Wide dispersion speakers for a large room

Tannoy’s are well known for wide dispersion with their 15” woofer / dual concentric design. They are 96db efficiency so you don’t need gobs of power to drive them. 
Not sure if you can find them in your budget. 

Thanks for the response, guys. I have a Rogue Sphinx (100 W/channel) as an amp and Zu Omen speakers, but these are in a smaller room. Moving everything to the larger room is the plan. This will be a two channel system but I'm open to adding a sub or two. Although my budget is $3500, I'm adding $500/month to my audio savings account, so I can eventually spend more on speakers.

The idea of higher efficiency speakers makes sense, as does having them be fairly large. Unfortunately, my wife doesn't want anything overbearing.

For serious listening I'll be about 10 feet from them, while the max space between speakers is about 10 feet. At other times, I may be well off axis. I listen at lower levels but occasionally like to turn the music quite loud. We listen to a mix of orchestral, opera, rock and saloon singers (Etta James, Sinatra, etc.), so piano and vocals need to be done well.

Thanks for all the suggestions and advice. Thankfully I'm in no real hurry, so I can continue to save.

I do plan on buying used, so I hope to eventually be able to set up something really nice.

Now to do some research on the suggested speakers.

Please keep the ideas coming.

I agree with Latik regarding the Tannoys. I use 12" HPD drivers (dual concentric from 1975) in my large listening room ( 16' X 34', with cathedral ceilings). They are in custom 150 liter enclosures that are built on the massive side, at nearly 2" in thickness, and 192 lbs. each. Situated on the end wall though, but boy, do they do the job!

Regards,
Dan

Thanks all. I'm looking at the Tannoy XT 8F. It has nice reviews, is efficient, has the ability to move lots of air, and is well within my budget. Should anybody have any other advice, I'd love to hear it.