Originally Posted by dmusoke
My satellites are the CRM2's from sunfire and are small and on stands without much bass below 100Hz or so. They are 2 feet from the side and back walls. They have side-firing woofers and ribbons for transducers. I could place them closer to the wall for better bass response but the imaging and ambience suffers. I choose them for their use of ribbons as transducers whose pick up is from about 1KHz and go up to 40KHz based from the manufacturer's data.
I spent the whole day yesterday playing with their placement and this the best placement i could have so far. Their lack of output below 100hz is augmented by the center speaker whose output is good down to 70Hz or so plus the subwoofers output is set to 90Hz. So i figure these two outputs compensate for the low outputs of the LF/RF speakers below 100Hz.
And the results so far are outstanding IMO. I'm sure it can further be improved but spending another whole day shiftng speakers and subs around is not appealing to me right now (crawling around on the floor in my apartment for hours and hours with no A/C is one of the reasons
What's your take on the phase question i had earlier?
Forgot to mention that I have 2 bass traps in the front corner walls that are 6ft x 4ft by 0.5ft in dimension from ReadyTraps Inc to tap some of the resonances I had in my small room.
The Center can't compensate for poor output from LF/RF because each channel has to play its own specific content. Think of it this way: If LF/RF failed completely would a "perfect" Center speaker conceal that fact?
The crossover on LF/RF is 100Hz so the sub won't see any steered bass from them above that -- which means it can't help at all with an uncorrected dip between 100 and 150Hz. In addition RF and to a lesser degree LF isn't hitting its Target curve and so the portion of the audio it is supposed to produce below 100Hz (to mix with the output the sub is also producing from steered bass) is weak.
That is, ALL the speakers need to hit their black dashed Targets curves to get a good mix of audio from all of them.
Normally you'd address a problem like this by raising the cutoff for LF/RF and Sub so that LF/RF didn't have to try to produce output in that weak region. But it doesn't look like your sub is capable of going much higher than ARC is using with it now, so these results may indeed be the best you can get with these speakers. LF is almost fully corrected, so if you try to tweak this further, concentrate on the positioning for RF.
On the 8 mic position stuff, what I was asking is for you to specify the order of mic placements you used, starting with #1 in the center. I.e., where is #2, where is #3, etc.
I've lost track of the phase question you asked. What was it you were asking?