Originally Posted by Spiderm0n
I looked at the specs on the receiver and didn't see anything about this. What am I looking for and need to be concerned about?
Sometimes you really have to dig for the info. For Onkyo they are typically very forthcoming on their features/specs pages on their website:
About 5 lines down " Certified 4ohms performance ". Now, keep in mind if you buy 8ohm rated speakers this won't be as big a concern so it really depends on what speakers you buy. My advice is to decide on speakers first, and that will help dictate what receiver you need. Onkyo, Yamaha, Denon, Pioneer, are all respected receiver brands and offer similar features and performance. I do recommend the Audyssey (or other room correcting software) feature and look for MultiEQ at a minimum. You can read more about Audyssey, but from my experience, when properly implemented, it can make a difference in terms of audio quality. It is also very easy to use.
Right now I am not sure about speakers, just trying to stay in a moderate price range. I'll look into other options.
The dedicated speaker and subforum will assist
I highly recommend the false wall approach with an accoustically transparent screen, especially with kids and keeping the wife happy. The added benefit, as I mentioned, is using a vertical matching speaker and getting perfect placement. So many times people buy horizontal center speakers and then place it too high, or too low, and then are challenged trying to hear dialogue or getting good off-axis response (meaning if you move to the sides of the speaker and are not sitting directly in front, you get poor sound). This was something that challenged me in my last media room, and I can honestly say the vertical center channel with the tweeter placed behind the screen at ear level has made a big difference. Another option to is to use an in-wall speaker behind an AT screen.
As for Jamestown, you can call him and discuss screen size and AT screen material or buy the AT screen and frame or buy from his Ebay store:
Attached is some links to my screen and speakers behind my Jamestown screen. My wife preferred in-wall vs false wall, so I went that route but false wall does give you more speaker flexibility:
Until you guys started mentioning keystone in this thread I had never heard of it. I like the idea of avoiding it, but am curious how much degradation is usually experienced. My plan is to mount the PJ from a 7.5’ ceiling.
Thanks everyone for all the help!
It depends on the specific projector and individual. Some projectors are move forgiving with keystoning, and some are not. I have owned both
As a general rule, I try to avoid keystone where possible, and lens shift is a really nice feature when setting up a projector if you can get it. I have found this calculator to be very helpful and it has the Optoma projector you are considering in it: