I'm looking to set up a system for listening to music in my barn, which is roughly 20x80' of open space. There's an open loft above the first floor, which makes matters even more difficult. I'd appreciate any ideas for systems that won't be swallowed up by the huge space. Thanks!
Do you have pictures?
This could be a fun project. I did a fantastic system for a large barn that was converted to a community hall thirty years ago.
You will need to do something custom for the best results.
You will need something along these lines.
http://www.alteclansing.com/index.php?file=north_product_detail&iproduct_id=a7
A system like that is best biamped using electronic crossovers between 700 and 1000 Hz.
Bruce Edgar is now the king of horns, and has published a number of excellent DIY projects for your application.
Basically the system foundation needs to be a 15 inch low Qts driver loaded in a horn. When I did mine, I used a couple of suitable JBL drivers, and built a pair of the famous Jensen horns. They has 33" horn mouths and sounded marvelous. JBL, make some excellent compression sectoral horns, that will fit the bill. If you want superb audio results, rather than use a sectoral HF horn use a linear array of good efficient mid range drivers, topped out with horn bullet tweeters. Biamp, or preferably triamp with active crossovers at 500 Hz and 4 to 5 KHz.
Projects like this really get my juices flowing.
One word of caution, if you use speakers systems usually talked about on this forum, you will fall flat on your face.