Larry, Some speakers DO suck, obviously.
Madavid, You don't HAVE to do a damn thing, if it irks you. Among the rest of us, you will have launched yet another sidebar on what protractors are used, if any, how often one adjusts or checks adjustments, etc. FWIW, you can download an excellent arc protractor off the internet for FREE, if you have a printer that can be set to print at a 1:1 scale. There's no such thing as alignment "by sight". That technique is called "misalignment". And you certainly do not need a microscope, at all, ever.
It's obvious you are trolling, by the way.
Madavid, You don't HAVE to do a damn thing, if it irks you. Among the rest of us, you will have launched yet another sidebar on what protractors are used, if any, how often one adjusts or checks adjustments, etc. FWIW, you can download an excellent arc protractor off the internet for FREE, if you have a printer that can be set to print at a 1:1 scale. There's no such thing as alignment "by sight". That technique is called "misalignment". And you certainly do not need a microscope, at all, ever.
It's obvious you are trolling, by the way.