Quote:
Originally Posted by Christ
For your door speakers, you can take the ridges off the speaker frames, and you can also drill the "legs" on the speaker frames to remove weight without weakening them.
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With all due respect, I disagree that this is a good idea. We (manufacturers) already use as little material as we can get away with on the frames, because steel or aluminum and freight are expensive. The rigidity of the frame is necessary for intelligibility and clarity. There might be a little 'dead weight'... but probably much less than you might expect. The necessarily heavy parts of a driver are the magnet and pole piece, we use AlNiCo or ceramic on lower cost drivers because although neodymium is stronger and can be made much ligher... and it's not particularly rare (despite being called a "Rare Earth" magnet), its price has been driven unnaturally high in recent times. Apart from using neodymium, it's not possible to reduce the mass of the magnet structure and maintain the necessary BL to offer good performance from the driver.
Quote:
Originally Posted by Christ
A ported sub box uses less material, thus weighs less.
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Also disagree, in order to achieve port tuning below driver Fs on a ported enclosure it is necessary to make the enclosure larger than an equivalent 'Q' sealed enclosure. A "Bass Pump" (which is actually a type of bandpass arrangement with an extremely tight front chamber) or an aperiodic enclosure (like the front half of a small sealed enclosure, with a perforated back end) are the only two ways I know of to reduce materials vs. a sealed enclosure while still providing some form of wave suspension.
