Cardas Speaker placement..

Interesting to run into this post. I'm in the same boat. Just moved into a new room and am trying to figure out where to place my speakers. I too tried the Cardas Placement calculation and actually liked the result only after adding diffusion at the first reflection point. Since our rooms are similar in size (14' W x 21' L x 8' H) the Cardas method put my speakers 4' from the side walls like yours.

I could not get the bass that I was looking for and the speakers actually seemed to almost be out of phase. I kept rechecking my cables and would swear that the speakers were out of phase. Talking to another audio buddy of mine he explained that the sound was arriving to my ears a bit too quickly thus canceling out some of the sound and giving me the phase sound. I added a 2 x 4 absorption panel and the bass began to appear. The sound was actually pretty good but I couldn't get over having the speakers so close together plus it seemed like I was sitting right up against the speakers.

Wanted to try the 1/3 placement calculation to see if there might be an improvement. This would put my speakers 27" from the side wall. This sounded a bit better to me but I felt the speakers were a bit too far apart now. I kept inching them closer together and now I'm about 36" from the side wall and I'm getting good imaging and the bass is sounding pretty decent. I can't say that this is the final resting spot but I have the Cardas placement taped off so I can return the speakers to that spot if I choose to.

Go to the Evolution Acoustic Website and see what they suggest.

I'll keep you posted on any improvements or new developments on speaker placement.

Sorry for the double post..... pulled the trigger a bit too fast on my first response.

I'm also going through speaker placement right now. My room is 13.5'x18.5'. Set up on the short wall, this will put my speakers 6' apart and 3.7' from the side walls. Thiels require you to be at least 8' from them for the driver to integrate, so I don't think this placement will work. If I sat 8' from the speakers, I would not be close to being in an equilateral triangle with them.

I then found out about the Vandersteen placement method, so I'm playing with that now. I found instructions in the Model 3A Signature manual. Now, the reason for my post.

Ablang said-

Then stick your listening position 1/3, 1/5, or 1/7 into the room, whichever brings you closest to an equilateral triangle between you and the speakers.

I don't see anything about the listening position location at all in the 3A Signature manual. Did you find that in a different manual, or did you discover this on your own?

Thanks,

Philjolet,you were saying about "out of phase"All hook ups are correct but it doesn't mean the guy before me didn't do something goofy to the speakers.How can I tell if everything's correct internally..?The bass modules are separate from the satellites so the connections on the bass modules could be reversed.
.

a battery can be hooked up to the speaker positive to positive and the woofer goes out.

I have not done this myself but heard about it years ago,

please do not try it until someone else verifies it

and good luck