2.5 feet is bad. You may benefit in LF do to room gain. But you might think twice about any rear-ported speakers. Your speakers will be about 7 feet apart, which also isn't bad for the 10' distance. Once you have them setup you may talk the wife into moving the listening position forward or back a foot or so to hit the sweet spot.
How long does the clap echo last? A couple of reverberations isn't too big of a deal. You don't want the room too dead. Now, if the clap really bounces around you could add some plants, stuffed chairs, pillows, etc. I doubt you'll ever get the wife to agree to bass traps, corner traps, and all that other acoustic treatment stuff.
How long does the clap echo last? A couple of reverberations isn't too big of a deal. You don't want the room too dead. Now, if the clap really bounces around you could add some plants, stuffed chairs, pillows, etc. I doubt you'll ever get the wife to agree to bass traps, corner traps, and all that other acoustic treatment stuff.