| Re: Does an (S)LLT require a subsonic filter?
The choice of an infrasonic Fb, in and of itself affords no special protection to a vented alignment. If the electronics pass frequencies below Fb to the driver it will unload. So it's a bit naive to claim these designs need no supplementary protection.
Threads where the rotary subwoofer is discussed, illustrate the amount of very low frequency content studios currently encode in DVD soundtracks. It's logical to assume trend will continue if not expand with the potential of the newest formats used on HD/BR DVD soundracks.
So it's probably unwise to make blanket statements to the effect that all infrasonic Fb vented designs are inherently protected by a combination of Fb and electronic roll-off.
Aloha,
Willy
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