Maybe this was what Amar Bose was thinking about when he designed the (discontinued) 901 speakers with Direct Reflecting sound? Here’s the setup at the moment.
The TuneIn app is running on the Roku stick that’s plugged into the 10-year-old Samsung TV on the porch. It plays through the aux input of my Bose Wave Series II, with the TV sound muted. (With the rise of HDMI sound bars, TV’s have dropped analog audio outputs.)
So here’s the thing. Regardless of what source is playing, the left channel is always noticeably louder than the right channel. If I move closer to the Wave then the left and right speakers are equally loud. Another option that works is putting my notebook computer on the arm of the chair, which is how most of these blog posts are written.
The sound must be reflecting off of the door glass, and the computer screen is blocking the reflection, so I am hearing more of the direct sound. Lowering and raising the screen on the computer confirms the change in L/R balance. SCIENCE!