Choosing Sub-woofers. Please advise ASAP.
Well, the frequency (i.e., the period between when the derivative is 0) won’t change based on driver size but cone velocity will, for a given output. A smaller cone moves less air and has to travel further between peaks for the same output as a larger driver. i’ve always understood it this way, but I’m here to learn so I’m happy to be proven wrong. ;) |
cedargrover Well, the frequency (i.e., the period between when the derivative is 0) won’t change based on driver size but cone velocity will, for a given output.The "cone velocity" is the driver's frequency. If asked to produce a 32 Hz tone, the cone should move at 32 cycles per second, regardless of the diameter of the cone. It's simply not true that: If you want to make bass, you can either move a large driver slow or a small driver fast. |
The key is for a given output. A cone can cycle at 40 hz, but the distance between stops (i.e. Where derivative is 0) will vary depending on the amplitude of the signal. A smaller cone has to travel further to move the same amount of air as a larger driver. So a large cone might move 5 mm back and forth to produce a given output at a given frequency. But a smaller cone might have to move 7.5 mm. And do so in the same period of time to keep the signal at 40hz. If im wrong, show me the maths! :) |
