I'm looking to purchase a pair of wireless speakers to mount in our home gym area. The home gym is about 30 feet away from where our home theater is set up. The basement, where the home theater and gym are located, is basically one giant room with two knee walls separating the two areas. My wife would like to watch Netflix on our Xbox 360 while she walks on the treadmill. But, because of the loudness of the treadmill motor, she has to crank up our A/V receiver to get to an acceptable level. Our receiver is an Onkyo HT-RC 160. Thanks for the help!