Axiom Home Page Forums General Discussion Home Theater Subwoofers - Question

Sat,as you know,subs and all other speakers work primarily against the air OUTside the enclosure. Ported designs also give the air in the port an active role. Although the majority of speakers are ported, this certainly isn't essential and there are many sealed speakers, including your BPS150. Mirage is big on the "bipolar" theme, but here all it means is two drivers instead of one in a sealed enclosure. Since the opposite movements of the drivers tend to cancel out the enclosure vibration, I suppose that your sub won't "go walking".

Alan, thanks to you (and everyone) for the education and information given on subs. I have been testing various subwoofers as well as looking at those of my friends and do find that the sound changes based upon position in the room. BTW, as a newbie I wanted to say thanks for providing a place where one can get good, unbiased audio information without the salesmanship seen in the stores.

I have a sub placement question. I have a direct reflecting sub that is ported. I have it placed in a corner behind a 55 16:9 tv that sits on an angle in the corner of the room. My questions is: Should I face the speaker towards the wall with the port facing the long end of the wall to the other side of the room or the other way around. I am picking up my dts reciever tonight and wanted any advice the experts might have. Thanks in advance!

It should make little difference as long as you allow a few inches of space between either the driver or the port and the closest wall. In order to get best room reinforcement for the bass the center of the driver should be within about 1 1/2 feet of each wall. So,try to satisfy both of those factors, possibly even placing the sub diagonally.