Originally Posted by RMK!
The 60° dispersion is actually more of an advantage than a liability. Side reflections can be distracting and smear the affected frequencies especially voices. I noted this at a recent visit to the Theater for a musical play. For HT they are even more annoying and if the space is dual function (e.g. movies/music), I prefer the 60°. For 2 channel, a case can be made for first reflections and that live performance feel but unless your room, speaker dispersion pattern and listening position are all optimized, the results could be less than ideal and come at the expense of detail. That's why I did not remove the side wall absorption panels preferring instead to listen to direct rather than reflected sound.
I might be happier with diffusers over the absorption like Dlbeck but I believe my current setup best supports the sound I like for 90% my HT room use. Chasing that extra 10% for 2 channel will likely cost me elsewhere and that's just not worth the effort. Of course all of this is just my $.02 (see my signature line) and perhaps worth even less to you ...
You could always try some GIK diffusion panels. If you don't like I would buy from you
Met with realtor yesterday and we may list on the 20th to the 1st of May. House up here in OR surrounding Eugene areas are on the market for an avg of 5-7 days. Prices have skyrocketed too. Our neighbors are asking 78 grand more than we bought for albeit they have one additional 12x14 bedroom and hardwood kitchen floors. Regardless we will profit nicely from the sell
But I will be 2hrs from you within 2 months, will have to hear your room regardless!
Side wall reflections, as I understand, only smear the sound when off axis is poor. If the off axis is near identical to the on axis response then the reflected sound will actually enhance the entire experience. OR at least in my limited understanding this is what Toole proved without a shadow of a doubt in his research. That's because the off axis reflected sound has the same frequency response shape and that sounds good to our ears while increasing other benefits. If the off axis is poor and looks drastically different than the on axis this is when it smears the sound. So most likely with a 60degree outside of the dispersion it will have poor off axis so absorption is probably best. Because after toe in there is no way the side wall will be within 60 degrees. Regardless there will be a spot where 60 degrees hits and I wonder even if it was behind the MLP on the side wall if it would be beneficial. Need to do more research
Yea I agree 60 degree can have it's advantages. But in all reality CORRECTLY using first point side wall reflections to increase spatial soundstage is not hard at all. Correct speaker placement, and even simple DIY or GIK combo panels that scatter with absorption behind. This in reality is super easy and in all we spend and do on our rooms scientifically it should be a resounding number one thing in respect to setting the room up/treating. But a speaker HAS to have good off axis tapering further away to benefit from this. If off axis is poor then absorption is better.
I do admit humbly these are not things I have much experience testing myself but have mostly understood on a theory level. I did have absorption on side walls when I had Triple 8's and felt my room sounded good.
A great cheap way to test this is use a pair of JBL LSR305's. They have a wide dispersion and great off axis performance. Setting up a pair in anyone's room and putting diffusion at first side wall reflections and listening to see if the soundstage has increased in width.
Really at the end of the day all that matters is does your system put a smile on your face? This is what I have been chasing since entering this hobby with my flatscreen tv, Onkyo TR616 AVR and Onkyo HTIB in Dec 2012. Well since hearing better systems, learning more. I felt the JBL's sounded pretty damn good but I looking forward the getting the 215's. I have a feeling I'm not as picky as some of these more 'scientific' ones. I want to learn to optimize my sound as I understand how the room dominates sound though...