a faster transient response, however that will come at the the expense of lower bass. There's always a trade off.
BTW, regardless of input (100 watts or 5000 watts) any energy that can not be converted into linear motion ends up as heat and must be dissipated though the voice coil and magnet assembly.