How high should a subwoofer play?

[Tweeker]

This is the 12" woofer I planned to use.

[454Casull]

http://www.audioasylum.com/forums/hu...ges/97895.html

[Claus]

I have listen to subwoofers that where cut at more then 300hz without any placement problem. The woofers where placed in corners and where time aligned to the main speakers, with a delay line for the main speakers (A digital crossover/roomcorrection are mandatory, fx. Tact RCS). I think the time aligment is the main factor for succes.

claus

[Kittle]

My own listening tests gave me a cutoff point of 135hz when I could actually tell where the sub was sitting based on sound.
being that I usually use a cutoff of 100hz or so, its not a problem.

[paulspencer]

Also consider how accurate the driver is up that high. I find better performance when I cross low ~ 40 Hz or so. I have tried crossing up at 80 Hz with a 4LR and didn't like the result. IMO you need a very good driver to cross higher than this for anything other than home theatre LFE use.

I don't know anything about that driver you linked, but it does look good for OB line array use. Perhaps make it a 3 way OB then cross to a sub in the midbass somewhere ~ 40 - 60 Hz. If you make the woofers a U frame you can get an fequal down to 60 Hz without it being too big.