speaker placement help

My room is 13'x18'x11'high. I have my speakers on the short wall 6 feet into the room and about 33 and 1/2 inches into the room from the side walls. The room is rectangular and I have the speakers perfectly symetrical.My question is that should my listening position be an equilateral point from the distance of the speakers or is it OK to have my listening position 1 and 1/2 the distance of the speakers back towards the back wall therefore having my listening position at the back wall as opposed to three feet from the back wall.I've tried both ways and find I get a better bass response with the listening position at the back wall but some say it's good to have distance between your listening position and the back wall and others say it's OK to be at the back wall.Any help would be appreciated!!!
what speakers?
Hales Transcendence 5's.
Forget what anyone says, and locate your seat where the music sounds the best to you. Remember there are exceptions to every rule...
When I place my listening position equilateral from the distance of the soeakers from each other I get a wider sound stage but when I move the couch 31" back to the back wall I get a lower bass response which I like. Is it important to have the listening position equilateral to the distance of the speakers or can the listening position be 1 and 1/2 times the distance of the speakers and therefor right at the back wall? Thanks
Most speakers work best with the listening position somewhere in the area of 1 to 1.5 times the distance between the speakers. This is a generalization because there are no iron-clad rules. As you have noted, each position will involve a set of trade-offs and it is for you to decide which set you prefer.
Since you enjoy sound in this position (at least for now) why not stop worrying and listen to music!

The most "correct", as in reproduction of the original, is when you are away from room boundaries & thereby reduce the effects of wall reflections. Reflected sounds are time delayed vs the source, and not in phase with the fundamental sound, generally muddling imaging, clarity, etc. Speakers are usefully 65-75 degrees apart, from listening position. In conclusion, watch out for an isosceles triangle -- but don't worry too much about the equilateral. Cheers
With your head against the back wall, you will experience some doubling of some frequencies - usually a significant increase in treble and sometimes a mid bass boost. If that sounds better, then no problem. But if you find the midrange lost a little bit, get your head away from the reflective back wall.

I once owned some Hales speakers and I loved the inefficient beasts. They produced a ton of bass and the treble was a little hot when the volume went up, so for me, a listening position against the rear wall would have increased problems with the sound. But your room and your speakers and your setup may be just the opposite.

FWIW, I'd try the Hales further apart, against the long wall, and toed in so that the cross point is about 3 feet behind your head.

If you have to be against the rear wall (room aesthetics, traffic pattern) hang something absorbtive right behind your head (thick rug, echobuster, etc).

Good luck,

If room is dedicated (if not, how did you get speaker placement past "WAF"), check out Immedia approach. http://www.immediasound.com/Speakersetup.html

Also, see Cardas approach. http://www.cardas.com/cgi-bin/main_content.cgi?area=Insights&content_id=26&pagestring=Room+Setup

My favorite is Plato's approach. There's a lot to be said for ignoring the "experts."
I thought the following article might help.
I can't seem to get a strong 50Hz and 40Hz but 30Hz is quite strong. All other frequencies appear equal by my ear.
In other words, how can I improve my mid bass?
Thanks for all your help.
It sounds like the best speaker configuration for me is having my head equidistant from the distance between the midline of the speaker to the midline of the other speaker. I'm actually blown away on how good this setup works for me. I'm getting the low frequencies I was missing as well as tons more detail in the mids and highs.
A question I should ask is that according to the Golden Ratio rule my speakers should be 70" from the back wall which they are and they should be 43" from the side wall which they are not. I find that 43" from the side wall to midline of each speaker puts the speakers too close together having the speakers 5.8 feet apart. I like the speakers 7.25 feet apart for the wider soundstage.At 7.25 feet apart my speakers are 34 inches from the side wall to the midline of each speaker. Any opinions or advice would be appreciated.