Originally Posted by mdocod
Personally i consider 36hz to be relatively high loading for a 12" sub... Most people use subs like this in home theater, where there are many impacts and explosions and such reaching down into the 20hz range in movies. In fact, almost all audio programs include some nuances (intended or not) reaching down below 30hz. Sometimes it's nothing more than the pop of a vocal opening up on the mic, or the natural harmonics of the drums and bass lines, either way, those frequencies are generally there, and can be felt, and they will being a "presence" to a system that I feel is worth having if possible.
I've build speakers with 5" woofers that could play down to 40hz at very respectable listening levels. I know lower tuning is possible without major efficiency losses on a properly selected 12" driver.
I do agree. However the BIC subwoofers do extend lower than tuned frequency. That's just where they're tuned at, and that's just off my memory, I could be off. It might be lower tuned.
My personal 12" subwoofer is tuned at 30Hz and it extends fluidly down to 18Hz just fine. 30Hz is just where its "optimal" frequency is at.
If you look at the driver alone on those BIC subwoofers, its a pretty beefy sub (comparatively speaking to other home subs). It's got a huge surround, and the magnet is pretty decently sized. It's got the ability to do some serious excursion, that will help it reach lower.