Have a look at the following thread for some good explanations about subwoofer set-up: SubWoofer Help ASAP... Regarding your question, there are four possible orientations so you would need to experiment. :) Good luck! Paul |
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Paul McGowan of PS Audio just finished a detailed blog series on this. It looked quite thorough and sensible, although I don't have a sub to try it. You can check it out at: http://www.pstracks.com/pauls-posts/woofer/9990/ He posts his blog once a day and the subwoofer series was done in a week or two. |
Elizabeth, are you sure that you have describe the "echo-slap" theory correctly? Any room echoes are detrimental to the sound of a stereo, so why would one want to excite as many room modes as possible? Even in rooms that are perfectly symmetric only very few room modes excited by the two speakers will cancel each other, and most likely never completely. What I typically do, is have somebody clap his/her hand in front of the midrange driver, then place acoustic panels in the room so that I have no echoes in my listening chair. This way I make sure that I minimize room reflection at my listening chair. Regarding the link posted by Guinness, it is important to realize that there are more methods for setting up a subwoofer, and that all these methods can give good results when done properly. For example, REL advise is to cross-over the sub as low as possible, while Lyngdorf on the other hand crosses-over the sub at 300 Hz. There are also those that argue that the sub should always be crossed-over at 80 HZ or at 120Hz. In the end, it all depends on the system, i.e. speakers, subwoofer, connection type, etc. As usually, there are more ways to skin a cat. |
