Speaker Setup.....

Here's a little something they may grab someone's attention.

When you listen to music in your present setup, do you have a sweet spot of about 1 or 2 persons wide, and does the music move with you when you move out of the sweet spot? This is pretty much a yes or no question.

With Master Set, the sweet spot is eliminated, and you can sit anywhere with the same sound, and better sound than before when you had the sweet spot.

As mentioned earlier, and in the video, speakers likely won't be perfectly spaced apart. If aesthetic isn't important, it's the way to go. You simply focus the speaker position to your ears. 

I use Cardas.
http://www.cardas.com/room_setup_calculators.php
Acceptable  sonics throughout the room. YMMV.

Pdf? Really? In 2019? Don't they know we all use smart phones? Make your info screen adaptive.

You have a smartphone in 2019 that can't open a pdf?  What is it, one of those iphones?!