Today's 'bout dead pixels and synergy. :b ...Plus 3D, 8K, and all that technical applications jazz ....
...Auto Room EQ & Corrections, Room treatments, Bass traps, good quality music recordings, and Internet downloading (hi res & hi def).
...USB, HDMI, DACs, Upsampling, Downsampling, Upstreaming, Dowmstreaming, Global Warming,
Up converting, Down converting, and Adapting. :b
This guy showed me a 35+ year old system. It was just a Pioneer Receiver with some bookshelf speakers. He was so proud , till I came over for a listen. All the speaker surrounds have rotted away a long time ago. Still sounded good to him , before I arrived .
---I know this guy, a true audiophile, and he had his two stereo speakers reversed exactly like you said. It took him six years to finally realize it!
...And not only that but the + and - (speaker connections) were also inverted, on both speakers!