I’m building a Halloween prop to send a puff of air using a 12" woofer speaker. The speaker is mounted in a 12" cardboard tube that is 2 feet long. The other end is plugged with a piece of plywood with a 2" hole. My problem is that the speaker is not moving enough air. The air puff is weak and only can be felt a few inches away.
How can I drive the speaker to the maximum movement forward in a quick motion?
Presently I’m using a switching power supply (110v AC) input with a 15w 12v 1.25amp output.
I tried a 15 amp 12v output power supply and this actually produced less air movement.