Colour me confused.

K so I was just perusing the specs for my H2 12.2 on the Orion site.

They have a recommended box, port tuned to 28hz.

But the ratings say the sub's frequency range is 30-2.5k, so they're tuning it below what it can normally play? Why would one do this?

The Fs (free-air resonance, Hz) is rated at 30.54hz. I always thought that this rating was the lowest note you should ever hand it, but I guess I'm wrong. What is "Free-Air Resonance"?

 

Meh, frequency range is probably based on a +/- 3 or 6dB range, so that's not to necessarily say it won't play anything (well) below 30Hz, but it's probably the point at which things start to roll off a little. In any case, it should still give it some solid low-end at that tuning freq. I wouldn't be concerned about it.

Free-air resonance is basically the resonance of the cone and suspension assuming the sub is free-air (not mounted in a box). To put things into perspective, if you were to hold the sub in open air and tap the cone lightly, it would vibrate (resonate) for a split second. The short tone you hear is its resonant frequency.

 

mmmmmmmmmm input!

Thanks!